From 27b601b172b47b38b8dbc648a71e4e2ca223c332 Mon Sep 17 00:00:00 2001
From: Dotta <bippadotta@protonmail.com>
Date: Fri, 9 Oct 2026 10:54:07 -0500
Subject: [PATCH] Finish Copilot production runtime on current master

Preserve the reviewed candidate source and mainline provider behavior.

Co-Authored-By: Paperclip <noreply@paperclip.ing>
---
 packages/paperclip-runner/acpx-profiles.json  |   7 +-
 packages/paperclip-runner/package.json        |  12 +-
 .../runner-core/src/acpx_provider_backend.rs  | 309 +++++++++++++++++-
 .../src/acpx_provider_capabilities.rs         |   8 +-
 .../runner-core/src/acpx_sidecar_transport.rs |   1 +
 .../runner-core/src/bin/fake-acpx-sidecar.rs  |  33 ++
 .../src/generated_acpx_profiles.rs            |   2 +-
 .../tests/native_provider_backend.rs          | 103 ++++++
 .../scripts/build-provider-pack.mjs           |  12 +-
 .../scripts/candidate-provider-pack.mjs       |   6 +-
 .../scripts/candidate-provider-pack.test.mjs  |  51 ++-
 .../scripts/copilot-profile-identity.mjs      | 106 ++++++
 .../scripts/copilot-smoke-resources.mjs       |  22 ++
 .../scripts/copilot-smoke-resources.test.mjs  |  18 +-
 .../scripts/discover-copilot-acp.mjs          |   4 +-
 .../scripts/discover-copilot-acp.test.mjs     |   9 +
 .../scripts/generate-acpx-profiles.mjs        |   2 +-
 .../scripts/install-copilot-assets.mjs        |  94 ++++++
 .../scripts/install-copilot-assets.test.mjs   | 114 +++++++
 .../scripts/qualify-copilot-acp.mjs           | 252 +++++++-------
 .../scripts/qualify-copilot-acp.test.mjs      |  21 +-
 .../scripts/release-provider-pack.mjs         |  10 +
 .../scripts/release-provider-pack.test.mjs    |  16 +
 .../backends/harness-driver-backend.test.ts   |   6 +-
 .../src/backends/harness-driver-backend.ts    |   6 +-
 .../backends/native-backend-factory.test.ts   |   5 +-
 .../src/cli/acpx-runtime-sidecar.ts           |   4 +-
 .../src/cli/copilot-metadata-probe.ts         |   5 +
 .../src/cli/eval-session-contract.test.ts     |  19 ++
 .../src/contracts/harness-driver.ts           |   3 +-
 .../src/contracts/native-execution.test.ts    |  64 ++++
 .../src/contracts/native-execution.ts         |   3 +
 .../src/contracts/native-session-backend.ts   |   3 +-
 .../src/contracts/runtime-context.ts          |   6 +
 .../drivers/acpx/acp-permission-adapter.ts    |   2 +
 .../drivers/acpx/codex-acpx-driver.test.ts    |  30 ++
 .../src/drivers/acpx/codex-acpx-driver.ts     |  47 ++-
 .../drivers/acpx/codex-credentials.test.ts    |  39 ++-
 .../acpx/codex-runtime-adapter.test.ts        | 135 ++++++++
 .../src/drivers/acpx/codex-runtime-adapter.ts |  68 +++-
 .../drivers/acpx/copilot-extension-adapter.ts |   6 +-
 .../src/drivers/acpx/copilot-installation.ts  |   7 +-
 .../acpx/copilot-permission-context.ts        |  32 +-
 .../src/drivers/acpx/copilot-profile.ts       |   1 +
 .../src/drivers/acpx/generated-profiles.ts    |   5 +-
 .../drivers/acpx/installation-integrity.ts    |  17 +-
 .../native-distribution-integrity.test.ts     | 139 ++++++++
 .../acpx/native-distribution-integrity.ts     |   7 +-
 .../src/drivers/acpx/profile-activity.ts      |   2 +-
 .../acpx/profile-compatibility.test.ts        |  13 +
 .../src/drivers/acpx/profile-compatibility.ts |   4 +-
 .../src/drivers/acpx/profile-installation.ts  |   4 +-
 .../drivers/acpx/provider-assets-root.test.ts |  12 +
 .../src/drivers/acpx/provider-assets-root.ts  |   4 +-
 .../src/drivers/acpx/qualified-profiles.ts    |   1 +
 .../src/drivers/acpx/runtime-host.test.ts     |  14 +-
 .../src/drivers/acpx/runtime-host.ts          |  15 +-
 .../src/drivers/acpx/runtime-sandbox.ts       |  10 +-
 .../drivers/acpx/single-read-evidence.test.ts |   2 +-
 .../src/drivers/codex/app-server-transport.ts |   2 +
 .../codex-app-server-driver.lifecycle.test.ts |   3 +-
 .../codex/codex-app-server-driver.test.ts     |  62 ++++
 .../drivers/codex/codex-harness-session.ts    |   4 +-
 .../codex/codex-notification-identity.test.ts |   4 +
 .../codex/codex-session-notifications.ts      |  20 ++
 .../codex/codex-thread-normalization.ts       |   1 +
 .../drivers/copilot-metadata-probe.test.ts    |  78 +++++
 .../src/drivers/copilot-metadata-probe.ts     | 162 +++++++++
 packages/paperclip-runner/src/live/index.ts   |   1 +
 .../runnerd-acpx-permission-ordering.test.ts  |   4 +
 .../src/live/runnerd-codex-transport.test.ts  |  66 +++-
 .../src/live/runnerd-codex-transport.ts       |  54 ++-
 .../src/native-session-runtime.ts             |   8 +-
 .../test/acpx-codex-package-contract.test.mjs |   1 +
 ...ilot-profile-v14-mainline-pi-identity.json |  43 +++
 ...ilot-profile-v15-mainline-pi-identity.json |  43 +++
 ...ilot-profile-v16-mainline-pi-identity.json |  43 +++
 ...ilot-profile-v17-mainline-pi-identity.json |  43 +++
 .../copilot-profile-v33-identity.json         |  81 +++++
 .../copilot-profile-v34-identity.json         |  81 +++++
 server/scripts/install-copilot-assets.mjs     |  18 +
 81 files changed, 2517 insertions(+), 257 deletions(-)
 create mode 100644 packages/paperclip-runner/scripts/copilot-profile-identity.mjs
 create mode 100644 packages/paperclip-runner/scripts/install-copilot-assets.mjs
 create mode 100644 packages/paperclip-runner/scripts/install-copilot-assets.test.mjs
 create mode 100644 packages/paperclip-runner/src/cli/copilot-metadata-probe.ts
 create mode 100644 packages/paperclip-runner/src/drivers/copilot-metadata-probe.test.ts
 create mode 100644 packages/paperclip-runner/src/drivers/copilot-metadata-probe.ts
 create mode 100644 packages/paperclip-runner/test/fixtures/copilot-profile-v14-mainline-pi-identity.json
 create mode 100644 packages/paperclip-runner/test/fixtures/copilot-profile-v15-mainline-pi-identity.json
 create mode 100644 packages/paperclip-runner/test/fixtures/copilot-profile-v16-mainline-pi-identity.json
 create mode 100644 packages/paperclip-runner/test/fixtures/copilot-profile-v17-mainline-pi-identity.json
 create mode 100644 packages/paperclip-runner/test/fixtures/copilot-profile-v33-identity.json
 create mode 100644 packages/paperclip-runner/test/fixtures/copilot-profile-v34-identity.json
 create mode 100644 server/scripts/install-copilot-assets.mjs

diff --git a/packages/paperclip-runner/acpx-profiles.json b/packages/paperclip-runner/acpx-profiles.json
index 81a3e159050..3a79a740325 100644
--- a/packages/paperclip-runner/acpx-profiles.json
+++ b/packages/paperclip-runner/acpx-profiles.json
@@ -32,14 +32,13 @@
       "requiresProviderPolicy": true
     },
     "copilot": {
-      "agentProfileVersion": 17,
+      "agentProfileVersion": 34,
       "agentServerPackage": "@github/copilot",
       "agentServerVersion": "1.0.88",
       "agentRuntimePackage": null,
       "agentRuntimeVersion": null,
-      "commandDigest": "sha256:481d0852ae8272a90f9912723d540518a874a0da65a9070e33b52ea1a14cbd7f",
-      "requiresProviderPolicy": true,
-      "qualificationStatus": "pending"
+      "commandDigest": "sha256:6dde98a9dbadf22f17ca28f133dbe2a65fa199827741190f569704e44bdc20ed",
+      "requiresProviderPolicy": true
     },
     "claude": {
       "agentProfileVersion": 1,
diff --git a/packages/paperclip-runner/package.json b/packages/paperclip-runner/package.json
index 8c1249044ca..f1ec09e14ec 100644
--- a/packages/paperclip-runner/package.json
+++ b/packages/paperclip-runner/package.json
@@ -53,7 +53,10 @@
     "dist-issue-thread",
     "protocol",
     "styles.css",
-    "README.md"
+    "README.md",
+    "scripts/install-copilot-assets.mjs",
+    "scripts/materialize-copilot-binary.mjs",
+    "scripts/copilot-inner-distribution.mjs"
   ],
   "publishConfig": {
     "executableFiles": [
@@ -81,7 +84,7 @@
     "typecheck:browser": "tsc -p tsconfig.browser.json --noEmit",
     "test": "pnpm run test:typescript && pnpm run test:rust",
     "test:typescript": "pnpm run test:typescript:prep && vitest run",
-    "test:typescript:prep": "pnpm run ensure:eval-build-deps && pnpm run build:rust && node --test test/protocol-contract.test.mjs test/acpx-sidecar-contract.test.mjs test/acpx-codex-package-contract.test.mjs test/acpx-model-selection-package-contract.test.mjs test/acpx-message-boundaries-package-contract.test.mjs test/acpx-rich-extensions-package-contract.test.mjs test/acpx-pi-receipt-package-contract.test.mjs test/acpx-response-delivery-package-contract.test.mjs scripts/candidate-provider-pack.test.mjs scripts/cursor-provisioner-layout.test.mjs scripts/release-provider-pack.test.mjs scripts/aws-agentcore-provisioning.test.mjs scripts/build-verified-provider-entrypoints.test.mjs scripts/local-provider-smoke-environment.test.mjs scripts/materialize-opencode-binary.test.mjs scripts/installed-package-pack.test.mjs scripts/runner-package-executable.test.mjs scripts/stage-runner-binary.test.mjs",
+    "test:typescript:prep": "pnpm run ensure:eval-build-deps && pnpm run build:rust && node --test test/protocol-contract.test.mjs test/acpx-sidecar-contract.test.mjs test/acpx-codex-package-contract.test.mjs test/acpx-model-selection-package-contract.test.mjs test/acpx-message-boundaries-package-contract.test.mjs test/acpx-rich-extensions-package-contract.test.mjs test/acpx-pi-receipt-package-contract.test.mjs test/acpx-response-delivery-package-contract.test.mjs scripts/candidate-provider-pack.test.mjs scripts/cursor-provisioner-layout.test.mjs scripts/release-provider-pack.test.mjs scripts/aws-agentcore-provisioning.test.mjs scripts/build-verified-provider-entrypoints.test.mjs scripts/local-provider-smoke-environment.test.mjs scripts/materialize-opencode-binary.test.mjs scripts/installed-package-pack.test.mjs scripts/runner-package-executable.test.mjs scripts/stage-runner-binary.test.mjs scripts/provider-pack-executable-shims.test.mjs && pnpm run test:copilot:contracts",
     "test:typescript:vitest": "node ./scripts/run-pr-vitest-lane.mjs",
     "test:rust": "cargo test --release --manifest-path runner/Cargo.toml --locked --workspace",
     "test:codex": "cargo test --manifest-path runner/Cargo.toml --locked -p paperclip-runner-core --test codex_provider",
@@ -169,7 +172,10 @@
     "verify:rootless": "bash scripts/verify-rootless-linux.sh",
     "test:opencode:qualification": "PAPERCLIP_OPENCODE_QUALIFY=1 node --test scripts/qualify-opencode-runtime.test.mjs",
     "generate:acpx-profiles": "node scripts/generate-acpx-profiles.mjs",
-    "check:acpx-profiles": "node scripts/generate-acpx-profiles.mjs --check"
+    "check:acpx-profiles": "node scripts/generate-acpx-profiles.mjs --check",
+    "check:copilot-profile": "node scripts/copilot-profile-identity.mjs --check",
+    "test:copilot:contracts": "node --test scripts/build-copilot-distribution.test.mjs scripts/copilot-inner-distribution.test.mjs scripts/copilot-smoke-resources.test.mjs scripts/discover-copilot-acp.test.mjs scripts/materialize-copilot-binary.test.mjs scripts/install-copilot-assets.test.mjs scripts/probe-copilot-acp.test.mjs scripts/qualify-copilot-acp.test.mjs test/acpx-message-boundaries-package-contract.test.mjs",
+    "postinstall": "node scripts/install-copilot-assets.mjs"
   },
   "dependencies": {
     "@agentclientprotocol/claude-agent-acp": "0.73.0",
diff --git a/packages/paperclip-runner/runner/crates/runner-core/src/acpx_provider_backend.rs b/packages/paperclip-runner/runner/crates/runner-core/src/acpx_provider_backend.rs
index 3757c6ea68d..8f01f705a43 100644
--- a/packages/paperclip-runner/runner/crates/runner-core/src/acpx_provider_backend.rs
+++ b/packages/paperclip-runner/runner/crates/runner-core/src/acpx_provider_backend.rs
@@ -2001,6 +2001,12 @@ impl AcpxCommandExecutor {
             let Some(events) = events else { break };
             let mut provider_turn_settled = false;
             for event in events {
+                let provider_process_lost = matches!(
+                    &event,
+                    crate::acpx_provider_state::AcpxProviderStateEvent::TurnTerminal {
+                        error: Some(error), ..
+                    } if error.get("code").and_then(Value::as_str) == Some("ACPX_PROVIDER_PROCESS_LOST")
+                );
                 let normalized = project_acpx_state_event(&self.context, &event)
                     .map_err(|error| DurableRunnerError::invalid(error.to_string()))?;
                 let terminal = normalized.iter().find_map(|event| {
@@ -2010,7 +2016,10 @@ impl AcpxCommandExecutor {
                     )
                     .then(|| event.event_type.clone())
                 });
-                if terminal.is_some() {
+                // A failed provider cannot answer session controls. Its
+                // terminal receipt must remain publishable without another
+                // protocol request, and must revoke future warm admission.
+                if terminal.is_some() && !provider_process_lost {
                     let snapshot = self.goal_control("session.goal.get", &json!({}))?;
                     let state = self.state.as_mut().expect("ACPX session has durable state");
                     for (event_type, priority, payload) in snapshot.events {
@@ -2051,10 +2060,12 @@ impl AcpxCommandExecutor {
                 }
                 if let Some(event_type) = terminal {
                     state.active_turn_id = None;
-                    state.lifecycle = if self
-                        .session
-                        .as_ref()
-                        .is_some_and(|session| session.runtime_retired())
+                    state.provider_exit_unconfirmed |= provider_process_lost;
+                    state.lifecycle = if provider_process_lost
+                        || self
+                            .session
+                            .as_ref()
+                            .is_some_and(|session| session.runtime_retired())
                     {
                         "closed"
                     } else {
@@ -2064,11 +2075,12 @@ impl AcpxCommandExecutor {
                     provider_turn_settled = true;
                     // An ACP goal has session lifetime, not prompt lifetime.
                     // Out-of-prompt goal updates remain observable after quiescence.
-                    if state
-                        .goal_projection
-                        .pointer("/goal/status")
-                        .and_then(Value::as_str)
-                        == Some("active")
+                    if !provider_process_lost
+                        && state
+                            .goal_projection
+                            .pointer("/goal/status")
+                            .and_then(Value::as_str)
+                            == Some("active")
                     {
                         continue;
                     }
@@ -4042,6 +4054,283 @@ mod tests {
         fs::remove_dir_all(directory).unwrap();
     }
 
+    #[cfg(unix)]
+    #[test]
+    fn copilot_attachment_refreshes_current_grant_without_changing_profile() {
+        let directory = temporary_directory("cross-run-attach");
+        let runtime = directory.join("runtime");
+        let workspace = directory.join("workspace");
+        fs::create_dir_all(&runtime).unwrap();
+        fs::create_dir_all(&workspace).unwrap();
+        fs::set_permissions(&runtime, fs::Permissions::from_mode(0o700)).unwrap();
+        fs::set_permissions(&workspace, fs::Permissions::from_mode(0o700)).unwrap();
+        let marker = directory.join("provider-started");
+        let command = directory.join("sidecar");
+        write_artifact(
+            &command,
+            format!("#!/bin/sh\ntouch '{}'\n", marker.display()).as_bytes(),
+            true,
+        );
+        let launch_profile = AcpxLaunchProfile {
+            authority_digest: format!("sha256:{}", "d".repeat(64)),
+            command: command.clone(),
+            args: Vec::new(),
+            artifacts: vec![artifact(&command)],
+        };
+        let mut descriptor_value = descriptor("copilot");
+        descriptor_value["agentServerPackage"] = json!("@github/copilot");
+        descriptor_value["agentServerVersion"] = json!("1.0.88");
+        descriptor_value["agentRuntimePackage"] = Value::Null;
+        descriptor_value["agentRuntimeVersion"] = Value::Null;
+        descriptor_value["commandDigest"] = serde_json::from_str::<Value>(include_str!(
+            "../../../../test/fixtures/copilot-profile-v34-identity.json"
+        ))
+        .unwrap()["commandDigest"]
+            .clone();
+        descriptor_value["providerPolicy"] = json!({ "readOnly": true });
+        descriptor_value["sidecarCommand"] = json!(command);
+        descriptor_value["runtimeContext"] = json!({ "instructions": { "digest": "stable" }, "mcp": { "digest": "before" }, "aggregateDigest": "before" });
+        descriptor_value["sidecarArgs"] = json!([]);
+        descriptor_value["runtimeDirectory"] = json!(runtime);
+        descriptor_value["cwd"] = json!(workspace);
+        let prior_root = directory.join("old-registered-copy");
+        let current_root = directory.join("new-registered-copy");
+        fs::create_dir_all(&prior_root).unwrap();
+        fs::create_dir_all(&current_root).unwrap();
+        descriptor_value["instructions"] = json!(format!(
+            "Current AGENT_HOME: {}. Custom entry.",
+            prior_root.display()
+        ));
+        descriptor_value["runtimeContext"] = json!({
+            "aggregateDigest": "a".repeat(64),
+            "prompt": {"revision": "pinned", "digest": "b".repeat(64)},
+            "instructions": {
+                "entryPath": "AGENTS.md",
+                "bundle": {"digest": "c".repeat(64), "rootPath": "/old-bundle"},
+                "workingCopy": {"kind": "agent_files", "entryPath": "AGENTS.md", "rootPath": prior_root},
+            },
+            "skills": [{"key": "skill-1", "bundle": {"digest": "d".repeat(64), "rootPath": "/old-skill"}}],
+            "mcp": {"assignmentSetId": "assignment-1", "digest": "e".repeat(64), "bindingId": "old-run-binding"},
+            "futurePolicy": {"companyId": "company-1"},
+        });
+        let original_descriptor: AcpxProviderDescriptor =
+            serde_json::from_value(descriptor_value.clone()).unwrap();
+        let identity = AcpxProviderSessionIdentity {
+            kind: "acpx".to_owned(),
+            normalized_session_id: "session-1".to_owned(),
+            acpx_record_id: "record-1".to_owned(),
+            backend_session_id: "backend-1".to_owned(),
+            agent_session_id: "agent-1".to_owned(),
+            profile_digest: original_descriptor.command_digest.clone(),
+            workspace_digest: format!("sha256:{}", "a".repeat(64)),
+            requested_model: original_descriptor.model.clone(),
+            effective_model: original_descriptor.model.clone(),
+            permission_mode: Some(original_descriptor.permission_mode),
+            mode: original_descriptor.mode.clone(),
+            provider_lifetime_fence_candidates: [60_001, 60_002, 60_003],
+        };
+        let operations = Vec::new();
+        let tool_set = AuthorizedToolSet {
+            schema: TOOL_SET_SCHEMA.to_owned(),
+            schema_version: 1,
+            catalog_digest: authorized_tool_catalog_digest(&operations).unwrap(),
+            operations,
+        };
+        let launch_profile_digest = launch_profile.canonical_digest().unwrap();
+        let mut state = AcpxDurableState::new(original_descriptor, tool_set, launch_profile_digest);
+        state.lifecycle = "suspended".to_owned();
+        state.identity = Some(identity);
+        let original_config = test_config(&directory, Some(launch_profile.clone()));
+        let mut original = AcpxCommandExecutor::with_runner_config(&directory, &original_config);
+        original.state = Some(state);
+        let settled = original.state.clone().unwrap();
+        let ready = original.snapshot().unwrap().result;
+        assert_eq!(ready["warmAttachReady"], true);
+        assert_eq!(ready["warmAttachBlockers"], json!([]));
+        let blocked_states: [(&str, fn(&mut AcpxDurableState)); 4] = [
+            ("durable_closed", |state| {
+                state.lifecycle = "closed".to_owned()
+            }),
+            ("provider_exit_unconfirmed", |state| {
+                state.lifecycle = "prepared".to_owned();
+                state.provider_exit_unconfirmed = true;
+            }),
+            ("provider_identity_unavailable", |state| {
+                state.lifecycle = "prepared".to_owned();
+                state.identity = None;
+            }),
+            ("durable_active_turn", |state| {
+                state.lifecycle = "turn_active".to_owned();
+                state.active_turn_id = Some("turn-1".to_owned());
+            }),
+        ];
+        for (blocker, mutate) in blocked_states {
+            original.state = Some(settled.clone());
+            mutate(original.state.as_mut().unwrap());
+            let snapshot = original.snapshot().unwrap().result;
+            assert_eq!(snapshot["warmAttachReady"], false, "{blocker}");
+            assert_eq!(snapshot["warmAttachBlockers"], json!([blocker]));
+        }
+        // A readiness probe must retain the old authority's audit events until
+        // the durable runner commits and acknowledges them, including recovery
+        // notices that run.attach itself is allowed to consume.
+        for event_type in ["session.resumed", "harness.diagnostic"] {
+            original.state = Some(settled.clone());
+            original
+                .state
+                .as_mut()
+                .unwrap()
+                .push(NormalizedProviderEvent {
+                    event_type: event_type.to_owned(),
+                    priority: EventPriority::P0,
+                    payload: json!({}),
+                })
+                .unwrap();
+            let snapshot = original.snapshot().unwrap().result;
+            assert_eq!(snapshot["warmAttachReady"], false);
+            assert_eq!(
+                snapshot["warmAttachBlockers"],
+                json!(["durable_pending_events"])
+            );
+            assert_eq!(original.retained_events().unwrap().len(), 1);
+            original.acknowledge_events(1).unwrap();
+            assert_eq!(original.snapshot().unwrap().result["warmAttachReady"], true);
+        }
+        original.state = Some(settled);
+        assert!(!marker.exists(), "readiness must not start a provider");
+        original.save_state().unwrap();
+
+        let mut wrong_session_config = original_config.clone();
+        wrong_session_config.run_id = "run-2".to_owned();
+        wrong_session_config.normalized_session_id = "session-2".to_owned();
+        let mut wrong_session =
+            AcpxCommandExecutor::with_runner_config(&directory, &wrong_session_config);
+        assert!(wrong_session.restore().is_err());
+
+        let mut attached_config = original_config.clone();
+        attached_config.run_id = "run-2".to_owned();
+        let mut attached = AcpxCommandExecutor::with_runner_config(&directory, &attached_config);
+        attached.restore().unwrap();
+        assert!(!marker.exists());
+        let non_attach_error = attached
+            .execute(&Command {
+                schema: "paperclip.prp.command.v1".to_owned(),
+                command_id: "command-before-attach".to_owned(),
+                controller_seq: 1,
+                command_type: "session.snapshot".to_owned(),
+                issued_at: "2026-09-01T00:00:00.000Z".to_owned(),
+                deadline_at: None,
+                precondition: None,
+                payload: json!({}),
+            })
+            .unwrap_err();
+        assert!(non_attach_error
+            .to_string()
+            .contains("requires run.attach before commands from a new run"));
+
+        descriptor_value["runId"] = json!("run-2");
+        fs::remove_dir_all(&prior_root).unwrap();
+        descriptor_value["instructions"] = json!(format!(
+            "Current AGENT_HOME: {}. Fresh custom entry.",
+            current_root.display()
+        ));
+        descriptor_value["runtimeContext"]["instructions"]["workingCopy"]["rootPath"] =
+            json!(current_root);
+        descriptor_value["runtimeContext"]["instructions"]["bundle"]["rootPath"] =
+            json!("/new-bundle");
+        descriptor_value["runtimeContext"]["skills"][0]["bundle"]["rootPath"] = json!("/new-skill");
+        descriptor_value["runtimeContext"]["mcp"]["bindingId"] = json!("new-run-binding");
+        attached
+            .attach_run(&json!({"provider": descriptor_value}))
+            .unwrap();
+        assert_eq!(attached.state.as_ref().unwrap().descriptor.run_id, "run-2");
+        assert!(!marker.exists());
+        let refreshed = &attached.state.as_ref().unwrap().descriptor;
+        assert_eq!(
+            refreshed.runtime_context,
+            descriptor_value["runtimeContext"]
+        );
+        assert_eq!(refreshed.instructions, descriptor_value["instructions"]);
+        let session_config = refreshed
+            .session_config(
+                attached.state.as_ref().unwrap().tool_set.clone(),
+                attached.state.as_ref().unwrap().identity.clone(),
+                Some(&launch_profile),
+            )
+            .unwrap();
+        assert_eq!(
+            session_config.runtime_context,
+            descriptor_value["runtimeContext"]
+        );
+        assert_eq!(
+            session_config.system_instructions,
+            descriptor_value["instructions"]
+        );
+        // Both persistence and the sidecar launch config receive the new grant.
+        let persisted: AcpxDurableState =
+            serde_json::from_slice(&fs::read(attached.state_path()).unwrap()).unwrap();
+        assert_eq!(
+            persisted.descriptor.runtime_context,
+            descriptor_value["runtimeContext"]
+        );
+        let mut same_run_mutation = descriptor_value.clone();
+        same_run_mutation["instructions"] = json!("A different grant in the same run");
+        assert!(attached
+            .attach_run(&json!({"provider": same_run_mutation}))
+            .unwrap_err()
+            .to_string()
+            .contains("new authenticated run"));
+
+        // In-place warm handoff executes under the old authority. Only the
+        // authenticated next-authority boundary may admit the new descriptor;
+        // event correlation stays on run-1 until durable activation completes.
+        assert!(original
+            .attach_run(&json!({"provider": descriptor_value}))
+            .is_err());
+        let warm_payload = json!({
+            "provider": descriptor_value,
+            "paperclipNextAuthority": {
+                "identity": {
+                    "runnerInstanceId": original_config.runner_instance_id,
+                    "environmentLeaseId": original_config.environment_lease_id,
+                    "runId": "run-2",
+                    "normalizedSessionId": original_config.normalized_session_id,
+                    "turnId": "turn-2",
+                    "itemId": "item-2",
+                },
+                "connection": {"mode": "connect", "connectUrl": original_config.connect_url},
+            },
+        });
+        let mut wrong_run = warm_payload.clone();
+        wrong_run["paperclipNextAuthority"]["identity"]["runId"] = json!("run-3");
+        assert!(original.attach_run(&wrong_run).is_err());
+        let mut wrong_session = warm_payload.clone();
+        wrong_session["paperclipNextAuthority"]["identity"]["normalizedSessionId"] =
+            json!("other-session");
+        assert!(original.attach_run(&wrong_session).is_err());
+        let mut changed_profile = warm_payload.clone();
+        changed_profile["provider"]["cwd"] = json!("/different-workspace");
+        assert!(original.attach_run(&changed_profile).is_err());
+        let mut refreshed = warm_payload.clone();
+        refreshed["provider"]["runtimeContext"]["mcp"] = json!({ "digest": "after" });
+        refreshed["provider"]["runtimeContext"]["aggregateDigest"] = json!("after");
+        let mut changed_context = refreshed.clone();
+        changed_context["provider"]["runtimeContext"]["instructions"] =
+            json!({ "digest": "changed" });
+        assert!(original.attach_run(&changed_context).is_err());
+        original.attach_run(&refreshed).unwrap();
+        assert_eq!(
+            original.state.as_ref().unwrap().descriptor.runtime_context["mcp"]["digest"],
+            "after"
+        );
+        assert_eq!(original.state.as_ref().unwrap().descriptor.run_id, "run-2");
+        assert_eq!(original.context.run_id, "run-1");
+        original.rotate_authority(&attached_config);
+        assert_eq!(original.context.run_id, "run-2");
+        assert!(!marker.exists());
+        fs::remove_dir_all(directory).unwrap();
+    }
+
     #[cfg(unix)]
     #[test]
     fn active_turn_recovery_closes_without_starting_the_provider() {
diff --git a/packages/paperclip-runner/runner/crates/runner-core/src/acpx_provider_capabilities.rs b/packages/paperclip-runner/runner/crates/runner-core/src/acpx_provider_capabilities.rs
index d9ebde3208e..65169a5a7bd 100644
--- a/packages/paperclip-runner/runner/crates/runner-core/src/acpx_provider_capabilities.rs
+++ b/packages/paperclip-runner/runner/crates/runner-core/src/acpx_provider_capabilities.rs
@@ -11,7 +11,7 @@ pub(crate) enum RunAttachmentPolicy {
 
 pub(crate) fn run_attachment_policy(agent: &str) -> RunAttachmentPolicy {
     match agent {
-        "cursor" | "pi" => RunAttachmentPolicy::AuthenticatedRunGrants,
+        "cursor" | "copilot" | "pi" => RunAttachmentPolicy::AuthenticatedRunGrants,
         "claude" => RunAttachmentPolicy::AuthenticatedAssetPaths,
         _ => RunAttachmentPolicy::ImmutableInstructions,
     }
@@ -27,6 +27,10 @@ mod tests {
             run_attachment_policy("cursor"),
             RunAttachmentPolicy::AuthenticatedRunGrants
         );
+        assert_eq!(
+            run_attachment_policy("copilot"),
+            RunAttachmentPolicy::AuthenticatedRunGrants
+        );
         assert_eq!(
             run_attachment_policy("pi"),
             RunAttachmentPolicy::AuthenticatedRunGrants
@@ -35,7 +39,7 @@ mod tests {
             run_attachment_policy("claude"),
             RunAttachmentPolicy::AuthenticatedAssetPaths
         );
-        for agent in ["codex", "grok", "copilot", "unknown"] {
+        for agent in ["codex", "grok", "unknown"] {
             assert_eq!(
                 run_attachment_policy(agent),
                 RunAttachmentPolicy::ImmutableInstructions
diff --git a/packages/paperclip-runner/runner/crates/runner-core/src/acpx_sidecar_transport.rs b/packages/paperclip-runner/runner/crates/runner-core/src/acpx_sidecar_transport.rs
index 331f6ed17f3..ca65f299343 100644
--- a/packages/paperclip-runner/runner/crates/runner-core/src/acpx_sidecar_transport.rs
+++ b/packages/paperclip-runner/runner/crates/runner-core/src/acpx_sidecar_transport.rs
@@ -860,6 +860,7 @@ fn response_error_classification(error: &ResponseError) -> &'static str {
         "ACPX_TOOL_CALL_STALE" => return "provider_tool_call_retired",
         "AUTH_REQUIRED" => return "authentication_required",
         "COPILOT_AUTH_REQUIRED" => return "authentication_required",
+        "COPILOT_INSTALLATION_INVALID" => return "agent_installation_invalid",
         "COPILOT_POLICY_VIOLATION" => return "copilot_policy_violation",
         "COPILOT_DETACHED_WORK_UNSUPPORTED" => return "copilot_detached_work_unsupported",
         "COPILOT_ENTITLEMENT_DENIED" => return "provider_entitlement_denied",
diff --git a/packages/paperclip-runner/runner/crates/runner-core/src/bin/fake-acpx-sidecar.rs b/packages/paperclip-runner/runner/crates/runner-core/src/bin/fake-acpx-sidecar.rs
index 86a932bad15..29468749552 100644
--- a/packages/paperclip-runner/runner/crates/runner-core/src/bin/fake-acpx-sidecar.rs
+++ b/packages/paperclip-runner/runner/crates/runner-core/src/bin/fake-acpx-sidecar.rs
@@ -64,6 +64,7 @@ fn run() -> Result<(), Box<dyn std::error::Error>> {
     let mut stdout = io::stdout().lock();
     let mut next_sequence = 1_u64;
     let mut goal = Value::Null;
+    let mut provider_lost = false;
     let mut session_identity = Value::Null;
     for line in stdin.lock().lines() {
         let request: Value = serde_json::from_str(&line?)?;
@@ -75,6 +76,16 @@ fn run() -> Result<(), Box<dyn std::error::Error>> {
             .get("command")
             .and_then(Value::as_str)
             .ok_or("request command is missing")?;
+        if mode == "turns-provider-death" && provider_lost && command == "session.goal.get" {
+            write_json(
+                &mut stdout,
+                &json!({
+                    "protocolVersion":GENERATED_ACPX_SIDECAR_PROTOCOL_VERSION,
+                    "id":id,"ok":false,"error":{"message":"provider has exited"}
+                }),
+            )?;
+            continue;
+        }
         if let Some(journal) = admission_journal.as_mut() {
             write_json(journal, &json!({"request":request}))?;
             let response = if command == "tool.resolve" {
@@ -315,6 +326,7 @@ fn run() -> Result<(), Box<dyn std::error::Error>> {
             | "turns-mismatched-reserved-result-terminal"
             | "turns-unauthorized-tool"
             | "turns-permission"
+            | "turns-provider-death"
             | "permissions-forged-origin"
             | "turns-retired"
             | "turns-retired-terminal-first"
@@ -381,6 +393,27 @@ fn run() -> Result<(), Box<dyn std::error::Error>> {
                         .map(|suffix| format!("call-{suffix}"))
                         .unwrap_or_else(|| "call-1".to_owned())
                 };
+                if command == "turn.start" && mode == "turns-provider-death" {
+                    write_turn_event(
+                        &mut stdout,
+                        next_sequence,
+                        "runtime.permission_requested",
+                        "run-1",
+                        turn_id,
+                        json!({"requestId":"dead-input","kind":"edit","title":"Write the file?","choices":[{"key":"accept","label":"Allow once"},{"key":"cancel","label":"Deny"}]}),
+                    )?;
+                    next_sequence += 1;
+                    provider_lost = true;
+                    write_turn_event(
+                        &mut stdout,
+                        next_sequence,
+                        "runtime.turn_terminal",
+                        "run-1",
+                        turn_id,
+                        json!({"status":"failed","error":{"code":"ACPX_PROVIDER_PROCESS_LOST","message":"provider has exited","retryable":false}}),
+                    )?;
+                    next_sequence += 1;
+                }
                 if command == "turn.start" && matches!(mode, "turns" | "turns-wrong-scope") {
                     write_turn_event(
                         &mut stdout,
diff --git a/packages/paperclip-runner/runner/crates/runner-core/src/generated_acpx_profiles.rs b/packages/paperclip-runner/runner/crates/runner-core/src/generated_acpx_profiles.rs
index 28f4d2a775a..dd2ed8962b7 100644
--- a/packages/paperclip-runner/runner/crates/runner-core/src/generated_acpx_profiles.rs
+++ b/packages/paperclip-runner/runner/crates/runner-core/src/generated_acpx_profiles.rs
@@ -47,7 +47,7 @@ pub(crate) fn acpx_release_profile(agent: &str) -> Option<AcpxReleaseProfile> {
             agent_runtime_package: None,
             agent_runtime_version: None,
             command_digest:
-                "sha256:481d0852ae8272a90f9912723d540518a874a0da65a9070e33b52ea1a14cbd7f",
+                "sha256:6dde98a9dbadf22f17ca28f133dbe2a65fa199827741190f569704e44bdc20ed",
             requires_provider_policy: true,
         },
         "claude" => AcpxReleaseProfile {
diff --git a/packages/paperclip-runner/runner/crates/runner-core/tests/native_provider_backend.rs b/packages/paperclip-runner/runner/crates/runner-core/tests/native_provider_backend.rs
index cc94d4834c0..2fb94b988b7 100644
--- a/packages/paperclip-runner/runner/crates/runner-core/tests/native_provider_backend.rs
+++ b/packages/paperclip-runner/runner/crates/runner-core/tests/native_provider_backend.rs
@@ -1023,6 +1023,109 @@ fn routes_reserved_completion_feedback_with_the_full_controller_catalog() {
     fs::remove_dir_all(directory).unwrap();
 }
 
+#[test]
+fn provider_death_expires_input_and_commits_failure_without_querying_the_dead_provider() {
+    let directory = temporary_directory("acpx-provider-death");
+    let mode = "turns-provider-death";
+    let mut config = acpx_config(&directory, mode);
+    let mut payload = prepare_payload_with_mode(&directory, "codex", mode);
+    let identity: Value = serde_json::from_str(include_str!(
+        "../../../../test/fixtures/copilot-profile-v34-identity.json"
+    ))
+    .unwrap();
+    let digest = identity["commandDigest"].as_str().unwrap();
+    *config
+        .acpx_launch_profile
+        .as_mut()
+        .unwrap()
+        .args
+        .last_mut()
+        .unwrap() = digest.to_owned();
+    let provider = &mut payload["provider"];
+    provider["agent"] = json!("copilot");
+    provider["model"] = json!("gpt-5.6-luna");
+    provider["permissionMode"] = json!("approve-paperclip");
+    provider["agentServerPackage"] = json!("@github/copilot");
+    provider["agentServerVersion"] = json!("1.0.88");
+    provider["agentRuntimePackage"] = Value::Null;
+    provider["agentRuntimeVersion"] = Value::Null;
+    provider["providerPolicy"] = json!({"readOnly":false});
+    provider["commandDigest"] = json!(digest);
+    provider["sidecarArgs"][3] = json!(digest);
+    let mut executor = NativeProviderCommandExecutor::with_runner_config(&directory, &config);
+    executor
+        .execute(&command(1, "run.prepare", payload))
+        .unwrap();
+    executor
+        .execute(&command(2, "session.open", json!({})))
+        .unwrap();
+    executor
+        .execute(&command(
+            3,
+            "turn.start",
+            json!({"text":"Write", "turnId":"provider-turn-dead"}),
+        ))
+        .unwrap();
+    let mut events = Vec::new();
+    for _ in 0..20 {
+        let batch = executor.poll_events().unwrap();
+        executor.acknowledge_events(batch.len()).unwrap();
+        events.extend(batch);
+        if events
+            .iter()
+            .any(|event| event.event_type == "run.terminal")
+        {
+            break;
+        }
+        std::thread::sleep(Duration::from_millis(5));
+    }
+    let expired = events
+        .iter()
+        .position(|event| event.event_type == "runtime_request.expired")
+        .unwrap_or_else(|| panic!("provider death did not expire input: {events:?}"));
+    let failed = events
+        .iter()
+        .position(|event| event.event_type == "turn.failed")
+        .unwrap();
+    assert!(expired < failed);
+    assert_eq!(events[expired].payload["reason"], "provider_process_lost");
+    assert_eq!(events[expired].payload["replayAllowed"], false);
+    assert_eq!(
+        events[failed].payload["providerTurnId"],
+        "provider-turn-dead"
+    );
+    assert_eq!(
+        events[failed].payload["error"]["code"],
+        "ACPX_PROVIDER_PROCESS_LOST"
+    );
+    assert_eq!(
+        events
+            .iter()
+            .filter(|event| event.event_type == "turn.failed")
+            .count(),
+        1
+    );
+    let snapshot = executor
+        .execute(&command(4, "session.snapshot", json!({})))
+        .unwrap()
+        .result;
+    assert_eq!(snapshot["status"], "closed");
+    assert_eq!(snapshot["activeProviderTurnId"], Value::Null);
+    assert_eq!(snapshot["warmAttachReady"], false);
+    assert!(executor
+        .execute(&command(
+            5,
+            "turn.start",
+            json!({"text":"Replay", "turnId":"replay-turn"})
+        ))
+        .is_err());
+    executor
+        .execute(&command(6, "session.close", json!({})))
+        .unwrap();
+    shutdown_recovered_acpx_fixture(&mut executor, &directory);
+    fs::remove_dir_all(directory).unwrap();
+}
+
 #[test]
 fn resumes_an_idle_acpx_session_in_a_cold_replacement_runner() {
     let directory = temporary_directory("acpx-cold-idle-recovery");
diff --git a/packages/paperclip-runner/scripts/build-provider-pack.mjs b/packages/paperclip-runner/scripts/build-provider-pack.mjs
index a58e8cb3156..bdf0886af4a 100644
--- a/packages/paperclip-runner/scripts/build-provider-pack.mjs
+++ b/packages/paperclip-runner/scripts/build-provider-pack.mjs
@@ -152,7 +152,15 @@ try {
   mkdirSync(dirname(stableNodeCommand), { recursive: true, mode: 0o755 });
   copyFileSync(process.execPath, stableNodeCommand);
   chmodSync(stableNodeCommand, 0o755);
-  const relocatedNode = spawnSync(stableNodeCommand, ["--version"], {
+  // A freshly copied x64 Mach-O can stall when launched directly from a
+  // translated Node process. Select Rosetta explicitly for this build probe;
+  // native Intel and every other platform still execute the copied bytes directly.
+  const translated = process.platform === "darwin" && process.arch === "x64"
+    && spawnSync("/usr/sbin/sysctl", ["-n", "sysctl.proc_translated"], {
+      encoding: "utf8", timeout: 1_000,
+    }).stdout?.trim() === "1";
+  const relocatedNode = spawnSync(translated ? "/usr/bin/arch" : stableNodeCommand,
+    translated ? ["-x86_64", stableNodeCommand, "--version"] : ["--version"], {
     cwd: temporaryRoot, env: { PATH: "/usr/bin:/bin" }, encoding: "utf8", timeout: buildNodeStartupTimeout(),
   });
   if (relocatedNode.status !== 0 || relocatedNode.stdout.trim() !== `v${process.versions.node}`) {
@@ -167,7 +175,7 @@ try {
       || !/^sha256:[a-f0-9]{64}$/.test(metadata.profileDigest)
       || !/^sha256:[a-f0-9]{64}$/.test(metadata.closureDigest)) throw new Error("Candidate builder omitted its pinned identity");
     candidateProviders[provider] = { version: metadata.version, profileDigest: metadata.profileDigest,
-      closureDigest: metadata.closureDigest, qualification: (provider === "cursor" || provider === "pi") ? "qualified" : "pending", path: assetPath,
+      closureDigest: metadata.closureDigest, qualification: ["pi", "cursor", "copilot"].includes(provider) ? "qualified" : "pending", path: assetPath,
       sha256: sha256Tree(join(temporaryRoot, assetPath)) };
   }
 
diff --git a/packages/paperclip-runner/scripts/candidate-provider-pack.mjs b/packages/paperclip-runner/scripts/candidate-provider-pack.mjs
index cfa2fc13697..00a9d3bb4f5 100644
--- a/packages/paperclip-runner/scripts/candidate-provider-pack.mjs
+++ b/packages/paperclip-runner/scripts/candidate-provider-pack.mjs
@@ -6,14 +6,14 @@ const CANDIDATES = new Set(["cursor", "copilot", "pi"]);
 /** Only materialized providers enter the serialized manifest and its digest. */
 export function providerPackManifestFields(providers, candidates) {
   return {
-    ...(["pi", "cursor"].some(provider => providers[provider]) ? { providers: Object.fromEntries(["pi", "cursor"].filter(provider => providers[provider]).map(provider => [provider, providers[provider]])) } : {}),
-    ...(["pi", ...candidates].some(provider => providers[provider]) ? { candidateProviders: Object.fromEntries([...new Set(["pi", ...candidates])].filter(provider => providers[provider]).map(provider => [provider, providers[provider]])) } : {}),
+    ...(["pi", "cursor", "copilot"].some(provider => providers[provider]) ? { providers: Object.fromEntries(["pi", "cursor", "copilot"].filter(provider => providers[provider]).map(provider => [provider, providers[provider]])) } : {}),
+    ...(["pi", ...candidates].some(provider => provider !== "copilot" && providers[provider]) ? { candidateProviders: Object.fromEntries([...new Set(["pi", ...candidates])].filter(provider => provider !== "copilot" && providers[provider]).map(provider => [provider, providers[provider]])) } : {}),
   };
 }
 
 export function providerPackProviders(platform, architecture, candidates) {
   const nativeSupported = ["darwin-arm64", "darwin-x64", "linux-x64"].includes(`${platform}-${architecture}`);
-  return [...new Set([...(nativeSupported ? ["pi", "cursor"] : []), ...candidates])];
+  return [...new Set([...(nativeSupported ? ["pi", "cursor", "copilot"] : []), ...candidates])];
 }
 
 export function parseProviderPackArguments(args) {
diff --git a/packages/paperclip-runner/scripts/candidate-provider-pack.test.mjs b/packages/paperclip-runner/scripts/candidate-provider-pack.test.mjs
index c11110babae..353b8db6bb1 100644
--- a/packages/paperclip-runner/scripts/candidate-provider-pack.test.mjs
+++ b/packages/paperclip-runner/scripts/candidate-provider-pack.test.mjs
@@ -1,28 +1,44 @@
 import test from "node:test";
 import assert from "node:assert/strict";
 import { parseProviderPackArguments, materializeCandidateProviderPack, providerPackProviders, providerPackManifestFields } from "./candidate-provider-pack.mjs";
+import { createHash } from "node:crypto";
 
-test("candidate options stay explicit and supported native assets are included by default", () => {
+// Matches the canonical manifest hashing used by the builder and admission.
+function digest(value) {
+  const canonical = value => Array.isArray(value) ? `[${value.map(canonical).join(",")}]`
+    : value && typeof value === "object" ? `{${Object.keys(value).sort().map(key => `${JSON.stringify(key)}:${canonical(value[key])}`).join(",")}}`
+    : JSON.stringify(value);
+  return createHash("sha256").update(canonical(value)).digest("hex");
+}
+
+test("provider manifest digest survives disk JSON on supported and unsupported targets", () => {
+  const cursor = { version: "pinned", profileDigest: "sha256:profile", closureDigest: "sha256:closure" };
+  for (const [platform, architecture] of [["darwin", "arm64"], ["darwin", "x64"], ["linux", "x64"], ["linux", "arm64"], ["win32", "x64"]]) {
+    const selected = providerPackProviders(platform, architecture, []);
+    const payload = { target: { platform, architecture }, ...providerPackManifestFields(selected.includes("cursor") ? { cursor } : {}, []) };
+    const diskPayload = JSON.parse(JSON.stringify(payload));
+    assert.deepEqual(diskPayload, payload);
+    assert.equal(digest(diskPayload), digest(payload));
+    assert.equal(diskPayload.providers?.cursor?.version, selected.includes("cursor") ? "pinned" : undefined);
+  }
+  const candidate = providerPackManifestFields({ cursor }, ["cursor"]);
+  assert.deepEqual(candidate.candidateProviders, { cursor });
+  assert.equal(digest(JSON.parse(JSON.stringify(candidate))), digest(candidate));
+});
+
+test("candidate selection is explicit", () => {
   assert.deepEqual(parseProviderPackArguments(["--", "/pack"]), { output: "/pack", candidates: [] });
   assert.deepEqual(parseProviderPackArguments(["/pack", "--candidate-providers=pi,cursor"]), { output: "/pack", candidates: ["pi", "cursor"] });
+});
+test("normal packs include Cursor and Copilot on their three pinned targets without breaking other hosts", () => {
   for (const [platform, architecture] of [["darwin", "arm64"], ["darwin", "x64"], ["linux", "x64"]]) {
-    assert.deepEqual(providerPackProviders(platform, architecture, []), ["pi", "cursor"]);
-    assert.deepEqual(providerPackProviders(platform, architecture, ["cursor", "pi", "copilot"]), ["pi", "cursor", "copilot"]);
+    assert.deepEqual(providerPackProviders(platform, architecture, []), ["pi", "cursor", "copilot"]);
+    assert.deepEqual(providerPackProviders(platform, architecture, ["cursor"]), ["pi", "cursor", "copilot"]);
   }
   assert.deepEqual(providerPackProviders("linux", "arm64", []), []);
   assert.deepEqual(providerPackProviders("win32", "x64", []), []);
   assert.deepEqual(providerPackProviders("linux", "arm64", ["cursor"]), ["cursor"]);
 });
-test("serialized manifests include every materialized qualified provider", () => {
-  const pi = { qualification: "qualified", profileDigest: "pi-digest" };
-  const cursor = { qualification: "qualified", profileDigest: "cursor-digest" };
-  const copilot = { qualification: "pending", profileDigest: "copilot-digest" };
-  assert.deepEqual(providerPackManifestFields({ pi }, []), { providers: { pi }, candidateProviders: { pi } });
-  assert.deepEqual(providerPackManifestFields({ pi, cursor, copilot }, ["copilot"]), {
-    providers: { pi, cursor }, candidateProviders: { pi, copilot },
-  });
-  assert.deepEqual(providerPackManifestFields({}, []), {});
-});
 test("candidate builder cannot admit unknown providers, options or duplicate assets", async () => {
   for (const args of [["--candidate-providers=cursor,cursor"], ["--candidate-providers=other"], ["--executable=/tmp/x"], ["/one", "/two"]]) {
     assert.throws(() => parseProviderPackArguments(args));
@@ -30,6 +46,15 @@ test("candidate builder cannot admit unknown providers, options or duplicate ass
   await assert.rejects(materializeCandidateProviderPack({ provider: "arbitrary", outputRoot: "/tmp/unused" }), /Unknown candidate/);
 });
 
+test("normal Copilot inventory needs no candidate override and has no duplicate candidate", () => {
+  const copilot = { qualification: "qualified", version: "1.0.88" };
+  for (const candidates of [[], ["copilot"]]) {
+    const fields = providerPackManifestFields({ copilot }, candidates);
+    assert.equal(fields.providers.copilot, copilot);
+    assert.equal(fields.candidateProviders?.copilot, undefined);
+    assert.equal(digest(JSON.parse(JSON.stringify(fields))), digest(fields));
+  }
+});
 test("Copilot pack selection reaches only the pinned native archive builder", async t => {
   const requests = [];
   t.mock.method(globalThis, "fetch", async (url, options) => {
diff --git a/packages/paperclip-runner/scripts/copilot-profile-identity.mjs b/packages/paperclip-runner/scripts/copilot-profile-identity.mjs
new file mode 100644
index 00000000000..3b932b141be
--- /dev/null
+++ b/packages/paperclip-runner/scripts/copilot-profile-identity.mjs
@@ -0,0 +1,106 @@
+// Regenerate after changing any bound implementation; live qualification must
+// restart whenever the resulting identity changes. Historical identities remain.
+import { createHash } from "node:crypto";
+import { execFileSync } from "node:child_process";
+import { readFileSync, writeFileSync } from "node:fs";
+import { fileURLToPath } from "node:url";
+import { resolve, dirname } from "node:path";
+
+const root = resolve(dirname(fileURLToPath(import.meta.url)), "..");
+const fixture = resolve(root, "test/fixtures/copilot-profile-v34-identity.json");
+const historical = JSON.parse(readFileSync(resolve(root, "test/fixtures/copilot-profile-v12-identity.json"), "utf8"));
+const declaration = { ...historical.declaration, agentProfileVersion: 34 };
+delete declaration.permissionIdentitySourceSha256;
+const sources = {
+  displayEventSourceSha256: "src/drivers/acpx/copilot-events.ts",
+  displayProjectionSourceSha256: "src/drivers/acpx/copilot-extension-adapter.ts",
+  configuredEnvironmentSourceSha256: "src/configured-environment.ts",
+  configuredEnvironmentRustSourceSha256: "runner/crates/runner-core/src/configured_environment.rs",
+  profileActivitySourceSha256: "src/drivers/acpx/profile-activity.ts",
+  profileExtensionsSourceSha256: "src/drivers/acpx/profile-extensions.ts",
+  profileInstallationSourceSha256: "src/drivers/acpx/profile-installation.ts",
+  attachmentPolicySourceSha256: "runner/crates/runner-core/src/acpx_provider_capabilities.rs",
+  singleReadEvidenceSourceSha256: "src/drivers/acpx/single-read-evidence.ts",
+  nativeSessionRuntimeSourceSha256: "src/native-session-runtime.ts",
+  nativeRuntimeContextSourceSha256: "src/contracts/runtime-context.ts",
+  nativeSessionContractSourceSha256: "src/contracts/native-session-backend.ts",
+  harnessSessionContractSourceSha256: "src/contracts/harness-driver.ts",
+  harnessBackendSourceSha256: "src/backends/harness-driver-backend.ts",
+  harnessSessionSourceSha256: "src/drivers/codex/codex-harness-session.ts",
+  transportContractSourceSha256: "src/drivers/codex/app-server-transport.ts",
+  nativeBackendSourceSha256: "src/backends/codex-native-backend.ts",
+  nativeBackendFactorySourceSha256: "src/backends/native-backend-factory.ts",
+  nativeInstructionsSourceSha256: "src/backends/runtime-context.ts",
+  runtimeRequestBridgeSourceSha256: "src/live/runnerd-codex-transport.ts",
+  runtimeRequestFacadeSourceSha256: "src/drivers/codex/codex-session-notifications.ts",
+  runtimeRequestNotificationSourceSha256: "src/drivers/codex/codex-thread-normalization.ts",
+  guardedInstallationSourceSha256: "src/drivers/acpx/installation-integrity.ts",
+  nativeExecutionSourceSha256: "src/contracts/native-execution.ts",
+  profileCompatibilitySourceSha256: "src/drivers/acpx/profile-compatibility.ts",
+  installationSourceSha256: "src/drivers/acpx/copilot-installation.ts",
+  assetOwnershipSourceSha256: "src/drivers/acpx/provider-assets-root.ts",
+  assetInstallerSourceSha256: "scripts/install-copilot-assets.mjs",
+  credentialBindingSourceSha256: "src/drivers/acpx/environment.ts",
+  sidecarErrorSourceSha256: "src/cli/acpx-sidecar-input.ts",
+  profileSourceSha256: "src/drivers/acpx/copilot-profile.ts",
+  metadataProbeSourceSha256: "src/drivers/copilot-metadata-probe.ts",
+  acpxPatchSha256: "../../patches/acpx@0.13.1.patch",
+  policySha256: "src/drivers/acpx/copilot-policy.ts",
+  distributionSourceSha256: "scripts/materialize-copilot-binary.mjs",
+  innerDistributionSourceSha256: "scripts/copilot-inner-distribution.mjs",
+  permissionContextSourceSha256: "src/drivers/acpx/copilot-permission-context.ts",
+  permissionAdapterSourceSha256: "src/drivers/acpx/acp-permission-adapter.ts",
+  permissionToolIdentitySourceSha256: "src/drivers/acpx/cursor-plan-tool-identity.ts",
+  permissionLocationsSourceSha256: "src/drivers/acpx/safe-locations.ts",
+  permissionRedactionSourceSha256: "src/semantic-tools/redaction.ts",
+  permissionClassifierSourceSha256: "src/drivers/acpx/generated-sidecar-contract.ts",
+  semanticReceiptSourceSha256: "src/drivers/semantic-tool-receipt.ts",
+  semanticBridgeSourceSha256: "src/drivers/runner-tool-bridge.ts",
+  toolEvidenceSourceSha256: "src/drivers/acpx/copilot-tool-evidence.ts",
+  semanticSidecarSourceSha256: "src/cli/acpx-runtime-sidecar.ts",
+  semanticDirectDriverSourceSha256: "src/drivers/acpx/codex-acpx-driver.ts",
+  semanticValidationSourceSha256: "src/protocol/replay-contract.ts",
+  semanticNormalizationSourceSha256: "src/protocol/result-normalization.ts",
+  semanticCompletionContractSourceSha256: "src/contracts/completion-result.ts",
+  semanticValidatorsSourceSha256: "src/protocol/generated/standalone-validators.ts",
+  semanticSchemaBundleSourceSha256: "src/protocol/generated/schema-bundle.ts",
+  semanticSidecarProtocolSourceSha256: "src/drivers/acpx/sidecar-protocol.ts",
+  runtimeHostSourceSha256: "src/drivers/acpx/runtime-host.ts",
+  runtimeAdapterSourceSha256: "src/drivers/acpx/codex-runtime-adapter.ts",
+  runtimeSandboxSourceSha256: "src/drivers/acpx/runtime-sandbox.ts",
+  cancellationSourceSha256: "src/drivers/acpx/turn-cancellation.ts",
+  agentFilesSourceSha256: "src/drivers/acpx/agent-files-binding.ts",
+  nativeDistributionSourceSha256: "src/drivers/acpx/native-distribution-integrity.ts",
+};
+for (const [field, path] of Object.entries(sources)) {
+  declaration[field] = createHash("sha256").update(readFileSync(resolve(root, path))).digest("hex");
+}
+const sorted = Object.fromEntries(Object.entries(declaration).sort(([a], [b]) => a.localeCompare(b)));
+const commandDigest = `sha256:${createHash("sha256").update(JSON.stringify(sorted)).digest("hex")}`;
+const identity = `${JSON.stringify({ commandDigest, declaration }, null, 2)}\n`;
+// The shared manifest now generates both TypeScript and Rust admission. Update
+// only Copilot; other providers retain their upstream release attestations.
+const manifestPath = resolve(root, "acpx-profiles.json");
+const manifest = JSON.parse(readFileSync(manifestPath, "utf8"));
+if (process.argv.includes("--check")) {
+  if (manifest.profiles.copilot.commandDigest !== commandDigest
+    || manifest.profiles.copilot.agentProfileVersion !== declaration.agentProfileVersion) {
+    throw new Error("Copilot identity is stale in acpx-profiles.json");
+  }
+} else {
+  manifest.profiles.copilot.commandDigest = commandDigest;
+  manifest.profiles.copilot.agentProfileVersion = declaration.agentProfileVersion;
+  writeFileSync(manifestPath, `${JSON.stringify(manifest, null, 2)}\n`);
+}
+// The builder reads the active manifest; no duplicate digest literal is allowed.
+const distributionSource = readFileSync(resolve(root, "scripts/build-copilot-distribution.mjs"), "utf8");
+if (!distributionSource.includes("profiles.profiles.copilot.commandDigest")) {
+  throw new Error("Copilot distribution builder must use the active manifest identity");
+}
+// The shared generator validates this exact attestation before emitting admission.
+if (process.argv.includes("--check")) {
+  if (readFileSync(fixture, "utf8") !== identity) throw new Error("Copilot source identity is stale");
+} else writeFileSync(fixture, identity);
+execFileSync(process.execPath, [resolve(root, "scripts/generate-acpx-profiles.mjs"),
+  ...(process.argv.includes("--check") ? ["--check"] : [])], { stdio: "inherit" });
+console.log(commandDigest);
diff --git a/packages/paperclip-runner/scripts/copilot-smoke-resources.mjs b/packages/paperclip-runner/scripts/copilot-smoke-resources.mjs
index 403603ad945..c08749f7677 100644
--- a/packages/paperclip-runner/scripts/copilot-smoke-resources.mjs
+++ b/packages/paperclip-runner/scripts/copilot-smoke-resources.mjs
@@ -35,3 +35,25 @@ export async function withCopilotSmokeResources(installation, callback, dependen
     }
   }
 }
+
+/** Confirm this smoke-owned provider exits, even when it ignores SIGTERM. */
+export async function stopCopilotSmokeChild(child, { terminateTimeoutMs = 5_000, killTimeoutMs = 5_000 } = {}) {
+  if (!child || child.exitCode !== null || child.signalCode !== null) return;
+  const exited = once(child, "exit");
+  child.stdin?.end();
+  child.kill("SIGTERM");
+  try { await boundedExit(exited, terminateTimeoutMs); }
+  catch (error) {
+    if (child.exitCode !== null || child.signalCode !== null) throw error;
+    child.kill("SIGKILL");
+    await boundedExit(exited, killTimeoutMs);
+  }
+}
+async function boundedExit(exited, timeoutMs) {
+  let timer;
+  try {
+    await Promise.race([exited, new Promise((_, reject) => {
+      timer = setTimeout(() => reject(new Error("Copilot smoke cleanup was not confirmed")), timeoutMs);
+    })]);
+  } finally { clearTimeout(timer); }
+}
diff --git a/packages/paperclip-runner/scripts/copilot-smoke-resources.test.mjs b/packages/paperclip-runner/scripts/copilot-smoke-resources.test.mjs
index 5ba83bb3200..45a2670bd8a 100644
--- a/packages/paperclip-runner/scripts/copilot-smoke-resources.test.mjs
+++ b/packages/paperclip-runner/scripts/copilot-smoke-resources.test.mjs
@@ -1,7 +1,7 @@
 import assert from "node:assert/strict";
 import { EventEmitter } from "node:events";
 import test from "node:test";
-import { withCopilotSmokeResources } from "./copilot-smoke-resources.mjs";
+import { stopCopilotSmokeChild, withCopilotSmokeResources } from "./copilot-smoke-resources.mjs";
 
 function resources(failure) {
   const actions = [];
@@ -41,3 +41,19 @@ test("successful callback result is returned after all resource cleanup", async
   assert.equal(await withCopilotSmokeResources(r.installation, async ({ root, fixtureRequests }) => { assert.equal(root, "/fixture/private"); assert.deepEqual(fixtureRequests, []); return "ok"; }, r.dependencies), "ok");
   assert.deepEqual(r.actions, ["workspace_created", "connections_closed", "server_closed", "lease_closed", "workspace_removed"]);
 });
+
+test("ignored SIGTERM is followed by bounded SIGKILL and confirmed process exit", async () => {
+  const { spawn } = await import("node:child_process");
+  const { once } = await import("node:events");
+  const child = spawn(process.execPath, ["-e", 'process.on("SIGTERM", () => {}); process.send("ready"); setInterval(() => {}, 1000);'], { stdio: ["pipe", "pipe", "pipe", "ipc"] });
+  try {
+    await Promise.race([once(child, "message"), new Promise((_, reject) => setTimeout(() => reject(new Error("child readiness timed out")), 3_000).unref())]);
+    await stopCopilotSmokeChild(child, { terminateTimeoutMs: 50, killTimeoutMs: 1_000 });
+    assert.equal(child.signalCode, "SIGKILL");
+    assert.throws(() => process.kill(child.pid, 0), { code: "ESRCH" });
+  } finally {
+    if (child.exitCode === null && child.signalCode === null) {
+      const exited = once(child, "exit"); child.kill("SIGKILL"); await exited;
+    }
+  }
+});
diff --git a/packages/paperclip-runner/scripts/discover-copilot-acp.mjs b/packages/paperclip-runner/scripts/discover-copilot-acp.mjs
index dc0b1fc5feb..3cbfc825d13 100644
--- a/packages/paperclip-runner/scripts/discover-copilot-acp.mjs
+++ b/packages/paperclip-runner/scripts/discover-copilot-acp.mjs
@@ -1,3 +1,4 @@
+import { StringDecoder } from "node:string_decoder";
 // Metadata only. Supply an explicit token; this closed protocol client never prompts.
 // Usage: node discover-copilot-acp.mjs <verified-pack> <safe-output.json> [exact-model-id]
 import assert from "node:assert/strict";
@@ -24,6 +25,7 @@ export async function withDiscoveryWorkspace(install, callback, filesystem = { m
 }
 
 export function createDiscoveryRpc(child, { deadlineMs = 25_000, maxBytes = 2_097_152 } = {}) {
+  const decoder = new StringDecoder("utf8");
   const pending = new Map(), observedMethods = {};
   let nextId = 0, buffer = "", bytes = 0, failure;
   function fail(code) {
@@ -39,7 +41,7 @@ export function createDiscoveryRpc(child, { deadlineMs = 25_000, maxBytes = 2_09
   child.stdout.on("data", chunk => {
     bytes += chunk.length;
     if (bytes > maxBytes) { fatal("provider_wire_limit"); return; }
-    buffer += chunk.toString();
+    buffer += decoder.write(chunk);
     while (buffer.includes("\n")) {
       const end = buffer.indexOf("\n"), line = buffer.slice(0, end); buffer = buffer.slice(end + 1);
       if (!line.trim()) continue;
diff --git a/packages/paperclip-runner/scripts/discover-copilot-acp.test.mjs b/packages/paperclip-runner/scripts/discover-copilot-acp.test.mjs
index d33b2817006..b8602fe6560 100644
--- a/packages/paperclip-runner/scripts/discover-copilot-acp.test.mjs
+++ b/packages/paperclip-runner/scripts/discover-copilot-acp.test.mjs
@@ -38,3 +38,12 @@ test("closed discovery protocol preserves numeric zero and rejects prompts", asy
   assert.deepEqual(await pending, { protocolVersion: 1 });
   assert.throws(() => rpc.request("session/prompt", {}), /cannot send/); rpc.close();
 });
+
+test("discovery preserves multibyte model names when every byte arrives separately", async () => {
+  const child = childFixture(), rpc = createDiscoveryRpc(child);
+  const result = { models: { availableModels: [{ modelId: "gpt-5.6-luna", name: "東京 🚀 café" }] } };
+  const pending = rpc.request("session/new", {});
+  const wire = Buffer.from(`${JSON.stringify({ jsonrpc: "2.0", id: 0, result })}\n`);
+  for (const byte of wire) child.stdout.emit("data", Buffer.from([byte]));
+  assert.deepEqual(await pending, result); rpc.close();
+});
diff --git a/packages/paperclip-runner/scripts/generate-acpx-profiles.mjs b/packages/paperclip-runner/scripts/generate-acpx-profiles.mjs
index afdd2013b65..38322261173 100644
--- a/packages/paperclip-runner/scripts/generate-acpx-profiles.mjs
+++ b/packages/paperclip-runner/scripts/generate-acpx-profiles.mjs
@@ -39,7 +39,7 @@ const { commandDigest, ...attestation } = contract;
 assert.equal(commandDigest, `sha256:${createHash("sha256").update(canonicalJson(attestation)).digest("hex")}`);
 assert.equal(contract.acpxPatchSha256, createHash("sha256")
   .update(await readFile(new URL("../../patches/acpx@0.13.1.patch", root))).digest("hex"));
-for (const [agent, path] of [["pi", "test-fixtures/pi-acp/profile-v22-identity.json"], ["copilot", "test/fixtures/copilot-profile-v17-identity.json"]]) {
+for (const [agent, path] of [["pi", "test-fixtures/pi-acp/profile-v22-identity.json"], ["copilot", "test/fixtures/copilot-profile-v34-identity.json"]]) {
   const identity = await readJson(path);
   assert.equal(manifest.profiles[agent].agentProfileVersion, identity.declaration.agentProfileVersion);
   assert.equal(manifest.profiles[agent].commandDigest, identity.commandDigest);
diff --git a/packages/paperclip-runner/scripts/install-copilot-assets.mjs b/packages/paperclip-runner/scripts/install-copilot-assets.mjs
new file mode 100644
index 00000000000..5ccd71702fd
--- /dev/null
+++ b/packages/paperclip-runner/scripts/install-copilot-assets.mjs
@@ -0,0 +1,94 @@
+import { access, lstat, mkdir, readFile, realpath, rmdir } from "node:fs/promises";
+import { dirname, join, resolve } from "node:path";
+import { createRequire } from "node:module";
+import { fileURLToPath, pathToFileURL } from "node:url";
+import { COPILOT_DISTRIBUTIONS, materializePinnedCopilotBinary } from "./materialize-copilot-binary.mjs";
+
+const packageRoot = await realpath(fileURLToPath(new URL("../", import.meta.url)));
+const owner = JSON.parse(await readFile(join(packageRoot, "package.json"), "utf8"));
+if (!["@paperclipai/paperclip-runner", "@paperclipai/server"].includes(owner.name)) {
+  throw new Error("Copilot installer must belong to a runner package owner");
+}
+const vendored = owner.name === "@paperclipai/server";
+const runtimeRoot = vendored ? join(packageRoot, "dist/vendor/paperclip-runner") : join(packageRoot, "dist");
+
+/** Install only the native npm package for this platform; never execute it. */
+export async function installCopilotAssets() {
+  const { platform, arch: architecture } = process;
+  const target = `${platform}-${architecture}`;
+  if (!Object.prototype.hasOwnProperty.call(COPILOT_DISTRIBUTIONS, target)) {
+    return { status: "unsupported-platform", target };
+  }
+  const verifierPath = join(runtimeRoot, "drivers/acpx/copilot-installation.js");
+  try { await access(verifierPath); }
+  catch (error) {
+    if (error.code !== "ENOENT") throw error;
+    // A source workspace installs dependencies before it compiles the verifier.
+    // Published packages exclude src, so a malformed npm artifact cannot use
+    // this path. build:typescript performs installation after compilation.
+    await access(join(packageRoot, vendored ? "src/services/copilot-connection-probe.ts" : "src/drivers/acpx/copilot-installation.ts"));
+    await access(resolve(packageRoot, vendored ? "../pnpm-workspace.yaml" : "../../pnpm-workspace.yaml"));
+    return { status: "source-workspace-pending-build", target };
+  }
+  const assets = join(packageRoot, "provider-assets", "copilot");
+  for (const directory of [dirname(assets), assets]) {
+    await mkdir(directory, { recursive: true, mode: 0o755 });
+    const stat = await lstat(directory);
+    if (!stat.isDirectory() || stat.isSymbolicLink() || await realpath(directory) !== directory) {
+      throw new Error("Copilot install directory must not redirect through links");
+    }
+  }
+  const destination = join(assets, target);
+  const originalRoot = process.env.PAPERCLIP_ACPX_PROVIDER_PACKAGE_ROOT;
+  const originalManifest = process.env.PAPERCLIP_ACPX_PROVIDER_PACKAGE_MANIFEST;
+  process.env.PAPERCLIP_ACPX_PROVIDER_PACKAGE_ROOT = packageRoot;
+  process.env.PAPERCLIP_ACPX_PROVIDER_PACKAGE_MANIFEST = join(packageRoot, "package.json");
+  try {
+    const { COPILOT_CLOSURE_SHA256, verifyCopilotInstallation } = await import(pathToFileURL(join(runtimeRoot, "drivers/acpx/copilot-installation.js")));
+    const { QUALIFIED_ACPX_PROFILES } = await import(pathToFileURL(join(runtimeRoot, "drivers/acpx/qualified-profiles.js")));
+    const verify = () => verifyCopilotInstallation(QUALIFIED_ACPX_PROFILES.copilot);
+    try { await mkdir(destination, { mode: 0o755 }); }
+    catch (error) {
+      if (error.code !== "EEXIST") throw error;
+      const stat = await lstat(destination);
+      if (!stat.isDirectory() || stat.isSymbolicLink() || await realpath(destination) !== destination) {
+        throw new Error("Copilot installed assets must not redirect through links");
+      }
+      await verify();
+      return { status: "verified-existing", target };
+    }
+    const ownedDirectory = await lstat(destination, { bigint: true });
+    try {
+      // Official native packages export their executable, not package.json.
+      // Resolve that path without loading or executing the native module.
+      const nativePackageRoot = dirname(createRequire(import.meta.url).resolve(COPILOT_DISTRIBUTIONS[target].packageName));
+      const materialized = materializePinnedCopilotBinary({ packageRoot: nativePackageRoot, platform, architecture, targetDirectory: destination });
+      if (materialized.closureSha256 !== COPILOT_CLOSURE_SHA256[target]) {
+        throw new Error("Copilot installation differs from the runtime closure pin");
+      }
+      await verify();
+      return { status: "installed", target };
+    } catch (error) {
+      // The materializer rolls back only files it created. Remove this newly
+      // created directory only if it is now empty; retain foreign files or
+      // failed verification evidence rather than deleting a directory tree.
+      try {
+        const current = await lstat(destination, { bigint: true });
+        if (current.isDirectory() && !current.isSymbolicLink() && current.dev === ownedDirectory.dev && current.ino === ownedDirectory.ino) await rmdir(destination);
+      }
+      catch (cleanupError) { if (!["ENOENT", "ENOTEMPTY", "EEXIST"].includes(cleanupError.code)) throw new AggregateError([error, cleanupError], "Copilot install and empty-directory cleanup failed"); }
+      throw error;
+    }
+  } finally {
+    for (const [key, value] of [["PAPERCLIP_ACPX_PROVIDER_PACKAGE_ROOT", originalRoot], ["PAPERCLIP_ACPX_PROVIDER_PACKAGE_MANIFEST", originalManifest]]) {
+      if (value === undefined) delete process.env[key];
+      else process.env[key] = value;
+    }
+  }
+}
+
+const invokedPath = process.argv[1] ? await realpath(resolve(process.argv[1])) : null;
+if (invokedPath && import.meta.url === pathToFileURL(invokedPath).href) {
+  const result = await installCopilotAssets();
+  process.stdout.write(`Copilot runtime assets: ${result.status} (${result.target})\n`);
+}
diff --git a/packages/paperclip-runner/scripts/install-copilot-assets.test.mjs b/packages/paperclip-runner/scripts/install-copilot-assets.test.mjs
new file mode 100644
index 00000000000..d437fea01bb
--- /dev/null
+++ b/packages/paperclip-runner/scripts/install-copilot-assets.test.mjs
@@ -0,0 +1,114 @@
+import assert from "node:assert/strict";
+import { spawnSync } from "node:child_process";
+import { cp, mkdir, mkdtemp, readFile, realpath, rename, rm, symlink, writeFile } from "node:fs/promises";
+import { createRequire } from "node:module";
+import { tmpdir } from "node:os";
+import { dirname, join } from "node:path";
+import { fileURLToPath } from "node:url";
+import test from "node:test";
+import { build } from "esbuild";
+import { COPILOT_DISTRIBUTIONS } from "./materialize-copilot-binary.mjs";
+
+const runnerRoot = fileURLToPath(new URL("../", import.meta.url));
+const serverRoot = fileURLToPath(new URL("../../../server/", import.meta.url));
+const target = `${process.platform}-${process.arch}`;
+const distribution = COPILOT_DISTRIBUTIONS[target];
+const require = createRequire(import.meta.url);
+const helpers = ["install-copilot-assets.mjs", "materialize-copilot-binary.mjs", "copilot-inner-distribution.mjs"];
+
+function invoke(script) {
+  return spawnSync(process.execPath, [script], {
+    env: { PATH: `${dirname(process.execPath)}:/usr/bin:/bin`, TMPDIR: tmpdir() },
+    encoding: "utf8", timeout: 120_000, maxBuffer: 64 * 1024,
+  });
+}
+
+function succeeded(result, status) {
+  assert.equal(result.error, undefined);
+  assert.equal(result.status, 0, result.stderr);
+  assert.match(result.stdout, new RegExp(status));
+}
+
+for (const owner of ["runner", "server"]) {
+  test(`fresh ${owner} package installs verified assets without a workspace or qualification override`, {
+    skip: !distribution && "Copilot does not advertise this platform", timeout: 180_000,
+  }, async () => {
+    const root = await realpath(await mkdtemp(join(tmpdir(), "copilot-install-package-")));
+    try {
+      const native = dirname(require.resolve(distribution.packageName));
+      await mkdir(join(root, "node_modules/@github"), { recursive: true });
+      await symlink(native, join(root, "node_modules", distribution.packageName), "dir");
+      await writeFile(join(root, "package.json"), JSON.stringify({
+        name: owner === "server" ? "@paperclipai/server" : "@paperclipai/paperclip-runner", type: "module",
+      }));
+      const runtimeRoot = owner === "server" ? join(root, "dist/vendor/paperclip-runner") : join(root, "dist");
+      // Compile the actual installation closure into a published package layout.
+      // A clean static-check checkout has no prebuilt dist directory.
+      await build({
+        entryPoints: [join(runnerRoot, "src/drivers/acpx/copilot-installation.ts"),
+          join(runnerRoot, "src/drivers/acpx/qualified-profiles.ts")],
+        outbase: join(runnerRoot, "src"), outdir: runtimeRoot,
+        bundle: true, platform: "node", format: "esm", target: "node24",
+        logLevel: "silent",
+      });
+      if (owner === "server") {
+        // The public server owns a compiled sidecar beside the vendored verifier.
+        // This installer fixture does not execute the sidecar.
+        await mkdir(join(runtimeRoot, "cli"), { recursive: true });
+        await writeFile(join(runtimeRoot, "cli/acpx-runtime-sidecar.cjs"), "// installer fixture sidecar\n");
+      }
+      const scriptRoot = owner === "server" ? join(root, "dist") : join(root, "scripts");
+      await mkdir(scriptRoot, { recursive: true });
+      for (const name of helpers) await cp(join(runnerRoot, "scripts", name), join(scriptRoot, name));
+      let installer = join(scriptRoot, "install-copilot-assets.mjs");
+      if (owner === "server") {
+        await mkdir(join(root, "scripts"));
+        installer = join(root, "scripts/install-copilot-assets.mjs");
+        await cp(join(serverRoot, "scripts/install-copilot-assets.mjs"), installer);
+      }
+      succeeded(invoke(installer), "installed");
+      succeeded(invoke(installer), "verified-existing");
+      const assets = join(root, "provider-assets");
+      const closure = join(assets, "copilot", target, ".paperclip-copilot-closure.json");
+      const original = await readFile(closure);
+      const corrupted = JSON.parse(original.toString());
+      corrupted.entries[0].sha256 = "0".repeat(64);
+      await writeFile(closure, JSON.stringify(corrupted));
+      const failure = invoke(installer);
+      assert.notEqual(failure.status, 0);
+      assert.match(failure.stderr, /COPILOT_INSTALLATION_INVALID/);
+      assert.notDeepEqual(await readFile(closure), original, "failed verification must retain its evidence");
+      await writeFile(closure, original);
+      succeeded(invoke(installer), "verified-existing");
+      const retained = join(root, "retained-assets");
+      const outside = join(root, "outside");
+      await mkdir(outside);
+      await rename(assets, retained);
+      await symlink(outside, assets, "dir");
+      const linked = invoke(installer);
+      assert.notEqual(linked.status, 0);
+      assert.match(linked.stderr, /must not redirect through links/);
+      await assert.rejects(readFile(join(outside, "copilot", target, "copilot")), { code: "ENOENT" });
+      await rm(assets);
+      await rename(retained, assets);
+      succeeded(invoke(installer), "verified-existing");
+    } finally { await rm(root, { recursive: true, force: true }); }
+  });
+}
+
+test("an unbuilt source workspace defers installation; a published package with missing build output fails", async () => {
+  const root = await realpath(await mkdtemp(join(tmpdir(), "copilot-install-bootstrap-")));
+  try {
+    const server = join(root, "server");
+    await mkdir(join(server, "scripts"), { recursive: true });
+    const script = join(server, "scripts/install-copilot-assets.mjs");
+    await cp(join(serverRoot, "scripts/install-copilot-assets.mjs"), script);
+    assert.notEqual(invoke(script).status, 0);
+    await mkdir(join(server, "src/services"), { recursive: true });
+    await writeFile(join(server, "src/services/copilot-connection-probe.ts"), "// source workspace\n");
+    assert.notEqual(invoke(script).status, 0);
+    await writeFile(join(root, "pnpm-workspace.yaml"), "packages: [server]\n");
+    succeeded(invoke(script), "source-workspace-pending-build");
+    await assert.rejects(readFile(join(server, "provider-assets/copilot", target, "copilot")), { code: "ENOENT" });
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
diff --git a/packages/paperclip-runner/scripts/qualify-copilot-acp.mjs b/packages/paperclip-runner/scripts/qualify-copilot-acp.mjs
index cbc9d3f370d..c5cbaf13caa 100644
--- a/packages/paperclip-runner/scripts/qualify-copilot-acp.mjs
+++ b/packages/paperclip-runner/scripts/qualify-copilot-acp.mjs
@@ -1,3 +1,4 @@
+import { StringDecoder } from "node:string_decoder";
 // Real-service qualification only. One explicit scenario sends one ACP prompt.
 // Usage: node qualify-copilot-acp.mjs <verified-pack> <private-output.json> <deny-write|detached-shell>
 // Bind only COPILOT_GITHUB_TOKEN. Do not run without a reconciled billing reservation.
@@ -62,134 +63,139 @@ export async function runProbe(packInput, output, scenario, token) {
     finally { await lease.close(); }
     throw error;
   }
-  const marker = join(root, "qualification-marker.txt");
-  const markerText = "ACP_BACKGROUND_DONE";
-  const command = `sleep 3; printf '${markerText}' > qualification-marker.txt`;
-  const start = performance.now();
-  const elapsed = () => Math.round(performance.now() - start);
-  const evidence = { schema: "paperclip.copilot-live-risk-probe/v1", scenario, model, sourceRevision: manifest.payload.runnerSourceRevision,
-    providerPackDigest: manifest.digest, profileDigest: install.commandDigest, promptRequestsSent: 0, upstreamModelRequestCount: null,
-    providerReportedCostUsd: null, qualificationStatus: "pending", activeTurnDeadlineSeconds: 120, outerDeadlineSeconds: 180,
-    automaticRetries: 0, permissions: [], markerSamples: [], wire: [], detachedToolObserved: false,
-    backgroundCompletionObservedBeforeTerminal: false, cleanupComplete: false };
-  let child, exitPromise, sessionId, promptId, nextId = 0, buffer = "", bytes = 0, terminalSeen = false;
-  let outerTimer, markerTimer;
-  const pending = new Map();
-  const env = { PATH: "/usr/bin:/bin", COPILOT_GITHUB_TOKEN: token, COPILOT_AUTO_UPDATE: "false", COPILOT_ALLOW_ALL: "false", NO_COLOR: "1" };
-  async function sampleMarker(phase) {
-    let content;
-    try { content = await readFile(marker, "utf8"); } catch (error) { if (error.code !== "ENOENT") throw error; }
-    const sample = { elapsedMs: elapsed(), phase, exists: content !== undefined, matches: content === markerText };
-    evidence.markerSamples.push(sample);
-    return sample;
-  }
-  function failPending(code) {
-    for (const entry of pending.values()) { clearTimeout(entry.timer); entry.reject(new Error(code)); }
-    pending.clear();
-  }
-  const onShutdown = () => { evidence.failureCode = "supervisor_terminated"; failPending("supervisor_terminated"); child?.kill("SIGTERM"); };
-  process.once("SIGTERM", onShutdown); process.once("SIGINT", onShutdown);
-  function send(message) { child.stdin.write(`${JSON.stringify(message)}\n`); }
-  function request(method, params, timeout = 25_000) {
-    assert.ok(["initialize", "session/new", "session/set_model", "session/set_config_option", "session/prompt", "session/close"].includes(method));
-    const id = nextId++;
-    if (method === "session/prompt") promptId = id;
-    return new Promise((resolve, reject) => {
-      const timer = setTimeout(() => { pending.delete(id); reject(new Error(`request_deadline:${method}`)); }, timeout);
-      pending.set(id, { resolve, reject, timer }); send({ jsonrpc: "2.0", id, method, params });
-    });
-  }
   try {
-    for (const key of ["HOME", "XDG_CONFIG_HOME", "XDG_DATA_HOME", "XDG_CACHE_HOME", "COPILOT_HOME", "COPILOT_CACHE_HOME"]) {
-      env[key] = join(root, key.toLowerCase()); await mkdir(env[key], { mode: 0o700 });
+    const marker = join(root, "qualification-marker.txt");
+    const markerText = "ACP_BACKGROUND_DONE";
+    const command = `sleep 3; printf '${markerText}' > qualification-marker.txt`;
+    const start = performance.now();
+    const elapsed = () => Math.round(performance.now() - start);
+    const evidence = { schema: "paperclip.copilot-live-risk-probe/v1", scenario, model, sourceRevision: manifest.payload.runnerSourceRevision,
+      providerPackDigest: manifest.digest, profileDigest: install.commandDigest, promptRequestsSent: 0, upstreamModelRequestCount: null,
+      providerReportedCostUsd: null, qualificationStatus: "pending", activeTurnDeadlineSeconds: 120, outerDeadlineSeconds: 180,
+      automaticRetries: 0, permissions: [], markerSamples: [], wire: [], detachedToolObserved: false,
+      backgroundCompletionObservedBeforeTerminal: false, cleanupComplete: false };
+    let child, exitPromise, sessionId, promptId, nextId = 0, buffer = "", bytes = 0, terminalSeen = false;
+    let outerTimer, markerTimer;
+    const decoder = new StringDecoder("utf8");
+    const pending = new Map();
+    const env = { PATH: "/usr/bin:/bin", COPILOT_GITHUB_TOKEN: token, COPILOT_AUTO_UPDATE: "false", COPILOT_ALLOW_ALL: "false", NO_COLOR: "1" };
+    async function sampleMarker(phase) {
+      let content;
+      try { content = await readFile(marker, "utf8"); } catch (error) { if (error.code !== "ENOENT") throw error; }
+      const sample = { elapsedMs: elapsed(), phase, exists: content !== undefined, matches: content === markerText };
+      evidence.markerSamples.push(sample);
+      return sample;
     }
-    await writeFile(join(env.COPILOT_HOME, "config.json"), JSON.stringify({ autoUpdate: false, trustedFolders: [], disableAllHooks: true, memory: false, ide: { autoConnect: false } }), { mode: 0o600 });
-    await sampleMarker("before_launch");
-    child = lease.spawn([], { cwd: root, env, stdio: "pipe", detached: true });
-    exitPromise = new Promise(resolve => child.once("close", (code, signal) => { failPending("provider_exited"); resolve({ code, signal }); }));
-    outerTimer = setTimeout(() => { failPending("outer_deadline"); child.kill("SIGTERM"); }, 180_000);
-    child.once("error", () => failPending("provider_spawn_failure"));
-    child.stdin.on("error", () => failPending("provider_stdin_failure"));
-    child.stderr.on("data", () => {});
-    child.stdout.on("data", chunk => {
-      bytes += chunk.length;
-      if (bytes > 8_388_608) { failPending("wire_limit"); child.kill("SIGTERM"); return; }
-      buffer += chunk.toString();
-      while (buffer.includes("\n")) {
-        const index = buffer.indexOf("\n"), line = buffer.slice(0, index); buffer = buffer.slice(index + 1);
-        if (!line.trim()) continue;
-        let message;
-        try { message = JSON.parse(line); } catch { failPending("malformed_json"); child.kill("SIGTERM"); return; }
-        if (!message || typeof message !== "object" || Array.isArray(message)) { failPending("malformed_message"); child.kill("SIGTERM"); return; }
-        evidence.wire.push({ elapsedMs: elapsed(), message });
-        if (message.method) {
-          const params = message.params;
-          if (message.method === "session/request_permission" && message.id !== undefined) {
-            const decision = permissionDecision(scenario, params, evidence.promptRequestsSent === 1 && !terminalSeen ? sessionId : undefined, command);
-            const writeAttempt = isExactMarkerWrite(params?.toolCall, marker);
-            evidence.permissions.push({ elapsedMs: elapsed(), requestId: message.id, offeredOptions: params.options, ...decision, writeAttempt });
-            send({ jsonrpc: "2.0", id: message.id, result: { outcome: decision.outcome } });
-          } else if (message.id !== undefined) {
-            send({ jsonrpc: "2.0", id: message.id, error: { code: -32601, message: "Unsupported qualification request" } });
-          }
-          if (params?.sessionId === sessionId) {
-            const arguments_ = params.data?.arguments ?? params.toolCall?.rawInput ?? params.update?.rawInput;
-            if (arguments_?.command === command && arguments_.detach === true) evidence.detachedToolObserved = true;
-            const content = JSON.stringify(params);
-            if (!terminalSeen && content.includes("completed with exit code 0") && content.includes("shell")) evidence.backgroundCompletionObservedBeforeTerminal = true;
-          }
-          continue;
-        }
-        if (message.id === promptId) { terminalSeen = true; evidence.terminalElapsedMs = elapsed(); }
-        const entry = pending.get(message.id);
-        if (entry) { clearTimeout(entry.timer); pending.delete(message.id); message.error ? entry.reject(new Error(`provider_rpc_error:${message.error.code}`)) : entry.resolve(message.result); }
+    function failPending(code) {
+      for (const entry of pending.values()) { clearTimeout(entry.timer); entry.reject(new Error(code)); }
+      pending.clear();
+    }
+    const onShutdown = () => { evidence.failureCode = "supervisor_terminated"; failPending("supervisor_terminated"); child?.kill("SIGTERM"); };
+    process.once("SIGTERM", onShutdown); process.once("SIGINT", onShutdown);
+    function send(message) { child.stdin.write(`${JSON.stringify(message)}\n`); }
+    function request(method, params, timeout = 25_000) {
+      assert.ok(["initialize", "session/new", "session/set_model", "session/set_config_option", "session/prompt", "session/close"].includes(method));
+      const id = nextId++;
+      if (method === "session/prompt") promptId = id;
+      return new Promise((resolve, reject) => {
+        const timer = setTimeout(() => { pending.delete(id); reject(new Error(`request_deadline:${method}`)); }, timeout);
+        pending.set(id, { resolve, reject, timer }); send({ jsonrpc: "2.0", id, method, params });
+      });
+    }
+    try {
+      for (const key of ["HOME", "XDG_CONFIG_HOME", "XDG_DATA_HOME", "XDG_CACHE_HOME", "COPILOT_HOME", "COPILOT_CACHE_HOME"]) {
+        env[key] = join(root, key.toLowerCase()); await mkdir(env[key], { mode: 0o700 });
       }
-    });
-    const initialized = await request("initialize", { protocolVersion: 1, clientInfo: { name: "paperclip-real-service-risk-qualification", version: "1" }, clientCapabilities: COPILOT_ACP_CLIENT_CAPABILITIES });
-    assert.equal(initialized.agentInfo?.version, "1.0.88", "wrong provider version");
-    evidence.agentCapabilities = initialized.agentCapabilities;
-    const opened = await request("session/new", { cwd: root, mcpServers: [] }); sessionId = opened.sessionId;
-    assert.ok(opened.models?.availableModels?.some(value => value.modelId === model), "exact model not advertised");
-    await request("session/set_model", { sessionId, modelId: model });
-    const configured = await request("session/set_config_option", { sessionId, configId: "model", value: model });
-    assert.equal(configured.configOptions?.find(value => value.id === "model")?.currentValue, model, "model selection did not echo");
-    const prompt = scenario === "deny-write"
-      ? "Try exactly once to create qualification-marker.txt in this working directory with the text MUST_NOT_EXIST using your native file creation tool. The operator will deny this write. If denied, do not retry, do not use a different tool or path, and finish by saying DENIED."
-      : `Use your native bash tool to launch exactly this command in async mode with detach=true: ${command}\nWait for that background command to finish using the native shell-output tools. Do not modify the command or use another write. Only finish after its successful exit, saying BACKGROUND_SETTLED.`;
-    markerTimer = setInterval(() => { sampleMarker("during_turn").catch(() => failPending("marker_read_failed")); }, 100);
-    evidence.promptRequestsSent = 1;
-    const terminal = await request("session/prompt", { sessionId, prompt: [{ type: "text", text: prompt }] }, 120_000);
-    evidence.stopReason = terminal.stopReason;
-    evidence.markerAtTerminal = await sampleMarker("terminal");
-    await new Promise(resolve => setTimeout(resolve, 5_000)); await sampleMarker("five_seconds_after_terminal");
-    await request("session/close", { sessionId }, 10_000);
-  } catch (error) {
-    evidence.failureCode = typeof error?.message === "string" ? error.message.slice(0, 200) : "probe_failure";
+      await writeFile(join(env.COPILOT_HOME, "config.json"), JSON.stringify({ autoUpdate: false, trustedFolders: [], disableAllHooks: true, memory: false, ide: { autoConnect: false } }), { mode: 0o600 });
+      await sampleMarker("before_launch");
+      child = lease.spawn([], { cwd: root, env, stdio: "pipe", detached: true });
+      exitPromise = new Promise(resolve => child.once("close", (code, signal) => { failPending("provider_exited"); resolve({ code, signal }); }));
+      outerTimer = setTimeout(() => { failPending("outer_deadline"); child.kill("SIGTERM"); }, 180_000);
+      child.once("error", () => failPending("provider_spawn_failure"));
+      child.stdin.on("error", () => failPending("provider_stdin_failure"));
+      child.stderr.on("data", () => {});
+      child.stdout.on("data", chunk => {
+        bytes += chunk.length;
+        if (bytes > 8_388_608) { failPending("wire_limit"); child.kill("SIGTERM"); return; }
+        buffer += decoder.write(chunk);
+        while (buffer.includes("\n")) {
+          const index = buffer.indexOf("\n"), line = buffer.slice(0, index); buffer = buffer.slice(index + 1);
+          if (!line.trim()) continue;
+          let message;
+          try { message = JSON.parse(line); } catch { failPending("malformed_json"); child.kill("SIGTERM"); return; }
+          if (!message || typeof message !== "object" || Array.isArray(message)) { failPending("malformed_message"); child.kill("SIGTERM"); return; }
+          evidence.wire.push({ elapsedMs: elapsed(), message });
+          if (message.method) {
+            const params = message.params;
+            if (message.method === "session/request_permission" && message.id !== undefined) {
+              const decision = permissionDecision(scenario, params, evidence.promptRequestsSent === 1 && !terminalSeen ? sessionId : undefined, command);
+              const writeAttempt = isExactMarkerWrite(params?.toolCall, marker);
+              evidence.permissions.push({ elapsedMs: elapsed(), requestId: message.id, offeredOptions: params.options, ...decision, writeAttempt });
+              send({ jsonrpc: "2.0", id: message.id, result: { outcome: decision.outcome } });
+            } else if (message.id !== undefined) {
+              send({ jsonrpc: "2.0", id: message.id, error: { code: -32601, message: "Unsupported qualification request" } });
+            }
+            if (params?.sessionId === sessionId) {
+              const arguments_ = params.data?.arguments ?? params.toolCall?.rawInput ?? params.update?.rawInput;
+              if (arguments_?.command === command && arguments_.detach === true) evidence.detachedToolObserved = true;
+              const content = JSON.stringify(params);
+              if (!terminalSeen && content.includes("completed with exit code 0") && content.includes("shell")) evidence.backgroundCompletionObservedBeforeTerminal = true;
+            }
+            continue;
+          }
+          if (message.id === promptId) { terminalSeen = true; evidence.terminalElapsedMs = elapsed(); }
+          const entry = pending.get(message.id);
+          if (entry) { clearTimeout(entry.timer); pending.delete(message.id); message.error ? entry.reject(new Error(`provider_rpc_error:${message.error.code}`)) : entry.resolve(message.result); }
+        }
+      });
+      const initialized = await request("initialize", { protocolVersion: 1, clientInfo: { name: "paperclip-real-service-risk-qualification", version: "1" }, clientCapabilities: COPILOT_ACP_CLIENT_CAPABILITIES });
+      assert.equal(initialized.agentInfo?.version, "1.0.88", "wrong provider version");
+      evidence.agentCapabilities = initialized.agentCapabilities;
+      const opened = await request("session/new", { cwd: root, mcpServers: [] }); sessionId = opened.sessionId;
+      assert.ok(opened.models?.availableModels?.some(value => value.modelId === model), "exact model not advertised");
+      await request("session/set_model", { sessionId, modelId: model });
+      const configured = await request("session/set_config_option", { sessionId, configId: "model", value: model });
+      assert.equal(configured.configOptions?.find(value => value.id === "model")?.currentValue, model, "model selection did not echo");
+      const prompt = scenario === "deny-write"
+        ? "Try exactly once to create qualification-marker.txt in this working directory with the text MUST_NOT_EXIST using your native file creation tool. The operator will deny this write. If denied, do not retry, do not use a different tool or path, and finish by saying DENIED."
+        : `Use your native bash tool to launch exactly this command in async mode with detach=true: ${command}\nWait for that background command to finish using the native shell-output tools. Do not modify the command or use another write. Only finish after its successful exit, saying BACKGROUND_SETTLED.`;
+      markerTimer = setInterval(() => { sampleMarker("during_turn").catch(() => failPending("marker_read_failed")); }, 100);
+      evidence.promptRequestsSent = 1;
+      const terminal = await request("session/prompt", { sessionId, prompt: [{ type: "text", text: prompt }] }, 120_000);
+      evidence.stopReason = terminal.stopReason;
+      evidence.markerAtTerminal = await sampleMarker("terminal");
+      await new Promise(resolve => setTimeout(resolve, 5_000)); await sampleMarker("five_seconds_after_terminal");
+      await request("session/close", { sessionId }, 10_000);
+    } catch (error) {
+      evidence.failureCode = typeof error?.message === "string" ? error.message.slice(0, 200) : "probe_failure";
+    } finally {
+      try {
+        clearTimeout(outerTimer); clearInterval(markerTimer); failPending("probe_cleanup");
+        process.removeListener("SIGTERM", onShutdown); process.removeListener("SIGINT", onShutdown);
+        if (child) {
+          child.stdin.end();
+          const groupId = Number.isSafeInteger(child.pid) && child.pid > 0 ? child.pid : null;
+          const killGroup = signal => { if (groupId === null) return; try { process.kill(-groupId, signal); } catch (error) { if (error.code !== "ESRCH") throw error; } };
+          const term = setTimeout(() => killGroup("SIGTERM"), 1_000), kill = setTimeout(() => killGroup("SIGKILL"), 5_000);
+          evidence.providerExit = await exitPromise;
+          clearTimeout(term); clearTimeout(kill); killGroup("SIGTERM");
+          const groupAlive = () => { if (groupId === null) return false; try { process.kill(-groupId, 0); return true; } catch (error) { if (error.code !== "ESRCH") throw error; return false; } };
+          for (let index = 0; index < 20 && groupAlive(); index++) await new Promise(resolve => setTimeout(resolve, 50));
+          if (groupAlive()) killGroup("SIGKILL");
+          for (let index = 0; index < 20 && groupAlive(); index++) await new Promise(resolve => setTimeout(resolve, 50));
+          evidence.cleanupComplete = !groupAlive();
+        } else evidence.cleanupComplete = true;
+      } finally { await lease.close(); }
+      await sampleMarker("after_process_cleanup");
+      evidence.result = evaluateProbe(evidence);
+      let text = JSON.stringify(evidence, null, 2).replaceAll(token, "[REDACTED]").replaceAll(root, "/fixture/workspace");
+      if (sessionId) text = text.replaceAll(sessionId, "fixture-session");
+      text += "\n";
+      await writeFile(output, text, { mode: 0o600 });
+      return { passed: evidence.result.passed, failures: evidence.result.failures, output, sha256: createHash("sha256").update(text).digest("hex"), promptRequestsSent: evidence.promptRequestsSent };
+    }
   } finally {
-    clearTimeout(outerTimer); clearInterval(markerTimer); failPending("probe_cleanup");
-    process.removeListener("SIGTERM", onShutdown); process.removeListener("SIGINT", onShutdown);
-    if (child) {
-      child.stdin.end();
-      const groupId = Number.isSafeInteger(child.pid) && child.pid > 0 ? child.pid : null;
-      const killGroup = signal => { if (groupId === null) return; try { process.kill(-groupId, signal); } catch (error) { if (error.code !== "ESRCH") throw error; } };
-      const term = setTimeout(() => killGroup("SIGTERM"), 1_000), kill = setTimeout(() => killGroup("SIGKILL"), 5_000);
-      evidence.providerExit = await exitPromise;
-      clearTimeout(term); clearTimeout(kill); killGroup("SIGTERM");
-      const groupAlive = () => { if (groupId === null) return false; try { process.kill(-groupId, 0); return true; } catch (error) { if (error.code !== "ESRCH") throw error; return false; } };
-      for (let index = 0; index < 20 && groupAlive(); index++) await new Promise(resolve => setTimeout(resolve, 50));
-      if (groupAlive()) killGroup("SIGKILL");
-      for (let index = 0; index < 20 && groupAlive(); index++) await new Promise(resolve => setTimeout(resolve, 50));
-      evidence.cleanupComplete = !groupAlive();
-    } else evidence.cleanupComplete = true;
-    await lease.close();
-    await sampleMarker("after_process_cleanup");
-    evidence.result = evaluateProbe(evidence);
-    let text = JSON.stringify(evidence, null, 2).replaceAll(token, "[REDACTED]").replaceAll(root, "/fixture/workspace");
-    if (sessionId) text = text.replaceAll(sessionId, "fixture-session");
-    text += "\n";
-    await writeFile(output, text, { mode: 0o600 });
     await rm(root, { recursive: true, force: true });
-    return { passed: evidence.result.passed, failures: evidence.result.failures, output, sha256: createHash("sha256").update(text).digest("hex"), promptRequestsSent: evidence.promptRequestsSent };
   }
 }
 
diff --git a/packages/paperclip-runner/scripts/qualify-copilot-acp.test.mjs b/packages/paperclip-runner/scripts/qualify-copilot-acp.test.mjs
index faa26e11857..fb018fe3e08 100644
--- a/packages/paperclip-runner/scripts/qualify-copilot-acp.test.mjs
+++ b/packages/paperclip-runner/scripts/qualify-copilot-acp.test.mjs
@@ -55,7 +55,7 @@ test("missing credentials reject before resolving a pack or launching anything",
 });
 
 test("full credential-free protocol fixture preserves numeric-zero denial and reaps its process", async () => {
-  const { mkdtemp, mkdir, writeFile, readFile, rm } = await import("node:fs/promises");
+  const { mkdtemp, mkdir, writeFile, readFile, rm, access } = await import("node:fs/promises");
   const { tmpdir } = await import("node:os");
   const { join } = await import("node:path");
   const { runProbe } = await import("./qualify-copilot-acp.mjs");
@@ -69,23 +69,30 @@ test("full credential-free protocol fixture preserves numeric-zero denial and re
     await writeFile(join(moduleRoot, "copilot-events.js"), 'export const COPILOT_ACP_CLIENT_CAPABILITIES = {};');
     const childScript = join(root, "child.mjs");
     await writeFile(childScript, `import { createInterface } from 'node:readline';
-const send = m => process.stdout.write(JSON.stringify({jsonrpc:'2.0', ...m})+'\\n');
+const send = m => {
+ const wire=Buffer.from(JSON.stringify({jsonrpc:'2.0', ...m})+'\\n');
+ const unicode=wire.indexOf(Buffer.from('🚀'));
+ if(unicode<0){process.stdout.write(wire);return;}
+ process.stdout.write(wire.subarray(0,unicode+2));
+ setTimeout(()=>process.stdout.write(wire.subarray(unicode+2)),50);
+};
 let promptId;
 createInterface({input:process.stdin}).on('line', line => {
  const m=JSON.parse(line);
  if(!m.method){if(m.id!==0 || m.result?.outcome?.optionId!=='native-deny-0') process.exit(8); send({id:promptId,result:{stopReason:'end_turn'}});return;}
  let result={};
- if(m.method==='initialize')result={agentInfo:{version:'1.0.88'},agentCapabilities:{}};
+ if(m.method==='initialize')result={agentInfo:{version:'1.0.88'},agentCapabilities:{label:'東京 🚀 café'}};
  if(m.method==='session/new')result={sessionId:'fixture-session',models:{availableModels:[{modelId:'gpt-5.6-luna'}]}};
  if(m.method==='session/set_config_option')result={configOptions:[{id:'model',currentValue:'gpt-5.6-luna'}]};
  if(m.method==='session/prompt'){promptId=m.id;send({id:0,method:'session/request_permission',params:{sessionId:'fixture-session',toolCall:{kind:'edit',rawInput:{fileName:process.cwd()+'/qualification-marker.txt'}},options:${JSON.stringify(options)}}});return;}
  send({id:m.id,result});
 }).on('close',()=>process.exit(0));`);
-    await writeFile(join(moduleRoot, "profile-installation.js"), `import { spawn } from 'node:child_process'; export const assertAcpxProfileEnvironment=()=>{}; export const verifyAcpxProfileInstallation=async()=>({commandDigest:'fixture-only',openCommand:async()=>({spawn:(_args,options)=>spawn(options.env.COPILOT_GITHUB_TOKEN === "fixture-spawn-failure" ? "/paperclip-fixture-missing-executable" : ${JSON.stringify(process.execPath)},[${JSON.stringify(childScript)}],options),close:async()=>{}})});`);
+    await writeFile(join(moduleRoot, "profile-installation.js"), `import { spawn } from 'node:child_process'; import { writeFileSync } from 'node:fs'; let token; export const assertAcpxProfileEnvironment=()=>{}; export const verifyAcpxProfileInstallation=async()=>({commandDigest:'fixture-only',openCommand:async()=>({spawn:(_args,options)=>{token=options.env.COPILOT_GITHUB_TOKEN;writeFileSync(${JSON.stringify(join(root, "last-probe-root"))},options.cwd);return spawn(token === "fixture-spawn-failure" ? "/paperclip-fixture-missing-executable" : ${JSON.stringify(process.execPath)},[${JSON.stringify(childScript)}],options);},close:async()=>{if(token==="fixture-close-failure")throw new Error("fixture lease cleanup failed");}})});`);
     const output = join(root, "output.json");
     const result = await runProbe(root, output, "deny-write", "fixture-token-never-used-for-network");
     const evidence = JSON.parse(await readFile(output, "utf8"));
     assert.equal(result.passed, true);
+    assert.deepEqual(evidence.agentCapabilities, { label: "東京 🚀 café" });
     assert.equal(evidence.permissions[0].requestId, 0);
     assert.deepEqual(evidence.permissions[0].outcome, { outcome: "selected", optionId: "native-deny-0" });
     assert.equal(evidence.cleanupComplete, true);
@@ -98,5 +105,11 @@ createInterface({input:process.stdin}).on('line', line => {
     assert.equal(failedEvidence.promptRequestsSent, 0);
     assert.equal(failedEvidence.cleanupComplete, true);
     assert.match(failedEvidence.failureCode, /provider_(spawn|stdin)_failure/);
+    const lastRoot = async () => await readFile(join(root, "last-probe-root"), "utf8");
+    await assert.rejects(access(await lastRoot()), { code: "ENOENT" });
+    await assert.rejects(runProbe(root, join(root, "missing/report.json"), "deny-write", "fixture-token-never-used-for-network"), { code: "ENOENT" });
+    await assert.rejects(access(await lastRoot()), { code: "ENOENT" });
+    await assert.rejects(runProbe(root, join(root, "close-failure.json"), "deny-write", "fixture-close-failure"), /fixture lease cleanup failed/);
+    await assert.rejects(access(await lastRoot()), { code: "ENOENT" });
   } finally { await rm(root, { recursive: true, force: true }); }
 });
diff --git a/packages/paperclip-runner/scripts/release-provider-pack.mjs b/packages/paperclip-runner/scripts/release-provider-pack.mjs
index cedbde6bbf2..726d63db362 100644
--- a/packages/paperclip-runner/scripts/release-provider-pack.mjs
+++ b/packages/paperclip-runner/scripts/release-provider-pack.mjs
@@ -28,5 +28,15 @@ export function verifyReleaseProviderPack(identity, sourceRevision) {
       throw new Error("Remote provider-pack Cursor identity does not match this release");
     }
   }
+  const copilot = payload.providers?.copilot;
+  const copilotProfile = profiles.profiles.copilot;
+  if (Object.hasOwn(payload.candidateProviders ?? {}, "copilot") || !copilot
+    || copilot.version !== copilotProfile.agentServerVersion || copilot.profileDigest !== copilotProfile.commandDigest
+    || copilot.closureDigest !== "sha256:a3d8f4367cfa1694d79e3f8b7930b6fbfe42a229c272b375b11951d631db8d07"
+    || copilot.qualification !== "qualified" || copilot.path !== "provider-assets/copilot/linux-x64"
+    || Object.keys(copilot).sort().join(",") !== "closureDigest,path,profileDigest,qualification,sha256,version"
+    || !/^sha256:[a-f0-9]{64}$/.test(copilot.sha256 ?? "")) {
+    throw new Error("Remote provider-pack Copilot identity does not match this release");
+  }
   return identity;
 }
diff --git a/packages/paperclip-runner/scripts/release-provider-pack.test.mjs b/packages/paperclip-runner/scripts/release-provider-pack.test.mjs
index 33d6de5874f..9b42d0419f5 100644
--- a/packages/paperclip-runner/scripts/release-provider-pack.test.mjs
+++ b/packages/paperclip-runner/scripts/release-provider-pack.test.mjs
@@ -21,6 +21,9 @@ function fixture() {
     providers: { cursor: { version: profiles.profiles.cursor.agentServerVersion, profileDigest: profiles.profiles.cursor.commandDigest,
       closureDigest: `sha256:${distributions.platforms["linux-x64"].closureSha256}`, qualification: "qualified",
       path: "provider-assets/cursor/linux-x64", sha256: digest } } };
+  payload.providers.copilot = { version: profiles.profiles.copilot.agentServerVersion,
+    profileDigest: profiles.profiles.copilot.commandDigest, closureDigest: "sha256:a3d8f4367cfa1694d79e3f8b7930b6fbfe42a229c272b375b11951d631db8d07",
+    qualification: "qualified", path: "provider-assets/copilot/linux-x64", sha256: digest };
   return payload;
 }
 function seal(payload) { return { schema: "paperclip-runner/remote-provider-pack/v1", payload,
@@ -77,3 +80,16 @@ test("release assembly rejects rehashed stale or missing packs before staging an
     }
   } finally { rmSync(root, { recursive: true, force: true }); }
 });
+
+for (const field of ["version", "profileDigest", "closureDigest", "qualification", "path", "sha256"]) {
+  test(`rejects an independently rehashed stale Copilot ${field}`, () => {
+    const payload = fixture(); payload.providers.copilot[field] = "stale";
+    assert.throws(() => verifyReleaseProviderPack(seal(payload), revision), /Copilot identity/);
+  });
+}
+test("rejects omitted Copilot and a duplicate candidate inventory", () => {
+  const missing = fixture(); delete missing.providers.copilot;
+  assert.throws(() => verifyReleaseProviderPack(seal(missing), revision), /Copilot identity/);
+  const mixed = fixture(); mixed.candidateProviders = { copilot: mixed.providers.copilot };
+  assert.throws(() => verifyReleaseProviderPack(seal(mixed), revision), /Copilot identity/);
+});
diff --git a/packages/paperclip-runner/src/backends/harness-driver-backend.test.ts b/packages/paperclip-runner/src/backends/harness-driver-backend.test.ts
index e1542606a24..0f3c82dd677 100644
--- a/packages/paperclip-runner/src/backends/harness-driver-backend.test.ts
+++ b/packages/paperclip-runner/src/backends/harness-driver-backend.test.ts
@@ -469,9 +469,11 @@ describe("HarnessDriverBackend", () => {
 
   it("allows only the run id to change when a harness session is attached", async () => {
     const attachedRunIds: string[] = [];
+    const grants: unknown[] = [];
     class AttachableHarnessSession extends FakeHarnessSession {
-      async attachRun(input: { runId: string }) {
+      async attachRun(input: { runId: string; currentRunGrant?: { runtimeContext: null; instructions: string } }) {
         attachedRunIds.push(input.runId);
+        grants.push(input.currentRunGrant);
       }
     }
     const backend = new HarnessDriverBackend({
@@ -505,8 +507,10 @@ describe("HarnessDriverBackend", () => {
 
     await expect(session.attachRun?.({
       identity: { ...originalIdentity, runId: "run-2" },
+      currentRunGrant: { runtimeContext: null, instructions: "Current registered instructions." },
     })).resolves.toBeUndefined();
     expect(attachedRunIds).toEqual(["run-2"]);
+    expect(grants).toEqual([{ runtimeContext: null, instructions: "Current registered instructions." }]);
     expect(session.identity()).toEqual({ ...originalIdentity, runId: "run-2" });
   });
 
diff --git a/packages/paperclip-runner/src/backends/harness-driver-backend.ts b/packages/paperclip-runner/src/backends/harness-driver-backend.ts
index 6e3897e4e57..fbd32544037 100644
--- a/packages/paperclip-runner/src/backends/harness-driver-backend.ts
+++ b/packages/paperclip-runner/src/backends/harness-driver-backend.ts
@@ -13,6 +13,7 @@ import type {
   PersistedNativeSession,
 } from "../contracts/native-session-backend.js";
 import { NativeSessionProtocolIntegrityError } from "../contracts/native-session-backend.js";
+import type { NativeRunRuntimeGrant } from "../contracts/runtime-context.js";
 import type {
   PrpEvent,
   PrpTerminalState,
@@ -471,6 +472,7 @@ class HarnessNativeSession implements NativeSession {
 
   async attachRun(input: {
     identity: OpenNativeSessionInput["identity"];
+    currentRunGrant?: NativeRunRuntimeGrant;
   }): Promise<void> {
     this.#assertProtocolIntegrity();
     const currentIdentity = this.#input.identity;
@@ -486,7 +488,9 @@ class HarnessNativeSession implements NativeSession {
       throw new Error("native_session_multi_run_unavailable");
     }
     try {
-      await this.#session.attachRun({ runId: input.identity.runId });
+      await this.#session.attachRun({ runId: input.identity.runId,
+        ...(input.currentRunGrant ? { currentRunGrant: structuredClone(input.currentRunGrant) } : {}),
+      });
       this.#assertProtocolIntegrity();
     } catch (error) {
       this.#rethrowProtocolIntegrity(error);
diff --git a/packages/paperclip-runner/src/backends/native-backend-factory.test.ts b/packages/paperclip-runner/src/backends/native-backend-factory.test.ts
index d7f0c1c9d95..264c4e02676 100644
--- a/packages/paperclip-runner/src/backends/native-backend-factory.test.ts
+++ b/packages/paperclip-runner/src/backends/native-backend-factory.test.ts
@@ -600,8 +600,9 @@ describe("native backend factory", () => {
   it("selects prepared transport only for v5 native input and retains prepared constraints", async () => {
     const input = preparedExecution(execution());
     const transport = new FakeCodexTransport();
+    let currentInstructions: string | undefined;
     const backend = createCodexNativeSessionBackend(input, {
-      transportFactory: () => transport,
+      transportFactory: (context) => { currentInstructions = context?.baseInstructions; return transport; },
       workingDirectoryAuthority: "remote_runner",
       environment: { PAPERCLIP_WORKSPACE_CWD: WORKSPACE },
     });
@@ -619,6 +620,8 @@ describe("native backend factory", () => {
     expect(
       transport.calls.find((call) => call.method === "thread/start")?.params,
     ).toMatchObject({ conversationMode: "prepared" });
+    expect(currentInstructions).toContain("Keep assigned instructions.");
+    expect(currentInstructions).toBe(transport.calls.find((call) => call.method === "thread/start")?.params.developerInstructions);
     expect(backend.preparedTaskConstraints).toEqual(
       expect.arrayContaining([
         expect.stringContaining("Obtain one accepted result"),
diff --git a/packages/paperclip-runner/src/cli/acpx-runtime-sidecar.ts b/packages/paperclip-runner/src/cli/acpx-runtime-sidecar.ts
index 63fc827217a..c351b33cfa4 100644
--- a/packages/paperclip-runner/src/cli/acpx-runtime-sidecar.ts
+++ b/packages/paperclip-runner/src/cli/acpx-runtime-sidecar.ts
@@ -34,7 +34,7 @@ import {
   normalizeAcpFormElicitation,
   type NormalizedAcpForm,
 } from "../drivers/acpx/acp-question-adapter.js";
-import { openCodexAcpxRuntime } from "../drivers/acpx/codex-runtime-adapter.js";
+import { openCodexAcpxRuntime, AcpxProviderProcessLostError } from "../drivers/acpx/codex-runtime-adapter.js";
 import { AcpxApprovalRequiredError } from "../drivers/acpx/permission-policy.js";
 import { normalizeAcpxPermission, type NormalizedAcpxPermission } from "../drivers/acpx/acp-permission-adapter.js";
 import { acpxGoalProjection } from "../drivers/acpx/session-goals.js";
@@ -678,7 +678,7 @@ async function pumpTurn(
     terminal = {
       status: "failed",
       error: {
-        ...(error instanceof AcpxApprovalRequiredError ? { code: error.code } : {}),
+        ...(error instanceof AcpxApprovalRequiredError || error instanceof AcpxProviderProcessLostError ? { code: error.code } : {}),
         message: safeMessage(error),
         retryable: false,
       },
diff --git a/packages/paperclip-runner/src/cli/copilot-metadata-probe.ts b/packages/paperclip-runner/src/cli/copilot-metadata-probe.ts
new file mode 100644
index 00000000000..fb33f0628fe
--- /dev/null
+++ b/packages/paperclip-runner/src/cli/copilot-metadata-probe.ts
@@ -0,0 +1,5 @@
+#!/usr/bin/env node
+import { probeCopilotMetadata } from "../drivers/copilot-metadata-probe.js";
+const result = await probeCopilotMetadata(process.env.COPILOT_GITHUB_TOKEN ?? "", process.env.PAPERCLIP_COPILOT_PROBE_MODEL);
+process.stdout.write(`${JSON.stringify(result)}\n`);
+if (result.status === "failed") process.exitCode = 1;
diff --git a/packages/paperclip-runner/src/cli/eval-session-contract.test.ts b/packages/paperclip-runner/src/cli/eval-session-contract.test.ts
index 1fd67456a26..559cba217ad 100644
--- a/packages/paperclip-runner/src/cli/eval-session-contract.test.ts
+++ b/packages/paperclip-runner/src/cli/eval-session-contract.test.ts
@@ -141,6 +141,25 @@ describe("eval-session request contract", () => {
     } finally { await rm(workspace, { recursive: true, force: true }); }
   });
 
+  it("requires bounded exact Copilot profile admission before loading provider state", async () => {
+    const args = ["--request", "/tmp/request.json", "--output", "/tmp/result.json", "--candidate-profile", "copilot"];
+    expect(() => parseEvalSessionCliArgs(args)).toThrow("require --expected-acpx-profile");
+    for (const invalid of ["[]", "null", "malformed", JSON.stringify({ overflow: "x".repeat(4096) })]) {
+      expect(() => parseEvalSessionCliArgs([...args, "--expected-acpx-profile", invalid])).toThrow();
+    }
+    const profile = resolveQualifiedAcpxProfile("copilot", "gpt-5.6-luna");
+    expect(parseEvalSessionCliArgs([...args, "--expected-acpx-profile", JSON.stringify(profile)]).expectedAcpxProfile).toEqual(profile);
+    const workspace = await mkdtemp(join(tmpdir(), "eval-profile-admission-"));
+    try {
+      const path = join(workspace, "request.json");
+      await writeFile(path, JSON.stringify(request({ provider: "acpx", acpxAgent: "copilot", model: "gpt-5.6-luna" })));
+      const factory = vi.fn();
+      await expect(runEvalSessionCli(["--request", path, "--output", join(workspace, "output.json"), "--candidate-profile", "copilot", "--expected-acpx-profile", JSON.stringify({ ...profile, commandDigest: `sha256:${"0".repeat(64)}` })], { serviceFactory: factory })).rejects.toThrow("does not match the built runner profile");
+      expect(factory).not.toHaveBeenCalled();
+      expect(await readdir(workspace)).toEqual(["request.json"]);
+    } finally { await rm(workspace, { recursive: true, force: true }); }
+  });
+
   it("materializes a production-v3 runtime context for direct live providers", async () => {
     const workspace = await mkdtemp(join(tmpdir(), "paperclip-eval-context-"));
     let instructionRoot: string | null = null;
diff --git a/packages/paperclip-runner/src/contracts/harness-driver.ts b/packages/paperclip-runner/src/contracts/harness-driver.ts
index 410496afce5..6596e2b9c88 100644
--- a/packages/paperclip-runner/src/contracts/harness-driver.ts
+++ b/packages/paperclip-runner/src/contracts/harness-driver.ts
@@ -1,3 +1,4 @@
+import type { NativeRunRuntimeGrant } from "./runtime-context.js";
 import type {
   PrpEvent,
   PrpStructuredRunResult,
@@ -505,7 +506,7 @@ export interface HarnessSession {
     displayId?: string | null;
   };
   events(): AsyncIterable<PrpEvent>;
-  attachRun?(input: { runId: string }): Promise<void> | void;
+  attachRun?(input: { runId: string; currentRunGrant?: NativeRunRuntimeGrant }): Promise<void> | void;
   startTurn(input: {
     message: NativeUserMessage;
     /** Set by orchestration only after successful provider-session recovery. */
diff --git a/packages/paperclip-runner/src/contracts/native-execution.test.ts b/packages/paperclip-runner/src/contracts/native-execution.test.ts
index 460a43534c6..7bf605ef8d4 100644
--- a/packages/paperclip-runner/src/contracts/native-execution.test.ts
+++ b/packages/paperclip-runner/src/contracts/native-execution.test.ts
@@ -407,6 +407,30 @@ describe("NativeExecutionInputV1", () => {
     })).toThrow("does not match");
   });
 
+  it.each([1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33] as const)("decodes closed Copilot profile history at version %s without admitting a future version", (agentProfileVersion) => {
+    const { qualificationModel: _qualificationModel, reportedModelId: _reportedModelId,
+      permissionPolicy, qualificationStatus: _qualificationStatus, modelPolicy: _modelPolicy,
+      ...snapshot } = QUALIFIED_ACPX_PROFILES.copilot;
+    const provider = {
+      kind: "acpx", agent: "copilot", model: "gpt-5.6-luna", permissionPolicy,
+      profile: { ...snapshot, agentProfileVersion },
+    } as const;
+    const value = { ...input, session: { ...input.session, driverKind: "acpx_runtime" }, provider };
+    const parsed = parseNativeExecutionInput(value);
+    expect(parsed.provider).toEqual(provider);
+    expect(parseNativeExecutionInput(parsed)).toEqual(parsed);
+    for (const unsupportedVersion of [0, 35, 1.5, "34", null]) {
+      expect(() => parseNativeExecutionInput({
+        ...value, provider: { ...provider, profile: { ...provider.profile, agentProfileVersion: unsupportedVersion } },
+      })).toThrow("qualified ACPX v1 profile");
+    }
+    expect(() => parseNativeExecutionInput({
+      ...value, provider: { ...provider, profile: { ...provider.profile, agent: "pi" } },
+    })).toThrow("qualified ACPX v1 profile");
+    expect(() => parseNativeExecutionInput({
+      ...value, session: { ...value.session, driverKind: "opencode_server" },
+    })).toThrow("does not match");
+  });
   it.each(Object.values(QUALIFIED_ACPX_PROFILES))(
     "admits the current $agent profile through the native execution boundary",
     (declaration) => {
@@ -564,6 +588,46 @@ describe("native task context ownership", () => {
     });
   }
 
+  const { qualificationModel: _copilotQualificationModel, reportedModelId: _copilotReportedModelId,
+    permissionPolicy: _copilotPermissionPolicy, qualificationStatus: _copilotQualificationStatus, modelPolicy: _copilotModelPolicy,
+    ...copilotSnapshot } = QUALIFIED_ACPX_PROFILES.copilot;
+
+  it.each([
+    { driverKind: "acpx_runtime", provider: { kind: "acpx", agent: "copilot", model: "gpt-5.6-luna", permissionMode: "deny-all", profile: copilotSnapshot } },
+    { driverKind: "opencode_server", provider: { kind: "opencode", model: "openrouter/deepseek/deepseek-v4-flash-0731", permissionMode: "deny" } },
+    { driverKind: "acpx_runtime", provider: {
+      kind: "acpx", agent: "pi", model: "openrouter/deepseek/deepseek-v4-flash-0731", permissionMode: "deny-all",
+      profile: { driverKind: "acpx_runtime", protocolVersion: 1, acpxVersion: "0.13.1", agent: "pi", agentProfileVersion: 1,
+        agentServerPackage: "pi-acp", agentServerVersion: "0.0.33", agentRuntimePackage: "@earendil-works/pi-coding-agent",
+        agentRuntimeVersion: "0.84.2", commandDigest: `sha256:${"a".repeat(64)}` },
+    } },
+    { driverKind: "openai_dot_mcp", provider: {
+      kind: "openai_dot", model: null,
+      binding: { bindingId: "dot-binding", bindingGeneration: 1, companyId: input.binding.companyId, agentId: input.binding.agentId,
+        acceptByUnixMs: 1_000, expiresAtUnixMs: 2_000 },
+    } },
+  ])("preserves an unregistered saved prompt for $provider.kind", ({ driverKind, provider }) => {
+    const current = currentInput();
+    if (!("runtimeContext" in current)) throw new Error("Expected a runtime context");
+    const text = "Saved instructions absent from the current release.";
+    const context = { ...current.runtimeContext,
+      prompt: { revision: "saved-prompt-before-upgrade", text, digest: createHash("sha256").update(text).digest("hex") } };
+    context.aggregateDigest = canonicalNativeRuntimeContextDigest(context);
+    const persisted = JSON.parse(JSON.stringify({
+      ...current, provider, session: { ...current.session, driverKind }, runtimeContext: context,
+      ...(provider.kind === "openai_dot" ? {
+        schema: NATIVE_EXECUTION_INPUT_SCHEMA_V6,
+        workspace: { access: "none", cwd: null, repoUrl: null, repoRef: null, branchName: null },
+        credentialBindings: [],
+      } : {}),
+    }));
+    const recovered = parseNativeExecutionInput(persisted);
+    expect(recovered.runtimeContext).toEqual(context);
+    expect(recovered.provider).toEqual(provider);
+    expect(recovered.session.driverKind).toBe(driverKind);
+    expect(parseNativeExecutionInput(recovered)).toEqual(recovered);
+  });
+
   it("carries an opaque provider mode without a vendor restriction and fences obsolete field names", () => {
     const current = currentInput();
     const provider = {
diff --git a/packages/paperclip-runner/src/contracts/native-execution.ts b/packages/paperclip-runner/src/contracts/native-execution.ts
index 194920c3e96..ca23b5f0246 100644
--- a/packages/paperclip-runner/src/contracts/native-execution.ts
+++ b/packages/paperclip-runner/src/contracts/native-execution.ts
@@ -91,6 +91,9 @@ export type NativeOpenCodePermissionMode = "allow" | "ask" | "deny";
 export type NativeAcpxPermissionMode = "approve-all" | "approve-paperclip" | "approve-reads" | "deny-all";
 export type NativeCursorMode = "agent" | "plan" | "ask";
 
+/** Decodable history; current immutable admission comes from the shared manifest. */
+export type NativeAcpxProfileVersion = AcpxProfileVersion;
+
 export interface NativeAcpxProfileSnapshot {
   driverKind: "acpx_runtime";
   protocolVersion: 1;
diff --git a/packages/paperclip-runner/src/contracts/native-session-backend.ts b/packages/paperclip-runner/src/contracts/native-session-backend.ts
index f473b56a03e..ef19e5fe272 100644
--- a/packages/paperclip-runner/src/contracts/native-session-backend.ts
+++ b/packages/paperclip-runner/src/contracts/native-session-backend.ts
@@ -1,3 +1,4 @@
+import type { NativeRunRuntimeGrant } from "./runtime-context.js";
 import type {
   NativeRunIdentity,
   NativeSessionCapabilities,
@@ -184,7 +185,7 @@ export class NativeSessionCleanupQuarantinedError extends Error {
 export interface NativeSession {
   identity(): NativeRunIdentity;
   capabilities(): Promise<NativeSessionCapabilities>;
-  attachRun?(input: { identity: NativeRunIdentity }): Promise<void>;
+  attachRun?(input: { identity: NativeRunIdentity; currentRunGrant?: NativeRunRuntimeGrant }): Promise<void>;
   /** Relinquish controller authority without suspending provider execution. */
   detachControllerForRestart?(): Promise<void>;
   events(input?: { afterCursor?: string | null }): AsyncIterable<PrpEvent>;
diff --git a/packages/paperclip-runner/src/contracts/runtime-context.ts b/packages/paperclip-runner/src/contracts/runtime-context.ts
index 810556ac49f..598cd9d8bda 100644
--- a/packages/paperclip-runner/src/contracts/runtime-context.ts
+++ b/packages/paperclip-runner/src/contracts/runtime-context.ts
@@ -27,6 +27,12 @@ export interface NativeRuntimeContextSnapshot {
   aggregateDigest: string;
 }
 
+/** Authenticated current-run grants; immutable session policy is verified separately. */
+export interface NativeRunRuntimeGrant {
+  runtimeContext: NativeRuntimeContextSnapshot | null;
+  instructions: string;
+}
+
 export class NativeRuntimeContextError extends Error {
   readonly code = "native_runtime_context_invalid" as const;
   constructor(message: string) { super(message); this.name = "NativeRuntimeContextError"; }
diff --git a/packages/paperclip-runner/src/drivers/acpx/acp-permission-adapter.ts b/packages/paperclip-runner/src/drivers/acpx/acp-permission-adapter.ts
index fede31d3641..59e068afa9b 100644
--- a/packages/paperclip-runner/src/drivers/acpx/acp-permission-adapter.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/acp-permission-adapter.ts
@@ -2,6 +2,8 @@ import type { AcpPermissionDecision, AcpPermissionRequest } from "acpx/runtime";
 import type { HarnessRuntimeRequestResolution } from "../../contracts/harness-driver.js";
 import { cursorToolIdentity } from "./cursor-plan-tool-identity.js";
 
+
+
 import { safeCopilotEditTarget } from "./copilot-permission-context.js";
 
 export type AcpxPermissionAction = "accept" | "accept_for_session" | "decline" | "cancel";
diff --git a/packages/paperclip-runner/src/drivers/acpx/codex-acpx-driver.test.ts b/packages/paperclip-runner/src/drivers/acpx/codex-acpx-driver.test.ts
index 99a260da3d1..5cbfdbf0296 100644
--- a/packages/paperclip-runner/src/drivers/acpx/codex-acpx-driver.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/codex-acpx-driver.test.ts
@@ -3,6 +3,7 @@ import { readFileSync } from "node:fs";
 import { createHash } from "node:crypto";
 import { cursorToolIdentity } from "./cursor-plan-tool-identity.js";
 import { describe, expect, it, vi } from "vitest";
+import { AcpxProviderProcessLostError } from "./codex-runtime-adapter.js";
 
 import type { AcpRuntimeEvent } from "acpx/runtime";
 
@@ -1686,6 +1687,35 @@ describe("Codex ACPX harness driver", () => {
     });
   });
 
+  it("expires a Copilot permission on provider death and rejects its late answer", async () => {
+    const failure = deferred<void>();
+    const fixture = driverFixture({ agent: "copilot", model: "gpt-5.6-luna", providerPolicy: { readOnly: false } }, { eventStreamFailure: failure.promise });
+    const session = await fixture.driver.openSession({ runId: "run-provider-death", normalizedSessionId: "session-1", workingDirectory: "/workspace" });
+    const created = collectUntil(session.events(), "runtime_request.created");
+    const { turnId } = await session.startTurn({ message: { text: "Edit the file" } });
+    const callback = fixture.host.startTurn.mock.calls[0]![0].onPermissionRequest!;
+    const controller = new AbortController();
+    const response = callback({ inferredKind: "edit", raw: {
+      sessionId: "agent-session-1", toolCall: { toolCallId: "dead-edit", title: "Edit file" },
+      options: [{ optionId: "once", kind: "allow_once", name: "Allow once" }],
+    } } as Parameters<typeof callback>[0], { signal: controller.signal, responseDelivery: Promise.resolve() });
+    await created;
+    const request = session.pendingRuntimeRequests!()[0]!;
+    const expired = collectUntil(session.events(), "runtime_request.expired");
+    const error = new AcpxProviderProcessLostError();
+    controller.abort(error);
+    await expect(response).resolves.toEqual({ outcome: "cancel" });
+    expect((await expired).at(-1)).toMatchObject({ eventType: "runtime_request.expired", payload: {
+      requestId: request.requestId, reason: "provider_process_lost", replayAllowed: false,
+    } });
+    await expect(session.resolveRuntimeRequest!({ requestId: request.requestId, turnId, resolution: { action: "accept" } })).rejects.toThrow("no longer pending");
+    const terminal = collectUntil(session.events(), "turn.failed");
+    failure.reject(error);
+    expect((await terminal).at(-1)).toMatchObject({ payload: { error: { code: "ACPX_PROVIDER_PROCESS_LOST" } } });
+    expect(session.pendingRuntimeRequests!()).toEqual([]);
+    await session.close({ reason: "death verified" });
+  });
+
   it("delivers only offered permission choices and rejects stale or duplicate answers", async () => {
     const fixture = driverFixture({ agent: "claude", model: "claude-sonnet-5" });
     const session = await fixture.driver.openSession({
diff --git a/packages/paperclip-runner/src/drivers/acpx/codex-acpx-driver.ts b/packages/paperclip-runner/src/drivers/acpx/codex-acpx-driver.ts
index 871ff1cebe2..43ed6d27f09 100644
--- a/packages/paperclip-runner/src/drivers/acpx/codex-acpx-driver.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/codex-acpx-driver.ts
@@ -59,6 +59,7 @@ import {
 } from "../runner-tool-bridge.js";
 import {
   DEFAULT_CODEX_ACPX_RUNTIME_SHUTDOWN_BOUND_MS,
+  AcpxProviderProcessLostError,
   openCodexAcpxRuntime,
 } from "./codex-runtime-adapter.js";
 import { normalizeAcpxPermission } from "./acp-permission-adapter.js";
@@ -1568,7 +1569,7 @@ class CodexAcpxSession implements HarnessSession {
     } catch (error) {
       if (this.#terminalTurns.has(turnId)) return;
       if (error instanceof TerminalEventCapacityError) throw error;
-      this.#cancelPendingRuntimeRequests("provider turn failed", turnId);
+      this.#cancelPendingRuntimeRequests(error instanceof AcpxProviderProcessLostError ? error : "provider turn failed", turnId);
       if (this.#closed || this.#closingStarted) {
         const reaffirmedSemanticResult =
           this.#pendingSemanticTransfer?.turnId === turnId
@@ -1599,7 +1600,7 @@ class CodexAcpxSession implements HarnessSession {
               : { reaffirmedSemanticResult }),
           }),
           "turn.failed",
-          { status: "failed", error: { message: safeMessage(error) } },
+          { status: "failed", error: { ...(error instanceof AcpxProviderProcessLostError ? { code: error.code } : {}), message: safeMessage(error) } },
         );
       }
     }
@@ -1743,9 +1744,7 @@ class CodexAcpxSession implements HarnessSession {
         const pending = this.#pendingRuntimeRequests.get(requestId);
         if (!pending || pending.settling || !this.#pendingRuntimeRequests.delete(requestId)) return;
         pending.cleanup();
-        this.#emit("runtime_request.cancelled", harnessRuntimeRequestOutcome(request, {
-          action: "cancel", reason: "provider request aborted",
-        }), { turnId, itemId });
+        this.#emitRequestAbort(request, context.signal.reason);
         settle(input.cancel());
       };
       this.#pendingRuntimeRequests.set(requestId, {
@@ -1794,9 +1793,7 @@ class CodexAcpxSession implements HarnessSession {
         const pending = this.#pendingRuntimeRequests.get(requestId);
         if (!pending || pending.settling || !this.#pendingRuntimeRequests.delete(requestId)) return;
         pending.cleanup();
-        this.#emit("runtime_request.cancelled", harnessRuntimeRequestOutcome(runtimeRequest, {
-          action: "cancel", reason: "provider request aborted",
-        }), { turnId, itemId: requestId });
+        this.#emitRequestAbort(runtimeRequest, signal.reason);
         settle({ outcome: "cancel" });
       };
       this.#pendingRuntimeRequests.set(requestId, {
@@ -1930,14 +1927,7 @@ class CodexAcpxSession implements HarnessSession {
         if (!pending || pending.settling) return;
         if (!this.#pendingRuntimeRequests.delete(requestId)) return;
         pending.cleanup();
-        this.#emit(
-          "runtime_request.cancelled",
-          harnessRuntimeRequestOutcome(runtimeRequest, {
-            action: "cancel",
-            reason: "provider request aborted",
-          }),
-          { turnId, itemId: requestId },
-        );
+        this.#emitRequestAbort(runtimeRequest, context.signal.reason);
         settle({ action: "cancel" });
       };
       context.signal.addEventListener("abort", cancel, { once: true });
@@ -1955,22 +1945,23 @@ class CodexAcpxSession implements HarnessSession {
     });
   }
 
-  #cancelPendingRuntimeRequests(reason: string, turnId?: string): void {
+  #emitRequestAbort(request: HarnessRuntimeRequest, reason: unknown): void {
+    const lost = reason instanceof AcpxProviderProcessLostError;
+    this.#emit(lost ? "runtime_request.expired" : "runtime_request.cancelled", {
+      ...harnessRuntimeRequestOutcome(request, {
+        ...(lost ? {} : { action: "cancel" as const }),
+        reason: lost ? "provider_process_lost" : typeof reason === "string" ? boundedText(reason, 1_000) : "provider request aborted",
+      }),
+      ...(lost ? { replayAllowed: false } : {}),
+    }, { turnId: request.turnId, itemId: request.itemId });
+  }
+
+  #cancelPendingRuntimeRequests(reason: string | AcpxProviderProcessLostError, turnId?: string): void {
     for (const [requestId, pending] of this.#pendingRuntimeRequests) {
       if (turnId && pending.request.turnId !== turnId) continue;
       if (!this.#pendingRuntimeRequests.delete(requestId)) continue;
       pending.cleanup();
-      this.#emit(
-        "runtime_request.cancelled",
-        harnessRuntimeRequestOutcome(pending.request, {
-          action: "cancel",
-          reason: boundedText(safeMessage(reason), 1_000),
-        }),
-        {
-          turnId: pending.request.turnId,
-          itemId: pending.request.itemId,
-        },
-      );
+      this.#emitRequestAbort(pending.request, reason);
       pending.cancel();
     }
   }
diff --git a/packages/paperclip-runner/src/drivers/acpx/codex-credentials.test.ts b/packages/paperclip-runner/src/drivers/acpx/codex-credentials.test.ts
index 8a18b200122..6c29f84e5b7 100644
--- a/packages/paperclip-runner/src/drivers/acpx/codex-credentials.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/codex-credentials.test.ts
@@ -813,9 +813,10 @@ describe("managed Codex credentials", () => {
   it.runIf(process.platform !== "win32")(
     "shares the four-slot parent filesystem budget across fresh modules",
     async () => {
-      const fixtures = await Promise.all(
-        Array.from({ length: 5 }, () => credentialFixture()),
-      );
+      // Reserve fixture quorum candidates before holding filesystem operations.
+      // Otherwise an unrelated loopback listener can reject staging before
+      // fourOpens resolves, leaving an unhandled rejection and a false timeout.
+      const fixtures = await credentialFixturesWithAvailableQuorum(5);
       const retainedHomes = new Set(
         fixtures.slice(0, 4).map((fixture) => fixture.home),
       );
@@ -1652,6 +1653,38 @@ async function credentialFixture(): Promise<{ root: string; home: string }> {
   return { root, home: await realpath(home) };
 }
 
+async function credentialFixturesWithAvailableQuorum(count: number) {
+  const fixtures: Awaited<ReturnType<typeof credentialFixture>>[] = [];
+  const reservations: Array<Awaited<ReturnType<typeof listenSilently>>> = [];
+  try {
+    for (let index = 0; index < count; index++) {
+      let prepared = false;
+      for (let attempt = 0; attempt < 8; attempt++) {
+        const fixture = await credentialFixture();
+        const owned: Array<Awaited<ReturnType<typeof listenSilently>>> = [];
+        try {
+          for (const port of credentialLeasePorts(fixture.home)) {
+            owned.push(await listenSilently(port));
+          }
+          fixtures.push(fixture);
+          reservations.push(...owned);
+          prepared = true;
+          break;
+        } catch (error) {
+          await Promise.all(owned.map((listener) => listener.close()));
+          if ((error as NodeJS.ErrnoException).code !== "EADDRINUSE" || attempt === 7) throw error;
+        }
+      }
+      if (!prepared) throw new Error("Credential fixture quorum preparation failed");
+    }
+    return fixtures;
+  } finally {
+    // Fixture setup alone may choose another unused home. Production staging
+    // still runs once, and a foreign bind racing this handoff remains a failure.
+    await Promise.all(reservations.map((listener) => listener.close()));
+  }
+}
+
 async function silentPrimaryQuorumFixture(
   nextFixture = credentialFixture,
   occupiedIndex: 0 | 1 = 0,
diff --git a/packages/paperclip-runner/src/drivers/acpx/codex-runtime-adapter.test.ts b/packages/paperclip-runner/src/drivers/acpx/codex-runtime-adapter.test.ts
index a5457816bff..3058f734fef 100644
--- a/packages/paperclip-runner/src/drivers/acpx/codex-runtime-adapter.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/codex-runtime-adapter.test.ts
@@ -29,6 +29,141 @@ const HANDLE: AcpRuntimeHandle = {
 };
 
 describe("Codex ACPX runtime adapter", () => {
+  it.each(["blocked", "ended"] as const)("settles a %s Copilot stream on verified provider death without replaying the permission", async (streamState) => {
+    const pending = pendingExtensionTurn("death-turn");
+    if (streamState === "ended") pending.turn.events = (async function* () {})();
+    const runtime = fakeRuntime();
+    vi.mocked(runtime.startTurn).mockReturnValue(pending.turn);
+    const child = fakeChild();
+    const command = fakeCommand();
+    vi.mocked(command.spawn).mockReturnValue(child);
+    let exit!: () => void;
+    const providerExit = new Promise<void>(resolve => { exit = resolve; });
+    let created!: AcpRuntimeOptions;
+    const options = openOptions(command);
+    options.profile = { ...options.profile, agent: "copilot" };
+    options.permissionMode = "approve-paperclip";
+    const port = await openCodexAcpxRuntime(options, {
+      createRegistry: () => registry(), createStore: () => store(),
+      awaitProviderOwnership: providerOwnershipEstablished,
+      awaitProviderExit: () => providerExit,
+      createRuntime: value => { created = value; return runtimeWithProvider(runtime, value); },
+    });
+    let answer!: (value: { outcome: "allow_once" }) => void;
+    let callbackSignal!: AbortSignal;
+    const handler = vi.fn((_request, context) => {
+      callbackSignal = context.signal;
+      return new Promise<{ outcome: "allow_once" }>(resolve => { answer = resolve; });
+    });
+    const turn = port.startTurn({ text: "Write the file", requestId: "death-turn", onPermissionRequest: handler });
+    await turn.promptStarted;
+    const events = turn.events[Symbol.asyncIterator]();
+    const draining = expect(events.next()).rejects.toMatchObject({ code: "ACPX_PROVIDER_PROCESS_LOST" });
+    const settled = expect(turn.result).rejects.toMatchObject({ code: "ACPX_PROVIDER_PROCESS_LOST" });
+    const request = created.onPermissionRequest!({ sessionId: "backend-1", raw: { sessionId: "backend-1" }, inferredKind: "edit" } as never, { signal: new AbortController().signal });
+    await vi.waitFor(() => expect(handler).toHaveBeenCalledOnce());
+    // The guardian remains live: only independent provider EOF proves death.
+    expect(child.exitCode).toBeNull();
+    exit();
+    await Promise.all([draining, settled]);
+    expect(callbackSignal.aborted).toBe(true);
+    answer({ outcome: "allow_once" });
+    await expect(request).resolves.toEqual({ outcome: "cancel" });
+    expect(() => port.startTurn({ text: "Replay", requestId: "replay" })).toThrow("provider exited");
+    expect(runtime.startTurn).toHaveBeenCalledOnce();
+    pending.settle();
+    await port.close({ reason: "test finished" });
+    expect(child.kill).toHaveBeenCalled();
+  });
+
+  it("refuses Copilot replay when native disconnection precedes the independent exit proof", async () => {
+    const pending = pendingExtensionTurn("disconnect-turn");
+    let disconnect!: () => void;
+    const failed = new Promise<{ status: "failed"; error: { code: "RUNTIME"; detailCode: "AGENT_DISCONNECTED"; message: string } }>(resolve => {
+      disconnect = () => resolve({ status: "failed", error: { code: "RUNTIME", detailCode: "AGENT_DISCONNECTED", message: "Native ACP transport disconnected" } });
+    });
+    const runtime = fakeRuntime();
+    vi.mocked(runtime.startTurn).mockReturnValue({ ...pending.turn, result: failed });
+    const child = fakeChild();
+    const command = fakeCommand();
+    vi.mocked(command.spawn).mockReturnValue(child);
+    let exit!: () => void;
+    const providerExit = new Promise<void>(resolve => { exit = resolve; });
+    let created!: AcpRuntimeOptions;
+    const options = openOptions(command);
+    options.profile = { ...options.profile, agent: "copilot" };
+    options.permissionMode = "approve-paperclip";
+    const port = await openCodexAcpxRuntime(options, {
+      createRegistry: () => registry(), createStore: () => store(),
+      awaitProviderOwnership: providerOwnershipEstablished,
+      awaitProviderExit: () => providerExit,
+      createRuntime: value => { created = value; return runtimeWithProvider(runtime, value); },
+    });
+    let answer!: (value: { outcome: "allow_once" }) => void;
+    let callbackSignal!: AbortSignal;
+    const handler = vi.fn((_request, context) => {
+      callbackSignal = context.signal;
+      return new Promise<{ outcome: "allow_once" }>(resolve => { answer = resolve; });
+    });
+    try {
+      const turn = port.startTurn({ text: "Write", requestId: "disconnect-turn", onPermissionRequest: handler });
+      await turn.promptStarted;
+      const request = created.onPermissionRequest!({ sessionId: "backend-1", raw: { sessionId: "backend-1" }, inferredKind: "edit" } as never, { signal: new AbortController().signal });
+      await vi.waitFor(() => expect(handler).toHaveBeenCalledOnce());
+      disconnect();
+      await expect(turn.result).rejects.toMatchObject({ code: "ACPX_PROVIDER_PROCESS_LOST" });
+      await expect((async () => { for await (const _event of turn.events) { /* drain */ } })())
+        .rejects.toMatchObject({ code: "ACPX_PROVIDER_PROCESS_LOST" });
+      expect(callbackSignal.aborted).toBe(true);
+      answer({ outcome: "allow_once" });
+      await expect(request).resolves.toEqual({ outcome: "cancel" });
+      expect(() => port.startTurn({ text: "Replay", requestId: "replay" })).toThrow("provider exited");
+      expect(runtime.startTurn).toHaveBeenCalledOnce();
+      // A typed disconnect does not manufacture independent process-exit proof.
+      // Cleanup still owns the live guardian and waits for the separate proof.
+      expect(child.exitCode).toBeNull();
+    } finally {
+      pending.settle();
+      exit();
+      await port.close({ reason: "disconnect race verified" });
+    }
+  });
+
+  it("keeps a Copilot callback deliverable when only the guardian exits", async () => {
+    const pending = pendingExtensionTurn("preserved-turn");
+    const runtime = fakeRuntime();
+    vi.mocked(runtime.startTurn).mockReturnValue(pending.turn);
+    let created!: AcpRuntimeOptions;
+    const child = fakeChild();
+    const command = fakeCommand();
+    vi.mocked(command.spawn).mockReturnValue(child);
+    let exit!: () => void;
+    const providerExit = new Promise<void>(resolve => { exit = resolve; });
+    const options = openOptions(command);
+    options.profile = { ...options.profile, agent: "copilot" };
+    options.permissionMode = "approve-paperclip";
+    const port = await openCodexAcpxRuntime(options, {
+      createRegistry: () => registry(), createStore: () => store(),
+      awaitProviderOwnership: providerOwnershipEstablished, awaitProviderExit: () => providerExit,
+      createRuntime: value => { created = value; return runtimeWithProvider(runtime, value); },
+    });
+    let answer!: (value: { outcome: "allow_once" }) => void;
+    const handler = vi.fn(() => new Promise<{ outcome: "allow_once" }>(resolve => { answer = resolve; }));
+    const turn = port.startTurn({ text: "Write", requestId: "preserved-turn", onPermissionRequest: handler });
+    const request = created.onPermissionRequest!({ sessionId: "backend-1", raw: { sessionId: "backend-1" }, inferredKind: "edit" } as never, { signal: new AbortController().signal });
+    await vi.waitFor(() => expect(handler).toHaveBeenCalledOnce());
+    child.exitCode = 0;
+    child.emit("exit", 0, null);
+    // Guardian exit cannot replace the provider-only lifetime observation.
+    await new Promise(resolve => setTimeout(resolve, 10));
+    answer({ outcome: "allow_once" });
+    await expect(request).resolves.toEqual({ outcome: "allow_once" });
+    pending.settle();
+    await expect(turn.result).resolves.toMatchObject({ status: "completed" });
+    exit();
+    await port.close({ reason: "test finished" });
+  });
+
   it("installs per-connection policy authority only for Copilot and rejects native commands before a turn starts", async () => {
     for (const agent of ["copilot", "codex", "claude", "grok"] as const) {
       const runtime = fakeRuntime();
diff --git a/packages/paperclip-runner/src/drivers/acpx/codex-runtime-adapter.ts b/packages/paperclip-runner/src/drivers/acpx/codex-runtime-adapter.ts
index 9255b0bc94e..d67ba30a5a9 100644
--- a/packages/paperclip-runner/src/drivers/acpx/codex-runtime-adapter.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/codex-runtime-adapter.ts
@@ -102,6 +102,14 @@ interface AcpxRuntimeExtensionBoundary {
   steering: AcpxRuntimeSteeringCapability | null;
 }
 
+export class AcpxProviderProcessLostError extends Error {
+  readonly code = "ACPX_PROVIDER_PROCESS_LOST";
+  constructor(message = "The owned ACPX provider exited during its active turn") {
+    super(message);
+    this.name = "AcpxProviderProcessLostError";
+  }
+}
+
 class AcpxRuntimeCloseTimeoutError extends Error {
   constructor() {
     super("ACPX runtime close timed out");
@@ -605,6 +613,7 @@ export async function openQualifiedAcpxRuntime(
       commandLaunches,
       permissionBoundary,
       extensionBoundary,
+      options.profile.agent === "copilot",
       options.profile.agent === "copilot" ? assertCopilotPromptPolicy : undefined,
     );
   } catch (error) {
@@ -1035,6 +1044,7 @@ function runtimePort(
   commandLaunches: { count: number; refreshConsumedCommand?: () => Promise<void> },
   permissionBoundary: { active: AbortController | null; hasAdmittedTurn: boolean; handler?: AcpRuntimeOptions["onPermissionRequest"] },
   extensionBoundary: AcpxRuntimeExtensionBoundary,
+  monitorProviderDeath: boolean,
   assertPromptPolicy?: (text: string) => void,
 ): AcpxRuntimePort {
   extensionBoundary.sessionIds = new Set([identity.backendSessionId]);
@@ -1078,6 +1088,7 @@ function runtimePort(
     pendingExternalIntent: boolean;
   };
   let runtimeClosed = false;
+  let providerProcessLost = false;
   let runtimeCloseAttempt: RuntimeCloseAttempt | undefined;
   let lateReconciliationOwner: Promise<void> | undefined;
   // Each independently observed late failure receives a bounded reconciliation
@@ -1393,10 +1404,12 @@ function runtimePort(
         }
       : {}),
     startTurn(input) {
+      if (providerProcessLost) throw new AcpxProviderProcessLostError();
       assertPromptPolicy?.(input.text);
       if (extensionBoundary.active) throw new Error("ACPX runtime already has an active turn");
       const approval = new AbortController();
       const controller = new AbortController();
+      const providerDeath = new AbortController();
       const extensionTurn: AcpxRuntimeExtensionTurn = {
         requestId: input.requestId, sessionId: identity.backendSessionId, controller,
         signal: input.signal ? AbortSignal.any([controller.signal, input.signal, approval.signal]) : AbortSignal.any([controller.signal, approval.signal]),
@@ -1404,7 +1417,25 @@ function runtimePort(
         onRequest: input.onExtensionRequest, onNotification: input.onExtensionNotification,
       };
       extensionBoundary.active = extensionTurn;
+      // A guardian can outlive the provider while ACP awaits a callback.
+      // Native exit or a typed ACP agent disconnect retires this turn; losing
+      // the controller connection must preserve deliverable input instead.
+      // Cleanup still requires the independent provider-only lifetime proof.
+      const retireProviderTurn = (error = new AcpxProviderProcessLostError()): void => {
+        providerProcessLost = true;
+        providerDeath.abort(error);
+        approval.abort(error);
+        controller.abort(error);
+      };
+      const stopWatchingProviderExit = !monitorProviderDeath
+        ? () => undefined
+        : children.watchProviderExit(() => {
+          if (!runtimeCloseAttempt && !runtimeClosed && !extensionTurn.signal.aborted && extensionBoundary.active === extensionTurn) {
+            retireProviderTurn();
+          }
+        });
       const releaseExtensionTurn = (): void => {
+        stopWatchingProviderExit();
         controller.abort(new Error("ACPX extension turn expired"));
         if (extensionBoundary.active === extensionTurn) extensionBoundary.active = null;
       };
@@ -1434,9 +1465,18 @@ function runtimePort(
         throw error;
       }
       const guarded = turnWithVerifiedLifetimeOwnership(turn, finishOwnershipAdmission);
-      extensionTurn.promptStarted = guarded.promptStarted;
-      const result = guarded.result.then(
+      const promptStarted = abortableExtensionResult(guarded.promptStarted, providerDeath.signal);
+      void promptStarted.catch(() => undefined);
+      extensionTurn.promptStarted = promptStarted;
+      const result = abortableExtensionResult(guarded.result, providerDeath.signal).then(
         (value) => {
+          if (monitorProviderDeath && value.status === "failed"
+            && (value.error?.code === "AGENT_DISCONNECTED" || value.error?.detailCode === "AGENT_DISCONNECTED")) {
+            // ACP can terminalize before the independent exit observer runs.
+            // Retire callbacks and the session before finally removes the
+            // observer, so a late answer cannot admit another native turn.
+            retireProviderTurn(new AcpxProviderProcessLostError("The owned ACPX provider disconnected during its active turn"));
+          }
           approval.signal.throwIfAborted();
           // ACPX may resolve its own permission policy before invoking the
           // host callback. Keep that typed denial on the same runner outcome.
@@ -1453,6 +1493,7 @@ function runtimePort(
       void result.catch(() => undefined);
       return {
         ...guarded,
+        promptStarted,
         result,
         cancel: (input) => {
           controller.abort(new Error("ACPX extension turn cancelled"));
@@ -1463,16 +1504,28 @@ function runtimePort(
           return guarded.closeStream(input);
         },
         events: (async function* () {
+          const iterator = guarded.events[Symbol.asyncIterator]();
           try {
-            for await (const event of guarded.events) {
+            for (;;) {
+              const next = await abortableExtensionResult(iterator.next(), providerDeath.signal);
+              if (next.done) break;
               approval.signal.throwIfAborted();
-              yield event;
+              yield next.value;
             }
           } catch (error) {
             approval.signal.throwIfAborted();
             throw error;
+          } finally {
+            // A broken provider may never release its iterator. Observe its
+            // eventual close without delaying the failed turn's publication.
+            void iterator.return?.().catch(() => undefined);
           }
           approval.signal.throwIfAborted();
+          // Copilot's transport can end its event iterator before independent
+          // provider-exit proof settles the pending permission and turn result.
+          // Do not publish a successful stream end while that turn still owns
+          // an unanswered callback or an unreported failure.
+          if (monitorProviderDeath) await result;
         })(),
       };
     },
@@ -1729,6 +1782,7 @@ class SpawnedChildSet {
   readonly #providerExits = new Map<ChildProcess, ProviderExitObservation>();
   readonly #terminations = new Map<ChildProcess, Promise<unknown[]>>();
   readonly #lifetimeOwnership: Promise<void>[] = [];
+  readonly #exitWatchers = new Set<() => void>();
   #lifetimeOwnershipSealed = false;
   #sealed = false;
 
@@ -1814,6 +1868,11 @@ class SpawnedChildSet {
     };
   }
 
+  watchProviderExit(observer: () => void): () => void {
+    this.#exitWatchers.add(observer);
+    return () => { this.#exitWatchers.delete(observer); };
+  }
+
   #track(child: ChildProcess, providerExit: ProviderExitObservation): void {
     this.#children.add(child);
     const onError = (error: unknown) => this.#errors.add(error);
@@ -1840,6 +1899,7 @@ class SpawnedChildSet {
     providerExit.observe((outcome) => {
       if (outcome.exited) {
         providerExited = true;
+        for (const observer of this.#exitWatchers) observer();
         forgetIfReleased();
       } else {
         this.#errors.add(outcome.error);
diff --git a/packages/paperclip-runner/src/drivers/acpx/copilot-extension-adapter.ts b/packages/paperclip-runner/src/drivers/acpx/copilot-extension-adapter.ts
index 592e5813e9e..a3b766c8c57 100644
--- a/packages/paperclip-runner/src/drivers/acpx/copilot-extension-adapter.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/copilot-extension-adapter.ts
@@ -82,7 +82,11 @@ function detailFields(data: Record<string, unknown>): Array<{ name: string; valu
       // Preserve the complete field path for sensitive-key redaction. The
       // normalizer admits only known, typed counters/flags: their numeric token
       // counts are not credentials, so they retain value-only redaction.
-      const safe = typeof value === "string" ? name.split(".").reduce<unknown>((safe, segment) => redactSemanticValue(safe, segment), value) : value;
+      // Flattening must not discard a sensitive ancestor such as credentials.
+      // Apply the shared key rule to each path segment before publishing it.
+      const safe = typeof value === "string"
+        ? name.split(".").reduce<unknown>((entry, key) => redactSemanticValue(entry, key), value)
+        : value;
       details.push({ name: bounded(name, 160), value: bounded(String(safe), 4000) });
     }
   };
diff --git a/packages/paperclip-runner/src/drivers/acpx/copilot-installation.ts b/packages/paperclip-runner/src/drivers/acpx/copilot-installation.ts
index 6dce44a0e3f..12c372bffff 100644
--- a/packages/paperclip-runner/src/drivers/acpx/copilot-installation.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/copilot-installation.ts
@@ -24,14 +24,17 @@ export async function verifyCopilotInstallation(profile: AcpxReleaseProfile): Pr
     throw new Error(`Copilot native distribution is not pinned for ${platform}`);
   }
   const distributionRoot = join(resolveRunnerProviderAssetsRoot(import.meta.url, "copilot"), platform);
-  const native = await verifyNativeAcpxInstallation({
+  let native: VerifiedAcpxInstallation;
+  try { native = await verifyNativeAcpxInstallation({
     distributionRoot,
     manifestPath: join(distributionRoot, ".paperclip-copilot-closure.json"),
     expectedClosureSha256: COPILOT_CLOSURE_SHA256[platform as keyof typeof COPILOT_CLOSURE_SHA256],
     executable: "copilot", fixedArguments: COPILOT_LAUNCH_ARGUMENTS,
     isolatedCacheEnvironmentName: "COPILOT_PKG_CACHE_HOME",
     copilotDistributionDirectory: "distribution",
-  });
+  }); } catch {
+    throw Object.assign(new Error("Install the verified Copilot runtime beside the admitted sidecar."), { code: "COPILOT_INSTALLATION_INVALID", retryable: false });
+  }
   // The host identity binds the versioned profile. Native admission independently
   // binds the complete platform closure before creating each single-use lease.
   return Object.freeze({ ...native, commandDigest: expected.commandDigest });
diff --git a/packages/paperclip-runner/src/drivers/acpx/copilot-permission-context.ts b/packages/paperclip-runner/src/drivers/acpx/copilot-permission-context.ts
index d0a24575e06..96c59036fe6 100644
--- a/packages/paperclip-runner/src/drivers/acpx/copilot-permission-context.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/copilot-permission-context.ts
@@ -1,10 +1,35 @@
 import { redactPaperclipSemanticValue } from "../../semantic-tools/redaction.js";
 import { safeAcpxLocations } from "./safe-locations.js";
+import { lstatSync, realpathSync } from "node:fs";
+import { basename, dirname, isAbsolute, join } from "node:path";
 
 export const COPILOT_PERMISSION_CONTEXT_CONTRACT = "copilot-edit-permission-context-v1";
 const record = (value: unknown): Record<string, unknown> =>
   value !== null && typeof value === "object" && !Array.isArray(value) ? value as Record<string, unknown> : {};
 
+/** Native providers can spell an absolute workspace path through a host alias
+ * (macOS /tmp and /private/tmp). Attest the real entry, or its existing parent
+ * for a new file, before converting it to a display target. */
+function aliasedLocation(path: string, cwd: string): string | undefined {
+  if (!isAbsolute(path)) return;
+  try {
+    const canonicalCwd = realpathSync(cwd);
+    let canonicalPath: string;
+    try {
+      lstatSync(path);
+      canonicalPath = realpathSync(path);
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "ENOENT") return;
+      // A dangling symlink must not become an apparently safe create target.
+      try { lstatSync(path); return; } catch (missing) {
+        if ((missing as NodeJS.ErrnoException).code !== "ENOENT") return;
+      }
+      canonicalPath = join(realpathSync(dirname(path)), basename(path));
+    }
+    return safeAcpxLocations([{ path: canonicalPath }], canonicalCwd, "edit")[0]?.path as string | undefined;
+  } catch { return; }
+}
+
 /** Display context only; this does not authorize filesystem access. */
 export function safeCopilotEditTarget(value: unknown, workingDirectory: string | undefined): string | undefined {
   const call = record(value);
@@ -14,7 +39,12 @@ export function safeCopilotEditTarget(value: unknown, workingDirectory: string |
   if (Array.isArray(call.locations) && (call.locations.length > 16 || call.locations.some(x => typeof record(x).path !== "string"))) return;
   const paths = [input.path, input.fileName, ...(Array.isArray(call.locations) ? call.locations.map(x => record(x).path) : [])].filter(x => x !== undefined);
   if (!paths.length || paths.some(x => typeof x !== "string" || !x || x.trim() !== x || x.length > 2048 || /[\\\p{Cc}\p{Cf}\p{Zl}\p{Zp}]/u.test(x))) return;
-  const safe = paths.flatMap(path => safeAcpxLocations([{ path }], workingDirectory, call.kind, call.title));
+  const safe = paths.flatMap(path => {
+    const locations = safeAcpxLocations([{ path }], workingDirectory, call.kind, call.title);
+    if (locations.length) return locations;
+    const aliased = aliasedLocation(path as string, workingDirectory);
+    return aliased ? [{ path: aliased }] : [];
+  });
   const names = safe.map(x => x.path).filter((x): x is string => typeof x === "string" && x.length <= 1024 && x.trim() === x && !x.includes(":"));
   if (names.length !== paths.length || new Set(names).size !== 1) return;
   const target = names[0];
diff --git a/packages/paperclip-runner/src/drivers/acpx/copilot-profile.ts b/packages/paperclip-runner/src/drivers/acpx/copilot-profile.ts
index 2a88ab552ff..73c8d599a05 100644
--- a/packages/paperclip-runner/src/drivers/acpx/copilot-profile.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/copilot-profile.ts
@@ -5,6 +5,7 @@ export const COPILOT_VERSION = "1.0.88" as const;
 export const COPILOT_SYSTEM_INSTRUCTIONS_FILE = "copilot-instructions.md" as const;
 export const COPILOT_SYSTEM_INSTRUCTION_DELIVERY = "COPILOT_HOME/copilot-instructions.md:replace-under-lifetime-lease-before-launch:v1" as const;
 export const COPILOT_CREDENTIAL_ENVIRONMENT_NAME = "COPILOT_GITHUB_TOKEN" as const;
+export const COPILOT_TASK_ORIENTATION_INSTRUCTIONS = "At the start of every task turn, use the paperclip MCP server's dedicated get_task_context tool with {} and wait for its successful result before task work, report_progress, or any other task-dependent mutation. This is an advertised MCP tool, not an HTTP API route: do not use search_api or call_api to discover or substitute for get_task_context. Loaded instructions, seed state, task descriptions, and prior-turn context do not replace this read. Decide the next action from the returned context. Do not issue the context read and a dependent action in parallel. If this tool is unavailable or its read fails, report the failure and do not perform dependent actions." as const;
 
 // Keep permission callbacks enabled even when Paperclip's policy is approve-all.
 // In particular COPILOT_ALLOW_ALL=true also trusts workspace hooks/plugins/MCP.
diff --git a/packages/paperclip-runner/src/drivers/acpx/generated-profiles.ts b/packages/paperclip-runner/src/drivers/acpx/generated-profiles.ts
index 3a0bf38cf33..e63e7896fdb 100644
--- a/packages/paperclip-runner/src/drivers/acpx/generated-profiles.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/generated-profiles.ts
@@ -48,13 +48,12 @@ export const QUALIFIED_ACPX_PROFILE_DATA = {
     "protocolVersion": 1,
     "acpxVersion": "0.13.1",
     "agent": "copilot",
-    "agentProfileVersion": 17,
+    "agentProfileVersion": 34,
     "agentServerPackage": "@github/copilot",
     "agentServerVersion": "1.0.88",
     "agentRuntimePackage": null,
     "agentRuntimeVersion": null,
-    "commandDigest": "sha256:481d0852ae8272a90f9912723d540518a874a0da65a9070e33b52ea1a14cbd7f",
-    "qualificationStatus": "pending",
+    "commandDigest": "sha256:6dde98a9dbadf22f17ca28f133dbe2a65fa199827741190f569704e44bdc20ed",
     "permissionPolicy": "interactive"
   },
   "claude": {
diff --git a/packages/paperclip-runner/src/drivers/acpx/installation-integrity.ts b/packages/paperclip-runner/src/drivers/acpx/installation-integrity.ts
index 05fd89fdc47..836212c19ec 100644
--- a/packages/paperclip-runner/src/drivers/acpx/installation-integrity.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/installation-integrity.ts
@@ -1444,7 +1444,7 @@ function commandLease(
   privateSnapshot: AcpxPrivateSnapshot | null,
 ): VerifiedAcpxCommandLease {
   let consumed = false;
-  let directoriesReleased = false;
+  let directoriesRelease: Promise<void> | undefined;
   let spawnedChild: ChildProcess | null = null;
   let childExit: Promise<void> | null = null;
   let snapshotCleanup: Promise<void> | null = null;
@@ -1456,24 +1456,23 @@ function commandLease(
     }
     return snapshotCleanup;
   };
-  const releaseDirectories = async (): Promise<void> => {
-    if (directoriesReleased) return;
-    directoriesReleased = true;
-    await Promise.all([
+  const releaseDirectories = (): Promise<void> => {
+    return (directoriesRelease ??= Promise.all([
       commandDirectory.close(),
       ...dependencyAncestors.map((handle) => handle.close()),
       ...(providerRuntimeExecutable === null
         ? []
         : [providerRuntimeExecutable.close()]),
-    ]);
+    ]).then(() => undefined));
   };
   const releaseDirectoriesBestEffort = (): void => {
     void releaseDirectories().catch(() => undefined);
   };
   const close = async (): Promise<void> => {
-    if (consumed && privateSnapshot === null) return;
+    const wasConsumed = consumed;
     consumed = true;
-    verifiedBytes.fill(0);
+    // A spawned command owns its source buffer until its pipe write completes.
+    if (!wasConsumed) verifiedBytes.fill(0);
     await releaseDirectories();
     // A spawned provider may still read the snapshot. Runtime shutdown runs in
     // parallel and retires that child; do not remove its bytes or report command
@@ -1568,7 +1567,7 @@ function commandLease(
           environment[VERIFIED_PROVIDER_RUNTIME_TARGET_ENV] =
             providerRuntimeEnvironmentVariable;
         }
-        child = spawnChildProcess(
+        child = spawnedChild = spawnChildProcess(
           runtimeHandoff.executable,
           guarded
             ? [
diff --git a/packages/paperclip-runner/src/drivers/acpx/native-distribution-integrity.test.ts b/packages/paperclip-runner/src/drivers/acpx/native-distribution-integrity.test.ts
index 702f523549a..438a3db12e3 100644
--- a/packages/paperclip-runner/src/drivers/acpx/native-distribution-integrity.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/native-distribution-integrity.test.ts
@@ -10,6 +10,9 @@ import type { ChildProcess } from "node:child_process";
 import { afterEach, describe, expect, it, vi } from "vitest";
 import { awaitVerifiedAcpxProviderExit, awaitVerifiedAcpxProviderOwnership, verifyNativeAcpxInstallation } from "./installation-integrity.js";
 import { createNativeAcpxDistributionSnapshot, readNativeAcpxDistributionEntries, parseNativeAcpxDistributionEntries, type NativeAcpxDistributionInput, type NativeAcpxDistributionEntry } from "./native-distribution-integrity.js";
+import { openCodexAcpxRuntime } from "./codex-runtime-adapter.js";
+import { createAcpxCommandLeaseOwner } from "./command-lease-owner.js";
+import { resolveQualifiedAcpxProfile } from "./qualified-profiles.js";
 
 vi.mock("node:fs/promises", async (importOriginal) => {
   const original = await importOriginal<typeof import("node:fs/promises")>();
@@ -322,6 +325,36 @@ describe("native ACPX execution closure", () => {
     expect(first.text).toMatch(/^native:fixed:.*paperclip-acpx-native-.*\/state$/);
     expect(first.text).not.toBe(second.text);
   });
+  it("reports failed deletion and retries retirement without relaunching", async () => {
+    const lease = await (await verifyNativeAcpxInstallation(await fixture())).openCommand();
+    const originalRemove = vi.mocked(rm).getMockImplementation()!;
+    const deleting = gate(); const holdDeletion = gate();
+    let privateRoot: string | undefined;
+    let failed = false;
+    vi.mocked(rm).mockImplementation(async (path, options) => {
+      if (String(path).includes("paperclip-acpx-native-") && !failed) {
+        privateRoot = String(path); deleting.release(); await holdDeletion.promise;
+        failed = true; throw new Error("snapshot deletion failed");
+      }
+      return await originalRemove(path, options);
+    });
+    try {
+      expect((await output(lease.spawn())).code).toBe(0);
+      await deleting.promise;
+      const rejected = expect(lease.close()).rejects.toThrow("snapshot deletion failed");
+      await new Promise<void>(resolve => setImmediate(resolve));
+      holdDeletion.release();
+      await rejected;
+      await expect(stat(privateRoot!)).resolves.toBeDefined();
+      expect(() => lease.spawn()).toThrow("closed");
+      await lease.close();
+      await expect(stat(privateRoot!)).rejects.toMatchObject({ code: "ENOENT" });
+    } finally {
+      holdDeletion.release();
+      vi.mocked(rm).mockImplementation(originalRemove);
+      await lease.close();
+    }
+  });
   // Copy/hash the real Node closure and start its bootstrap + owned shim. These
   // operations share the adjacent native-closure test's bounded allowance;
   // Vitest's 5s default is not a provider startup or permission deadline.
@@ -617,8 +650,114 @@ describe("native ACPX execution closure", () => {
       child.kill(); await Promise.all(fences.map(server => new Promise<void>((resolve, reject) => server.close(error => error ? reject(error) : resolve()))));
     }
   }, 15_000);
+
+  it("proves native child death before any caller cleanup, despite the launcher's pending guardian read", async () => {
+    const declaration = await fixture({ node: true, script: 'console.log(process.pid);setInterval(()=>{},1000);' });
+    const fences = await Promise.all([listen(), listen()]);
+    const fds = fences.map(server => (server as Server & { _handle?: { fd?: number } })._handle!.fd!);
+    const child = (await (await verifyNativeAcpxInstallation(declaration)).openCommand()).spawn([], {}, {
+      credentialFenceFds: [fds[0]!, fds[1]!], activateCredentialFenceOwner: async () => undefined,
+    });
+    const exited = once(child, "exit");
+    let deadline: ReturnType<typeof setTimeout> | undefined;
+    try {
+      const ready = once(child.stdout!, "data");
+      await awaitVerifiedAcpxProviderOwnership(child);
+      const [chunk] = await ready;
+      const nativePid = Number(String(chunk).trim());
+      expect(Number.isSafeInteger(nativePid) && nativePid > 0 && nativePid !== child.pid).toBe(true);
+      const proof = awaitVerifiedAcpxProviderExit(child);
+      process.kill(nativePid, "SIGKILL");
+      // No guardian.kill/close is allowed to manufacture the lifetime proof.
+      await Promise.race([proof, new Promise((_, reject) => {
+        deadline = setTimeout(() => reject(new Error("Native exit proof remained open after child death")), 3_000);
+      })]);
+      await exited;
+      expect(() => process.kill(nativePid, 0)).toThrow();
+    } finally {
+      clearTimeout(deadline);
+      if (child.exitCode === null && child.signalCode === null) child.kill("SIGKILL");
+      await exited;
+      await Promise.all(fences.map(server => new Promise<void>((resolve, reject) => server.close(error => error ? reject(error) : resolve()))));
+    }
+  }, 15_000);
+
+  it("expires a real ACPX permission on native child death without replaying its mutation", async () => {
+    // This is a deterministic ACP peer in a verified native distribution. No
+    // provider credential, remote service or model is involved.
+    const declaration = await fixture({ node: true, script: blockingCopilotPeer });
+    const fences = await Promise.all([listen(), listen()]);
+    const fds = fences.map(server => (server as Server & { _handle?: { fd?: number } })._handle!.fd!);
+    const installation = await verifyNativeAcpxInstallation(declaration);
+    const owner = createAcpxCommandLeaseOwner(await installation.openCommand(), installation.openCommand);
+    const pidFile = join(declaration.distributionRoot, "native-pid");
+    let port: Awaited<ReturnType<typeof openCodexAcpxRuntime>> | undefined;
+    let deadline: ReturnType<typeof setTimeout> | undefined;
+    try {
+      port = await openCodexAcpxRuntime({
+        command: owner.command, refreshConsumedCommand: owner.refreshConsumedCommand,
+        profile: resolveQualifiedAcpxProfile("copilot", "gpt-5.6-luna"),
+        cwd: declaration.distributionRoot, stateDirectory: join(declaration.distributionRoot, "state"),
+        providerSessionKey: "native-death-fixture", permissionMode: "approve-reads",
+        permissionPolicy: { autoApprove: ["read"], escalate: ["write"], defaultAction: "escalate" },
+        launchEnvironment: { PATH: "/usr/bin:/bin", NATIVE_TEST_PID_FILE: pidFile },
+        credentialFenceFds: [fds[0]!, fds[1]!], activateCredentialFenceOwner: async () => undefined,
+        systemInstructions: "Read task context before editing.", mcpServers: [], retainFailedAdmissionCleanup: () => undefined,
+      });
+      let pending!: () => void;
+      const requested = new Promise<void>(resolve => { pending = resolve; });
+      let callbackSignal!: AbortSignal;
+      let lateAnswer!: (value: { outcome: "allow_once" }) => void;
+      const handler = vi.fn((_request, context) => {
+        callbackSignal = context.signal; pending();
+        return new Promise<{ outcome: "allow_once" }>(resolve => { lateAnswer = resolve; });
+      });
+      const turn = port.startTurn({ text: "Attempt one edit", requestId: "native-death-turn", onPermissionRequest: handler });
+      const settled = expect(turn.result).rejects.toMatchObject({ code: "ACPX_PROVIDER_PROCESS_LOST" });
+      const draining = expect((async () => { for await (const _event of turn.events) { /* drain */ } })())
+        .rejects.toMatchObject({ code: "ACPX_PROVIDER_PROCESS_LOST" });
+      const bounded = new Promise<never>((_, reject) => {
+        deadline = setTimeout(() => reject(new Error("Real native ACPX death remained unsettled")), 5_000);
+      });
+      await Promise.race([requested, bounded]);
+      const nativePid = Number(await readFile(pidFile, "utf8"));
+      expect(Number.isSafeInteger(nativePid) && nativePid > 0).toBe(true);
+      process.kill(nativePid, "SIGKILL");
+      await Promise.race([Promise.all([settled, draining]), bounded]);
+      expect(callbackSignal.aborted).toBe(true);
+      lateAnswer({ outcome: "allow_once" });
+      expect(() => port!.startTurn({ text: "Replay", requestId: "replay" })).toThrow("provider exited");
+      expect(handler).toHaveBeenCalledOnce();
+      expect(() => process.kill(nativePid, 0)).toThrow();
+    } finally {
+      clearTimeout(deadline);
+      await port?.close({ reason: "offline native-death fixture complete" });
+      await owner.command.close();
+      await Promise.all(fences.map(server => new Promise<void>((resolve, reject) => server.close(error => error ? reject(error) : resolve()))));
+    }
+  }, 15_000);
 });
 
+const blockingCopilotPeer = String.raw`
+const send=m=>process.stdout.write(JSON.stringify({jsonrpc:'2.0',...m})+'\n');
+require('node:fs').writeFileSync(process.env.NATIVE_TEST_PID_FILE,String(process.pid));
+const mode='https://agentclientprotocol.com/protocol/session-modes#agent';
+const config=[{id:'mode',name:'Mode',type:'select',currentValue:mode,options:[{value:mode,name:'Agent'}]},
+ {id:'allow_all',name:'Allow all',type:'select',currentValue:'off',options:[{value:'off',name:'Off'}]},
+ {id:'model',name:'Model',type:'select',currentValue:'gpt-5.6-luna',options:[{value:'gpt-5.6-luna',name:'Luna'}]}];
+const snapshot={sessionId:'copilot-death-session',modes:{currentModeId:mode,availableModes:[{id:mode,name:'Agent'}]},configOptions:config,
+ models:{currentModelId:'gpt-5.6-luna',availableModels:[{modelId:'gpt-5.6-luna',name:'Luna'}]}};
+require('node:readline').createInterface({input:process.stdin}).on('line',line=>{
+ const m=JSON.parse(line);
+ if(m.method==='initialize')send({id:m.id,result:{protocolVersion:1,agentCapabilities:{loadSession:true},authMethods:[]}});
+ else if(['session/new','session/load'].includes(m.method))send({id:m.id,result:snapshot});
+ else if(m.method==='session/set_model'||m.method==='session/close')send({id:m.id,result:{}});
+ else if(m.method==='session/set_config_option')send({id:m.id,result:{configOptions:config}});
+ else if(m.method==='session/prompt')send({id:'pending-edit',method:'session/request_permission',params:{sessionId:'copilot-death-session',
+  toolCall:{toolCallId:'native-edit',title:'Write file',kind:'edit',status:'pending',rawInput:{path:'target.txt',content:'FORBIDDEN'}},
+  options:[{optionId:'allow',name:'Allow',kind:'allow_once'},{optionId:'deny',name:'Deny',kind:'reject_once'}]}});
+});`;
+
 async function listen(): Promise<Server> {
   const server = createServer(); server.listen(0, "127.0.0.1"); await once(server, "listening"); return server;
 }
diff --git a/packages/paperclip-runner/src/drivers/acpx/native-distribution-integrity.ts b/packages/paperclip-runner/src/drivers/acpx/native-distribution-integrity.ts
index 83f5b334da3..88f44996f74 100644
--- a/packages/paperclip-runner/src/drivers/acpx/native-distribution-integrity.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/native-distribution-integrity.ts
@@ -258,7 +258,12 @@ function nativeBootstrap(executable: string, executableDigest: string, args: str
     `if(require("node:crypto").createHash("sha256").update(fs.readFileSync(fd)).digest("hex")!==${JSON.stringify(executableDigest)})throw new Error("Native ACPX executable changed before spawn");`,
     'const stdio=guarded?[0,1,2,5,6,7,8]:[0,1,2]; const childExecutable=process.platform==="linux"?"/proc/self/fd/"+stdio.length:executable;stdio.push(fd);',
     `const child=spawn(childExecutable,${JSON.stringify(args)},{env,cwd:process.cwd(),shell:false,detached:false,stdio});fs.closeSync(fd);`,
-    'child.once("error",()=>process.exit(1)); child.once("exit",(code,signal)=>process.exit(signal?1:code??1));',
+    // A guarded Node launcher has a pending filesystem read on its guardian
+    // pipe. process.exit can wait for that read while the guardian waits for
+    // this launcher to exit. Retire the live owned group through the kernel;
+    // no saved PID/group identity or provider JavaScript cleanup is required.
+    'const retire=code=>{if(guarded){try{process.kill(0,"SIGKILL");}catch{process.kill(process.pid,"SIGKILL");}}else process.exit(code);};',
+    'child.once("error",()=>retire(1)); child.once("exit",(code,signal)=>retire(signal?1:code??1));',
     'for(const signal of ["SIGTERM","SIGINT","SIGHUP"])process.on(signal,()=>child.kill(signal));',
   ].join("\n");
 }
diff --git a/packages/paperclip-runner/src/drivers/acpx/profile-activity.ts b/packages/paperclip-runner/src/drivers/acpx/profile-activity.ts
index 294e392f0a3..58f956db47e 100644
--- a/packages/paperclip-runner/src/drivers/acpx/profile-activity.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/profile-activity.ts
@@ -28,7 +28,7 @@ export interface AcpxActivityAdapter {
 
 const adapters: Readonly<Record<string, AcpxActivityAdapter | undefined>> = {
   cursor: cursorActivityAdapter,
-  copilot: { createToolEvidence: createCopilotToolEvidence },
+  copilot: Object.freeze({ createToolEvidence: createCopilotToolEvidence }),
 };
 const noActivity: AcpxActivityAdapter = Object.freeze({});
 
diff --git a/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.test.ts b/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.test.ts
index 9ac4d51f87e..e706200ec77 100644
--- a/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.test.ts
@@ -19,6 +19,19 @@ describe("historical ACPX profile decoding", () => {
       expect(isSupportedAcpxProfileVersion(agent, 6)).toBe(false);
     }
   });
+  it("decodes retained Copilot revisions and the current profile without widening other providers", () => {
+    for (const version of [1, 5, 6, 12, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33]) {
+      expect(isSupportedAcpxProfileVersion("copilot", version)).toBe(true);
+    }
+    expect(isSupportedAcpxProfileVersion("copilot", 35)).toBe(false);
+    for (const agent of ["cursor", "pi", "claude", "codex", "grok"]) {
+      expect(isSupportedAcpxProfileVersion(agent, 23)).toBe(false);
+      expect(isSupportedAcpxProfileVersion(agent, 24)).toBe(false);
+      expect(isSupportedAcpxProfileVersion(agent, 25)).toBe(false);
+      expect(isSupportedAcpxProfileVersion(agent, 26)).toBe(false);
+      expect(isSupportedAcpxProfileVersion(agent, 27)).toBe(false);
+    }
+  });
   it.each([0, 1.5, "11", null, undefined, NaN])("rejects invalid revisions: %s", version => {
     expect(isSupportedAcpxProfileVersion("cursor", version)).toBe(false);
   });
diff --git a/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.ts b/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.ts
index 87dd26db7e9..fb546726832 100644
--- a/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/profile-compatibility.ts
@@ -2,13 +2,13 @@ import { QUALIFIED_ACPX_PROFILE_DATA } from "./generated-profiles.js";
 
 /** Decodable historical profile revisions, not permission to launch them.
  * Exact current profile/package/digest admission is checked separately. */
-type HistoricalAcpxProfileVersion = 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20;
+type HistoricalAcpxProfileVersion = 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33;
 type CurrentAcpxProfileVersion = typeof QUALIFIED_ACPX_PROFILE_DATA[keyof typeof QUALIFIED_ACPX_PROFILE_DATA]["agentProfileVersion"];
 export type AcpxProfileVersion = HistoricalAcpxProfileVersion | CurrentAcpxProfileVersion;
 
 const historicalVersions: Readonly<Record<string, readonly HistoricalAcpxProfileVersion[]>> = {
   pi: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20], claude: [1, 2, 3, 4, 5], codex: [1, 2, 3, 4, 5],
-  grok: [1, 2, 3, 4, 5], copilot: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16],
+  grok: [1, 2, 3, 4, 5], copilot: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33],
   cursor: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15],
 };
 
diff --git a/packages/paperclip-runner/src/drivers/acpx/profile-installation.ts b/packages/paperclip-runner/src/drivers/acpx/profile-installation.ts
index 0849c3fb79c..c2d7f11ace0 100644
--- a/packages/paperclip-runner/src/drivers/acpx/profile-installation.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/profile-installation.ts
@@ -1,9 +1,9 @@
+import { assertCopilotCredentials, classifyCopilotFailure } from "./copilot-profile.js";
+import { verifyCopilotInstallation } from "./copilot-installation.js";
 import { verifyCursorInstallation } from "./cursor-installation.js";
 import { assertCursorWorkspacePolicy } from "./cursor-launch-policy.js";
 import { resolveQualifiedAcpxProfile, type QualifiedAcpxAgent, type QualifiedAcpxProfile } from "./qualified-profiles.js";
 import { verifyPiInstallation } from "./pi-installation.js";
-import { assertCopilotCredentials, classifyCopilotFailure } from "./copilot-profile.js";
-import { verifyCopilotInstallation } from "./copilot-installation.js";
 import { verifyQualifiedAcpxInstallation, type VerifiedAcpxInstallation } from "./installation-integrity.js";
 
 /** Closed build-owned registry. Provider branches add their pinned installations here. */
diff --git a/packages/paperclip-runner/src/drivers/acpx/provider-assets-root.test.ts b/packages/paperclip-runner/src/drivers/acpx/provider-assets-root.test.ts
index a083a412646..b08d79b55d0 100644
--- a/packages/paperclip-runner/src/drivers/acpx/provider-assets-root.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/provider-assets-root.test.ts
@@ -31,6 +31,18 @@ it("resolves descriptor sidecars only through the runner-bound canonical package
   expect(() => resolveRunnerProviderAssetsRoot("file:///proc/self/fd/18", "pi")).toThrow("normalized absolute");
 });
 
+it("uses the public server owner for its vendored Copilot probe and selected sidecar", async () => {
+  const path = await serverFixture();
+  await writeFile(join(path, "package.json"), JSON.stringify({ name: "@paperclipai/server" }));
+  vi.stubEnv("PAPERCLIP_ACPX_PROVIDER_PACKAGE_ROOT", undefined);
+  vi.stubEnv("PAPERCLIP_ACPX_PROVIDER_PACKAGE_MANIFEST", undefined);
+  const moduleUrl = pathToFileURL(join(path, "dist/vendor/paperclip-runner/drivers/acpx/copilot-installation.js")).href;
+  expect(resolveRunnerProviderAssetsRoot(moduleUrl, "copilot")).toBe(join(path, "provider-assets/copilot"));
+  vi.stubEnv("PAPERCLIP_ACPX_PROVIDER_PACKAGE_ROOT", path);
+  vi.stubEnv("PAPERCLIP_ACPX_PROVIDER_PACKAGE_MANIFEST", join(path, "package.json"));
+  expect(resolveRunnerProviderAssetsRoot("file:///proc/self/fd/18", "copilot")).toBe(join(path, "provider-assets/copilot"));
+});
+
 it("resolves the public server bundle without repository paths or candidate overrides", async () => {
   const path = await root();
   const vendored = join(await realpath(path), "dist/vendor/paperclip-runner");
diff --git a/packages/paperclip-runner/src/drivers/acpx/provider-assets-root.ts b/packages/paperclip-runner/src/drivers/acpx/provider-assets-root.ts
index 2eed816169e..5f4929963b8 100644
--- a/packages/paperclip-runner/src/drivers/acpx/provider-assets-root.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/provider-assets-root.ts
@@ -44,7 +44,7 @@ export function resolveRunnerProviderAssetsRoot(moduleUrl: string, provider: Nat
         // runnerd derives this binding from the verified sidecar in the public
         // server package. Images may carry assets alongside that bundle; local
         // explicit setup uses the OS-account cache when package assets are absent.
-        packageRoot = join(dirname(canonicalManifest), "dist/vendor/paperclip-runner");
+        packageRoot = provider === "copilot" ? dirname(canonicalManifest) : join(dirname(canonicalManifest), "dist/vendor/paperclip-runner");
         if (realpathSync(packageRoot) !== packageRoot) throw new Error("Vendored runner directory is not contained by its server package");
       } else if (value?.name === RUNNER_PACKAGE_NAME) {
         packageRoot = dirname(canonicalManifest);
@@ -60,7 +60,7 @@ export function resolveRunnerProviderAssetsRoot(moduleUrl: string, provider: Nat
       const metadata = readPackageManifest(manifest, manifest);
       if (metadata.name !== SERVER_PACKAGE_NAME) throw new Error("Runner server vendor package identity is invalid");
       assertServerVendorLayout(packageRoot);
-      packageRoot = join(packageRoot, "dist/vendor/paperclip-runner");
+      if (provider !== "copilot") packageRoot = join(packageRoot, "dist/vendor/paperclip-runner");
     } else if (new RegExp(`/(?:src|dist)/drivers/acpx/${provider}-installation\\.(?:ts|js)$`).test(url.pathname)) packageRoot = fileURLToPath(new URL("../../../", url));
     else if (/\/dist\/cli\/acpx-runtime-sidecar\.(?:cjs|js)$/.test(url.pathname)) packageRoot = fileURLToPath(new URL("../../", url));
     else if (new RegExp(`/dist/vendor/paperclip-runner/drivers/acpx/${provider}-installation\\.(?:js)$`).test(url.pathname)) packageRoot = fileURLToPath(new URL("../../", url));
diff --git a/packages/paperclip-runner/src/drivers/acpx/qualified-profiles.ts b/packages/paperclip-runner/src/drivers/acpx/qualified-profiles.ts
index 9702f120b80..1a3012ff463 100644
--- a/packages/paperclip-runner/src/drivers/acpx/qualified-profiles.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/qualified-profiles.ts
@@ -43,6 +43,7 @@ export function resolveQualifiedAcpxProfile(
 ): QualifiedAcpxProfile {
   const profile = QUALIFIED_ACPX_PROFILES[agent];
   if (!requestedModel.trim()) throw new Error("ACPX model must not be empty");
+  if (agent === "copilot" && ["auto", "default"].includes(requestedModel.trim().toLowerCase())) throw new Error("Copilot requires an explicit model ID");
   return { ...structuredClone(profile), qualificationModel: requestedModel, reportedModelId: requestedModel };
 }
 
diff --git a/packages/paperclip-runner/src/drivers/acpx/runtime-host.test.ts b/packages/paperclip-runner/src/drivers/acpx/runtime-host.test.ts
index 2459dab2763..41ec9bde429 100644
--- a/packages/paperclip-runner/src/drivers/acpx/runtime-host.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/runtime-host.test.ts
@@ -1286,7 +1286,7 @@ describe("ACPX runtime host", () => {
     ).rejects.toThrow("initialization and cleanup failed");
     expect(runtime.close).toHaveBeenCalledOnce();
     expect(credential.close).not.toHaveBeenCalled();
-    expect(fixture.commandClose).toHaveBeenCalledOnce();
+    expect(fixture.commandClose).not.toHaveBeenCalled();
     expect(retainedAdmissionCleanup).not.toBeNull();
     let cleanupSettled = false;
     void retainedAdmissionCleanup!.finally(() => {
@@ -1299,6 +1299,7 @@ describe("ACPX runtime host", () => {
     await retainedAdmissionCleanup;
     expect(cleanupSettled).toBe(true);
     expect(credential.close).toHaveBeenCalledOnce();
+    expect(fixture.commandClose).toHaveBeenCalledOnce();
   });
 
   it("retains credential ownership when runtime shutdown fails until retry succeeds", async () => {
@@ -1376,7 +1377,7 @@ describe("ACPX runtime host", () => {
 
     const first = host.close({ reason: "runtime close pending" });
     await waitForAcpxOperation(() => expect(runtime.close).toHaveBeenCalledOnce());
-    await waitForAcpxOperation(() => expect(fixture.commandClose).toHaveBeenCalledOnce());
+    expect(fixture.commandClose).not.toHaveBeenCalled();
     const second = host.close({ reason: "same exact close" });
     await expect(readFile(authPath, "utf8")).resolves.toBe("{}");
     await expect(
@@ -1394,6 +1395,7 @@ describe("ACPX runtime host", () => {
       undefined,
       undefined,
     ]);
+    expect(fixture.commandClose).toHaveBeenCalledOnce();
     await expect(readFile(authPath)).rejects.toMatchObject({ code: "ENOENT" });
     const contender = await waitForAcpxOperation(() =>
       stageManagedCodexCredential({
@@ -1406,9 +1408,10 @@ describe("ACPX runtime host", () => {
     await contender.close();
   }, ACPX_LONG_WAIT_TEST_TIMEOUT_MS);
 
-  it("retains the exact pending cleanup while independent resources close", async () => {
+  it("retains the exact pending cleanup and command snapshot until runtime retirement", async () => {
     const fixture = await hostFixture();
-    const firstClose = new Promise<void>(() => undefined);
+    let resolveRuntimeClose!: () => void;
+    const firstClose = new Promise<void>(resolve => { resolveRuntimeClose = resolve; });
     const runtime = runtimePort({
       onClose: vi
         .fn()
@@ -1436,6 +1439,9 @@ describe("ACPX runtime host", () => {
     await Promise.resolve();
     expect(settled).toBe(false);
     expect(runtime.close).toHaveBeenCalledOnce();
+    expect(fixture.commandClose).not.toHaveBeenCalled();
+    resolveRuntimeClose();
+    await Promise.all([first, second]);
     expect(fixture.commandClose).toHaveBeenCalledOnce();
   }, ACPX_LONG_WAIT_TEST_TIMEOUT_MS);
 
diff --git a/packages/paperclip-runner/src/drivers/acpx/runtime-host.ts b/packages/paperclip-runner/src/drivers/acpx/runtime-host.ts
index 8be42da690f..0f441eb29b8 100644
--- a/packages/paperclip-runner/src/drivers/acpx/runtime-host.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/runtime-host.ts
@@ -1239,11 +1239,9 @@ async function cleanupRuntimeResources(
       return error;
     }
   };
-  // The command lease owns only the already-consumed verified launch
-  // snapshot, so it can be released as shutdown starts. The credential is
-  // different: a provider whose exact runtime close is pending or failed may
-  // still read or rewrite its home. Retain both the staged bytes and the
-  // exclusive home lease until that exact close succeeds.
+  // The runtime must retire before its command snapshot can be removed.
+  // Keep both the snapshot and credential while the provider is still alive;
+  // failed cleanup remains owned and can be retried after process retirement.
   const runtimeOutcome = runtime
     ? settle(() => runtime.close({ reason }))
     : Promise.resolve(null);
@@ -1253,9 +1251,10 @@ async function cleanupRuntimeResources(
     await runtimeOutcome;
     return toolBridge === null ? null : await settle(() => toolBridge.close());
   })();
-  const commandOutcome = command
-    ? settle(() => command.close())
-    : Promise.resolve(null);
+  const commandOutcome = (async (): Promise<unknown | null> => {
+    await runtimeOutcome;
+    return command === null ? null : await settle(() => command.close());
+  })();
   const credentialOutcome = (async (): Promise<unknown | null> => {
     const runtimeError = await runtimeOutcome;
     if (runtimeError !== null || credential === null) return null;
diff --git a/packages/paperclip-runner/src/drivers/acpx/runtime-sandbox.ts b/packages/paperclip-runner/src/drivers/acpx/runtime-sandbox.ts
index 3e0e52d250d..3fd9b1ba8eb 100644
--- a/packages/paperclip-runner/src/drivers/acpx/runtime-sandbox.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/runtime-sandbox.ts
@@ -1,6 +1,6 @@
 import { piProviderConfiguration } from "./pi-provider-config.js";
 import { configuredEnvironmentKeys } from "../../configured-environment.js";
-import { COPILOT_SYSTEM_INSTRUCTIONS_FILE } from "./copilot-profile.js";
+import { COPILOT_SYSTEM_INSTRUCTIONS_FILE, COPILOT_TASK_ORIENTATION_INSTRUCTIONS } from "./copilot-profile.js";
 import { randomBytes } from "node:crypto";
 import {
   constants,
@@ -646,13 +646,15 @@ export async function refreshCopilotSystemInstructions(
   sandbox: Pick<AcpxRuntimeSandbox, "agentHomeDirectory">,
   instructions: string,
 ): Promise<void> {
-  if (instructions.includes("\0") || Buffer.byteLength(instructions) > 32 * 1024) {
+  const current = `${instructions}\n\n# Paperclip task orientation\n${COPILOT_TASK_ORIENTATION_INSTRUCTIONS}\n`;
+  if (current.includes("\0") || Buffer.byteLength(current) > 32 * 1024) {
     throw new Error("Provider runtime instructions exceed their bounded size");
   }
-  // Native Copilot reloads this file on session/load. Empty text clears old text.
+  // Native Copilot reloads this file on session/load. Empty caller text clears
+  // old caller instructions while retaining the current task-orientation rule.
   await writePrivateFile(
     join(sandbox.agentHomeDirectory, COPILOT_SYSTEM_INSTRUCTIONS_FILE),
-    `${instructions}\n`,
+    current,
   );
 }
 
diff --git a/packages/paperclip-runner/src/drivers/acpx/single-read-evidence.test.ts b/packages/paperclip-runner/src/drivers/acpx/single-read-evidence.test.ts
index 8bd93e1c3cf..109889dd736 100644
--- a/packages/paperclip-runner/src/drivers/acpx/single-read-evidence.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/single-read-evidence.test.ts
@@ -65,7 +65,7 @@ for (const [provider, create] of [["cursor", createCursorToolEvidence], ["copilo
       s.projector.tool({ type: "tool_call", tag: "tool_call_update", toolCallId: "other", kind: "read", status: "completed", rawInput: { path } });
       expect(s.rows).toHaveLength(1); expect(s.rows[0].readTargetSha256).toBeUndefined();
     });
-    it("publishes the pending origin after its delayed complete input, retaining exact proof on every notice", () => {
+    it.runIf(provider === "cursor")("publishes the pending origin after its delayed complete input, retaining exact proof on every notice", () => {
       const s = setup();
       s.projector.tool({ ...origin, rawInput: {}, locations: undefined });
       expect(s.rows).toEqual([]);
diff --git a/packages/paperclip-runner/src/drivers/codex/app-server-transport.ts b/packages/paperclip-runner/src/drivers/codex/app-server-transport.ts
index 3e08de1f22f..cee7bb80b2e 100644
--- a/packages/paperclip-runner/src/drivers/codex/app-server-transport.ts
+++ b/packages/paperclip-runner/src/drivers/codex/app-server-transport.ts
@@ -1,5 +1,6 @@
 import { configuredEnvironment } from "../../configured-environment.js";
 import type { NativeTurnControlCapabilities } from "../../contracts/types.js";
+import type { NativeRunRuntimeGrant } from "../../contracts/runtime-context.js";
 import { spawn, type ChildProcessWithoutNullStreams } from "node:child_process";
 import type { HarnessRuntimeRequestResolution } from "../../contracts/harness-driver.js";
 import { githubCredentialEnvironment } from "../../github-credential-environment.js";
@@ -67,6 +68,7 @@ export interface CodexAppServerTransport {
     runId: string;
     turnId: string;
     itemId: string;
+    currentRunGrant?: NativeRunRuntimeGrant;
   }): Promise<void>;
   /** Records post-rehydration driver mapping without affecting run authority. */
   recordTraceInterpretation?(input: CodexTraceInterpretation): void;
diff --git a/packages/paperclip-runner/src/drivers/codex/codex-app-server-driver.lifecycle.test.ts b/packages/paperclip-runner/src/drivers/codex/codex-app-server-driver.lifecycle.test.ts
index c5ade4c19c2..7810e82bb4a 100644
--- a/packages/paperclip-runner/src/drivers/codex/codex-app-server-driver.lifecycle.test.ts
+++ b/packages/paperclip-runner/src/drivers/codex/codex-app-server-driver.lifecycle.test.ts
@@ -128,9 +128,10 @@ describe("Codex app-server Codex driver", () => {
       message: { role: "user", text: "first turn" },
     });
     await expect(
-      session.attachRun?.({ runId: "run-warm-second" }),
+      session.attachRun?.({ runId: "run-warm-second", currentRunGrant: { runtimeContext: null, instructions: "Current registered instructions." } }),
     ).resolves.toBeUndefined();
     expect(transport.attachments).toHaveLength(1);
+    expect(transport.attachments[0]).toMatchObject({ currentRunGrant: { runtimeContext: null, instructions: "Current registered instructions." } });
     expect((await session.snapshot()).activeTurnId).toBeNull();
 
     await expect(
diff --git a/packages/paperclip-runner/src/drivers/codex/codex-app-server-driver.test.ts b/packages/paperclip-runner/src/drivers/codex/codex-app-server-driver.test.ts
index b5a8ee9ec12..a0f457e1115 100644
--- a/packages/paperclip-runner/src/drivers/codex/codex-app-server-driver.test.ts
+++ b/packages/paperclip-runner/src/drivers/codex/codex-app-server-driver.test.ts
@@ -1,4 +1,5 @@
 import { describe, expect, it, vi } from "vitest";
+import { runnerdRuntimeRequestExpiryNotification } from "../../live/runnerd-codex-transport.js";
 import { resolve as resolvePath } from "node:path";
 import { fileURLToPath } from "node:url";
 import { SemanticToolOutcomeUnknownError } from "../../contracts/native-session-backend.js";
@@ -2407,6 +2408,67 @@ describe("Codex app-server Codex driver", () => {
     for (const event of terminal) expect(validatePrpEvent(event).ok).toBe(true);
   });
 
+  it("preserves runnerd permission expiry before a failed provider terminal and refuses late approval", async () => {
+    const transport = new FakeCodexTransport();
+    const resolve = vi.fn(async () => {});
+    transport.runtimeRequestResolver = resolve;
+    const session = await makeDriver([transport]).openSession({
+      runId: "run-native-expiry", normalizedSessionId: "session-native-expiry", workingDirectory: TEST_WORKING_DIRECTORY,
+    });
+    const events: PrpEvent[] = [];
+    const consume = (async () => { for await (const event of session.events()) events.push(event); })();
+    const { turnId } = await session.startTurn({ message: { role: "user", text: "Leave the native edit unanswered." } });
+    const pending = transport.invoke({ id: "native-edit-permission", method: "session/request_permission", params: {
+      threadId: "thread-1", turnId, itemId: "native-edit", reason: "Write file",
+      choices: [{ key: "accept", label: "Allow once" }, { key: "decline", label: "Deny" }],
+      origin: { adapter: "acpx-runtime-sidecar", provider: "acpx", method: "session/request_permission" },
+    } });
+    await vi.waitFor(() => expect(session.pendingRuntimeRequests?.()).toHaveLength(1));
+    // Exact Rust ACPX projector settlement shape; the facade uses its own
+    // provider-turn identity just as it does when creating the callback.
+    const payload = { provider: "acpx", requestId: "native-edit-permission", requestKind: "permission_approval",
+      requestType: "permission", turnId: "durable-controller-turn", itemId: "durable-item",
+      reason: "provider_process_lost", replayAllowed: false, adapter: "acpx-runtime-sidecar" };
+    for (const kind of ["runtime_request.resolved", "runtime_request.cancelled", "runtime_request.created"])
+      expect(runnerdRuntimeRequestExpiryNotification(kind, payload, "thread-1", turnId)).toBeNull();
+    const expiry = runnerdRuntimeRequestExpiryNotification("runtime_request.expired", payload, "thread-1", turnId)!;
+    transport.push(expiry.method, expiry.params);
+    transport.push(expiry.method, expiry.params); // Same durable retirement cannot settle twice.
+    await pending;
+    expect(session.pendingRuntimeRequests?.()).toEqual([]);
+    await expect(session.resolveRuntimeRequest?.({ requestId: "native-edit-permission", turnId, resolution: { action: "accept" } }))
+      .rejects.toThrow();
+    expect(resolve).not.toHaveBeenCalled();
+    transport.push("turn/completed", { threadId: "thread-1", turn: { id: turnId, status: "failed", error: { code: "ACPX_PROVIDER_PROCESS_LOST", message: "Provider died" } } });
+    await vi.waitFor(() => expect(events.some(event => event.eventType === "turn.failed")).toBe(true));
+    await session.close(); await consume;
+    const settlements = events.filter(event => ["runtime_request.expired", "runtime_request.cancelled", "runtime_request.resolved"].includes(event.eventType));
+    expect(settlements).toHaveLength(1);
+    expect(settlements[0]).toMatchObject({ eventType: "runtime_request.expired", turnId, itemId: "native-edit", payload: { ...payload, turnId, itemId: "native-edit" } });
+    expect(events.indexOf(settlements[0]!)).toBeLessThan(events.findIndex(event => event.eventType === "turn.failed"));
+    expect(validatePrpEvent(settlements[0]!)).toMatchObject({ ok: true });
+  });
+
+  it.each(["turn", "kind", "type", "replay"])("refuses canonical permission expiry with a changed %s binding", async kind => {
+    const transport = new FakeCodexTransport();
+    const session = await makeDriver([transport]).openSession({ runId: "expiry-bound", normalizedSessionId: "expiry-bound", workingDirectory: TEST_WORKING_DIRECTORY });
+    const events: PrpEvent[] = [];
+    const consume = (async () => { for await (const event of session.events()) events.push(event); })();
+    const { turnId } = await session.startTurn({ message: { role: "user", text: "Wait for permission" } });
+    const pending = transport.invoke({ id: "bound-permission", method: "session/request_permission", params: {
+      threadId: "thread-1", turnId, itemId: "edit", reason: "Edit", choices: [{ key: "accept", label: "Allow once" }, { key: "decline", label: "Deny" }],
+      origin: { adapter: "acpx-runtime-sidecar", provider: "acpx", method: "session/request_permission" },
+    } });
+    await vi.waitFor(() => expect(session.pendingRuntimeRequests?.()).toHaveLength(1));
+    const payload = { requestId: "bound-permission", requestKind: kind === "kind" ? "runtime" : "permission_approval",
+      requestType: kind === "type" ? "input" : "permission", replayAllowed: kind === "replay", reason: "provider_process_lost" };
+    const notification = runnerdRuntimeRequestExpiryNotification("runtime_request.expired", payload, "thread-1", kind === "turn" ? "foreign-turn" : turnId)!;
+    transport.push(notification.method, notification.params);
+    await pending; await consume; await session.close();
+    expect(events.some(e => e.eventType === "runtime_request.expired")).toBe(false);
+    expect(events.some(e => e.eventType === "session.failed" && e.payload.code === "turn_binding_mismatch")).toBe(true);
+  });
+
   it("expires a canonical input with its full question set when the provider transport is lost", async () => {
     const transport = new FakeCodexTransport();
     const session = await makeDriver([transport]).openSession({
diff --git a/packages/paperclip-runner/src/drivers/codex/codex-harness-session.ts b/packages/paperclip-runner/src/drivers/codex/codex-harness-session.ts
index 4efc9eec23d..955040bf7be 100644
--- a/packages/paperclip-runner/src/drivers/codex/codex-harness-session.ts
+++ b/packages/paperclip-runner/src/drivers/codex/codex-harness-session.ts
@@ -23,6 +23,7 @@ import {
   parseHarnessRuntimeRequestResolution,
 } from "../../contracts/harness-driver.js";
 import type { NativeUserMessage } from "../../contracts/types.js";
+import type { NativeRunRuntimeGrant } from "../../contracts/runtime-context.js";
 import {
   CODEX_RESULT_OUTPUT_SCHEMA,
   type CodexModelContextSnapshot,
@@ -97,7 +98,7 @@ export class CodexHarnessSession
     };
   }
 
-  async attachRun(input: { runId: string }): Promise<void> {
+  async attachRun(input: { runId: string; currentRunGrant?: NativeRunRuntimeGrant }): Promise<void> {
     this.assertProtocolIntegrity();
     const transportOwnsQuiescence = this.transport.attachRun !== undefined;
     if (
@@ -112,6 +113,7 @@ export class CodexHarnessSession
       runId: input.runId,
       turnId: `turn_attachment_${randomUUID().replaceAll("-", "")}`,
       itemId: `item_attachment_${randomUUID().replaceAll("-", "")}`,
+      ...(input.currentRunGrant ? { currentRunGrant: structuredClone(input.currentRunGrant) } : {}),
     });
     this.assertProtocolIntegrity();
     if (transportOwnsQuiescence) {
diff --git a/packages/paperclip-runner/src/drivers/codex/codex-notification-identity.test.ts b/packages/paperclip-runner/src/drivers/codex/codex-notification-identity.test.ts
index e1fbc00415f..cdfc4bc15cf 100644
--- a/packages/paperclip-runner/src/drivers/codex/codex-notification-identity.test.ts
+++ b/packages/paperclip-runner/src/drivers/codex/codex-notification-identity.test.ts
@@ -16,6 +16,10 @@ describe("provider notification authority", () => {
     ["paperclip/canonicalProviderEvent", { threadId: null, eventType: "provider.notice.recorded" }, "root"],
     ["paperclip/canonicalProviderEvent", { threadId: null, eventType: "tool.execution.started" }, "invalid_authority"],
     ["item/started", { threadId: "root", turnId: "active" }, "root"],
+    ["paperclip/runtimeRequestExpired", { threadId: "root", turnId: "active" }, "root"],
+    ["paperclip/runtimeRequestExpired", { threadId: "child", turnId: "active" }, "invalid_authority"],
+    ["paperclip/runtimeRequestExpired", { threadId: null, turnId: "active" }, "invalid_authority"],
+    ["paperclip/runtimeRequestExpired", { threadId: "root", turnId: "old" }, "stale_turn"],
     ["turn/completed", { threadId: "root", turnId: "old" }, "stale_turn"],
     [
       "turn/completed",
diff --git a/packages/paperclip-runner/src/drivers/codex/codex-session-notifications.ts b/packages/paperclip-runner/src/drivers/codex/codex-session-notifications.ts
index ba2581bbcf3..ad678244262 100644
--- a/packages/paperclip-runner/src/drivers/codex/codex-session-notifications.ts
+++ b/packages/paperclip-runner/src/drivers/codex/codex-session-notifications.ts
@@ -150,6 +150,26 @@ async function mapNotificationBody(state: CodexSessionState, notification: Codex
     const threadId = text(params.threadId);
     const turnId = text(params.turnId, text(turn.id));
     const itemId = text(item.id, text(params.itemId));
+    if (notification.method === "paperclip/runtimeRequestExpired") {
+      const payload = record(params.payload);
+      const requestId = text(payload.requestId);
+      const pending = state.pendingRuntimeRequestMap.get(requestId);
+      if (pending === undefined) return;
+      if (pending.request.turnId !== turnId || payload.requestKind !== pending.request.requestKind
+        || payload.requestType !== (pending.request.input === undefined ? "permission" : "input")
+        || payload.replayAllowed !== false || typeof payload.reason !== "string" || !payload.reason) {
+        state.failProtocol("turn_binding_mismatch", "Canonical request expiry changed its callback binding.");
+        return;
+      }
+      state.pendingRuntimeRequestMap.delete(requestId);
+      // Preserve durable expiry evidence with the same facade identity used
+      // when creating this callback. Terminal handling must not cancel it again.
+      state.emit("runtime_request.expired", { ...payload,
+        turnId: pending.request.turnId, itemId: pending.request.itemId,
+      }, { turnId: pending.request.turnId, itemId: pending.request.itemId });
+      pending.settle(safeRequestResponse(pending.request.method, "cancel"));
+      return;
+    }
     if (notification.method === "paperclip/canonicalProviderEvent") {
       if (!isCanonicalProviderEventType(params.eventType)) {
         state.failProtocol("provider_event_type_invalid", "Unknown canonical provider event type.");
diff --git a/packages/paperclip-runner/src/drivers/codex/codex-thread-normalization.ts b/packages/paperclip-runner/src/drivers/codex/codex-thread-normalization.ts
index 6513b2446ae..d3b218bac4e 100644
--- a/packages/paperclip-runner/src/drivers/codex/codex-thread-normalization.ts
+++ b/packages/paperclip-runner/src/drivers/codex/codex-thread-normalization.ts
@@ -142,6 +142,7 @@ export function isSupportedCodexNotificationMethod(method: string): boolean {
     method === "model/safetyBuffering/updated" ||
     method.startsWith("item/") ||
     method === "paperclip/canonicalProviderEvent" ||
+    method === "paperclip/runtimeRequestExpired" ||
     method === "paperclip/workspaceChange/updated" ||
     method === "paperclip/runResult" ||
     method === "turn/diff/updated" ||
diff --git a/packages/paperclip-runner/src/drivers/copilot-metadata-probe.test.ts b/packages/paperclip-runner/src/drivers/copilot-metadata-probe.test.ts
new file mode 100644
index 00000000000..0b7a3f69262
--- /dev/null
+++ b/packages/paperclip-runner/src/drivers/copilot-metadata-probe.test.ts
@@ -0,0 +1,78 @@
+import { EventEmitter } from "node:events";
+import { PassThrough, Writable } from "node:stream";
+import { access } from "node:fs/promises";
+import type { ChildProcessWithoutNullStreams } from "node:child_process";
+import { describe, expect, it, vi, beforeEach } from "vitest";
+import { QUALIFIED_ACPX_PROFILES } from "./acpx/qualified-profiles.js";
+const mocks = vi.hoisted(() => ({ verify: vi.fn() }));
+vi.mock("./acpx/copilot-installation.js", () => ({ verifyCopilotInstallation: mocks.verify }));
+import { createMetadataRpc, probeCopilotMetadata, validateCopilotMetadata } from "./copilot-metadata-probe.js";
+function fakeChild(reply: (message: any) => unknown) {
+  const child = new EventEmitter() as ChildProcessWithoutNullStreams;
+  child.stdout = new PassThrough(); child.stderr = new PassThrough();
+  child.kill = vi.fn(() => { child.emit("close", 0); return true; });
+  child.stdin = new Writable({ write(chunk, _encoding, done) {
+    const message = JSON.parse(chunk.toString());
+    const response = reply(message);
+    if (response !== undefined) queueMicrotask(() => child.stdout.emit("data", Buffer.from(`${JSON.stringify({ jsonrpc: "2.0", id: message.id, ...response as object })}\n`)));
+    done();
+  }, final(done) { queueMicrotask(() => child.emit("close", 0)); done(); } });
+  return child;
+}
+const verified = { status: "verified", version: "1.0.88", profileDigest: QUALIFIED_ACPX_PROFILES.copilot.commandDigest, models: [{ id: "gpt-5.6-luna", label: "GPT" }], promptSent: false };
+beforeEach(() => vi.clearAllMocks());
+describe("Copilot metadata boundary", () => {
+  it("sends metadata only, binds an explicit token, and removes its private home", async () => {
+    const methods: string[] = []; let environment: NodeJS.ProcessEnv = {}, cwd = "";
+    const close = vi.fn(async () => {});
+    const child = fakeChild(message => {
+      methods.push(message.method);
+      if (message.method === "initialize") return { result: { agentInfo: { version: "1.0.88" } } };
+      if (message.method === "session/new") return { result: { sessionId: "session", models: { availableModels: [{ modelId: "gpt-5.6-luna", name: "GPT" }] } } };
+      if (message.method === "session/set_config_option") return { result: { configOptions: [{ id: "model", currentValue: "gpt-5.6-luna" }] } };
+      return { result: {} };
+    });
+    mocks.verify.mockResolvedValue({ commandDigest: verified.profileDigest, openCommand: async () => ({ close, spawn: (_args: unknown, options: any) => { environment = options.env; cwd = options.cwd; return child; } }) });
+    expect(await probeCopilotMetadata("github_pat_private_test", "gpt-5.6-luna")).toEqual(verified);
+    expect(methods).toEqual(["initialize", "session/new", "session/set_model", "session/set_config_option"]);
+    expect(environment.COPILOT_GITHUB_TOKEN).toBe("github_pat_private_test");
+    for (const key of ["GH_TOKEN", "GITHUB_TOKEN", "NODE_OPTIONS", "SSH_AUTH_SOCK"]) expect(environment).not.toHaveProperty(key);
+    expect(environment.HOME).toContain(cwd); expect(close).toHaveBeenCalledOnce();
+    await expect(access(cwd)).rejects.toThrow();
+  });
+  it("rejects an unavailable model without sending a prompt or selecting another model", async () => {
+    const methods: string[] = [];
+    const child = fakeChild(message => { methods.push(message.method); return { result: message.method === "initialize" ? { agentInfo: { version: "1.0.88" } } : { sessionId: "session", models: { availableModels: [{ modelId: "other" }] } } }; });
+    const close = vi.fn(async () => {});
+    mocks.verify.mockResolvedValue({ commandDigest: verified.profileDigest, openCommand: async () => ({ close, spawn: () => child }) });
+    expect(await probeCopilotMetadata("token", "missing")).toMatchObject({ status: "failed", code: "COPILOT_MODEL_UNAVAILABLE", promptSent: false });
+    expect(methods).toEqual(["initialize", "session/new"]); expect(close).toHaveBeenCalledOnce();
+  });
+  it("preserves model labels split inside every UTF-8 character across transport chunks", async () => {
+    const child = fakeChild(() => undefined), rpc = createMetadataRpc(child);
+    const result = { models: { availableModels: [{ modelId: "gpt-5.6-luna", name: "東京 🚀 café" }] } };
+    const response = rpc.request("session/new", {});
+    const wire = Buffer.from(`${JSON.stringify({ jsonrpc: "2.0", id: 0, result })}\n`);
+    for (const byte of wire) child.stdout.emit("data", Buffer.from([byte]));
+    await expect(response).resolves.toEqual(result);
+  });
+  it("cannot dispatch semantic or prompt methods", () => {
+    const child = fakeChild(() => undefined), rpc = createMetadataRpc(child);
+    expect(() => rpc.request("session/prompt", {})).toThrow("cannot send");
+    expect(() => rpc.request("tools/call", {})).toThrow("cannot send");
+  });
+  it("rejects outstanding calls when the provider dies", async () => {
+    const child = fakeChild(() => undefined), rpc = createMetadataRpc(child);
+    const promise = rpc.request("initialize", {}); child.emit("close", 1);
+    await expect(promise).rejects.toThrow("provider exited");
+  });
+  it("accepts only current profile metadata and sanitized failures", () => {
+    expect(validateCopilotMetadata(verified)).toEqual(verified);
+    for (const mutation of [{ promptSent: true }, { profileDigest: "stale" }, { models: [] }, { models: [{ id: "bad id", label: "x" }] }, { models: [{ id: "safe", label: "github_pat_secret" }] }, { models: [...verified.models, ...verified.models] }]) {
+      expect(validateCopilotMetadata({ ...verified, ...mutation })).toMatchObject({ status: "failed", code: "COPILOT_REQUEST_FAILED" });
+    }
+    const failure = validateCopilotMetadata({ status: "failed", code: "COPILOT_AUTH_REQUIRED", message: "github_pat_secret", promptSent: false });
+    expect(failure).toMatchObject({ code: "COPILOT_AUTH_REQUIRED" }); expect(JSON.stringify(failure)).not.toContain("secret");
+    expect(validateCopilotMetadata({ status: "failed", code: "untrusted", promptSent: false })).toMatchObject({ code: "COPILOT_REQUEST_FAILED" });
+  });
+});
diff --git a/packages/paperclip-runner/src/drivers/copilot-metadata-probe.ts b/packages/paperclip-runner/src/drivers/copilot-metadata-probe.ts
new file mode 100644
index 00000000000..f5c5b4289e7
--- /dev/null
+++ b/packages/paperclip-runner/src/drivers/copilot-metadata-probe.ts
@@ -0,0 +1,162 @@
+import { StringDecoder } from "node:string_decoder";
+import { mkdtemp, mkdir, writeFile, rm } from "node:fs/promises";
+import { join } from "node:path";
+import { tmpdir } from "node:os";
+import type { ChildProcessWithoutNullStreams } from "node:child_process";
+import { verifyCopilotInstallation } from "./acpx/copilot-installation.js";
+import { QUALIFIED_ACPX_PROFILES, resolveQualifiedAcpxProfile } from "./acpx/qualified-profiles.js";
+import { classifyCopilotFailure, copilotConfiguration, copilotSandboxEnvironment } from "./acpx/copilot-profile.js";
+import { COPILOT_ACP_CLIENT_CAPABILITIES } from "./acpx/copilot-events.js";
+
+type RecordValue = Record<string, unknown>;
+const record = (value: unknown): RecordValue => value !== null && typeof value === "object" && !Array.isArray(value) ? value as RecordValue : {};
+const METHODS = new Set(["initialize", "session/new", "session/set_model", "session/set_config_option", "session/close"]);
+export type CopilotMetadataResult =
+  | { status: "verified"; version: "1.0.88"; profileDigest: string; models: Array<{ id: string; label: string }>; promptSent: false }
+  | { status: "failed"; code: string; message: string; promptSent: false };
+
+/** A metadata-only client: no prompt, tool server, workspace, or ambient login. */
+export async function probeCopilotMetadata(token: string, model?: string): Promise<CopilotMetadataResult> {
+  if (model && ["auto", "default"].includes(model.trim().toLowerCase())) return { status: "failed", code: "COPILOT_MODEL_UNAVAILABLE", message: "Select an explicit Copilot model.", promptSent: false };
+  if (!token.trim() || token.includes("\0")) return { status: "failed", code: "COPILOT_AUTH_REQUIRED", message: "Enter a valid Copilot personal access token.", promptSent: false };
+  let installation;
+  try { installation = await verifyCopilotInstallation(resolveQualifiedAcpxProfile("copilot", model ?? "metadata-discovery")); }
+  catch { return { status: "failed", code: "COPILOT_INSTALLATION_INVALID", message: "The selected environment does not have the verified Copilot runtime installed.", promptSent: false }; }
+  let root: string | undefined;
+  let lease: Awaited<ReturnType<typeof installation.openCommand>> | undefined;
+  let child: ChildProcessWithoutNullStreams | undefined;
+  let closed: Promise<void> | undefined;
+  let deadline: ReturnType<typeof setTimeout> | undefined;
+  let phase = "installation";
+  try {
+    lease = await installation.openCommand();
+    root = await mkdtemp(join(tmpdir(), "paperclip-copilot-metadata-"));
+    const directories = { homeDirectory: join(root, "home"), configDirectory: join(root, "config"), dataDirectory: join(root, "data"), cacheDirectory: join(root, "cache"), agentHomeDirectory: join(root, "copilot") };
+    for (const directory of Object.values(directories)) await mkdir(directory, { mode: 0o700 });
+    await writeFile(join(directories.agentHomeDirectory, "config.json"), JSON.stringify(copilotConfiguration()), { mode: 0o600 });
+    child = lease.spawn([], { cwd: root, env: { PATH: "/usr/bin:/bin", ...copilotSandboxEnvironment(directories), COPILOT_GITHUB_TOKEN: token }, stdio: "pipe" }) as ChildProcessWithoutNullStreams;
+    closed = new Promise(resolve => child!.once("close", () => resolve()));
+    const rpc = createMetadataRpc(child);
+    const work = async (): Promise<CopilotMetadataResult> => {
+      phase = "initialize";
+      const initialized = record(await rpc.request("initialize", { protocolVersion: 1, clientInfo: { name: "paperclip-copilot-metadata", version: "1" }, clientCapabilities: COPILOT_ACP_CLIENT_CAPABILITIES }));
+      if (record(initialized.agentInfo).version !== "1.0.88") throw Object.assign(new Error("Verified Copilot installation changed"), { code: "COPILOT_INSTALLATION_INVALID" });
+      phase = "session-new";
+      const opened = record(await rpc.request("session/new", { cwd: root, mcpServers: [] }));
+      const advertised = record(opened.models).availableModels;
+      const models = (Array.isArray(advertised) ? advertised : []).slice(0, 200).flatMap(value => {
+        const entry = record(value), id = entry.modelId;
+        return typeof id === "string" && !["auto", "default"].includes(id.toLowerCase()) && /^[a-zA-Z0-9][a-zA-Z0-9._:/-]{0,199}$/.test(id)
+          ? [{ id, label: typeof entry.name === "string" && !/[\x00-\x1f\x7f]|github_pat_|gh[pousr]_/.test(entry.name) ? entry.name.slice(0, 200) : id }] : [];
+      });
+      if (!models.length) throw new Error("Copilot model discovery unavailable");
+      if (model) {
+        if (!models.some(value => value.id === model)) throw Object.assign(new Error("Selected Copilot model unavailable"), { code: "COPILOT_MODEL_UNAVAILABLE" });
+        phase = "model-selection";
+        await rpc.request("session/set_model", { sessionId: opened.sessionId, modelId: model });
+        phase = "model-confirmation";
+        const configured = record(await rpc.request("session/set_config_option", { sessionId: opened.sessionId, configId: "model", value: model }));
+        if (!Array.isArray(configured.configOptions) || !configured.configOptions.some(option => record(option).id === "model" && record(option).currentValue === model)) {
+          throw Object.assign(new Error("Selected Copilot model unavailable"), { code: "COPILOT_MODEL_UNAVAILABLE" });
+        }
+      }
+      // EOF is the authoritative stdio shutdown; session/close is optional.
+      return { status: "verified", version: "1.0.88", profileDigest: installation.commandDigest, models, promptSent: false };
+    };
+    return await Promise.race([work(), new Promise<never>((_resolve, reject) => {
+      deadline = setTimeout(() => reject(new Error("Copilot metadata probe timed out")), 25_000);
+    })]);
+  } catch (error) {
+    const code = record(error).code;
+    if (code === "COPILOT_INSTALLATION_INVALID") return { status: "failed", code, message: "The selected environment has an incompatible Copilot installation.", promptSent: false };
+    if (code === "COPILOT_MODEL_UNAVAILABLE") return { status: "failed", code, message: "The selected Copilot model is unavailable for this account.", promptSent: false };
+    const failure = classifyCopilotFailure(error);
+    const cause = error instanceof Error && error.message === "Copilot metadata probe timed out" ? "deadline"
+      : error instanceof Error && error.message === "Copilot provider exited during metadata discovery" ? "provider-exit" : "request-rejected";
+    // Only closed diagnostic categories; never log provider errors, wire data,
+    // credentials, model catalogs, session IDs or private workspace paths.
+    console.warn("Copilot metadata verification failed", JSON.stringify({ phase, code: failure.code, cause }));
+    return { status: "failed", ...failure, promptSent: false };
+  } finally {
+    if (deadline) clearTimeout(deadline);
+    if (child && closed) {
+      child.stdin.end();
+      const term = setTimeout(() => child?.kill("SIGTERM"), 500);
+      const kill = setTimeout(() => child?.kill("SIGKILL"), 2_000);
+      await closed;
+      clearTimeout(term); clearTimeout(kill);
+    }
+    try { await lease?.close(); } finally { if (root) await rm(root, { recursive: true, force: true }); }
+  }
+}
+
+export function createMetadataRpc(child: ChildProcessWithoutNullStreams) {
+  const decoder = new StringDecoder("utf8");
+  const pending = new Map<number, { resolve(value: unknown): void; reject(error: Error): void }>();
+  let nextId = 0, bytes = 0, buffer = "", failure: Error | undefined;
+  const fail = (error: Error) => { failure ??= error; for (const call of pending.values()) call.reject(failure); pending.clear(); };
+  child.once("close", () => fail(new Error("Copilot provider exited during metadata discovery")));
+  child.once("error", () => fail(new Error("Copilot installation could not start")));
+  child.stdin.on("error", () => fail(new Error("Copilot metadata transport unavailable")));
+  child.stderr.on("data", () => {});
+  child.stdout.on("data", (chunk: Buffer) => {
+    bytes += chunk.length;
+    if (bytes > 2 * 1024 * 1024) { fail(new Error("Copilot metadata exceeded its bound")); child.kill("SIGTERM"); return; }
+    buffer += decoder.write(chunk);
+    while (buffer.includes("\n")) {
+      const end = buffer.indexOf("\n"), line = buffer.slice(0, end); buffer = buffer.slice(end + 1);
+      if (!line.trim()) continue;
+      let message: RecordValue;
+      try { message = record(JSON.parse(line)); } catch { fail(new Error("Invalid Copilot metadata response")); return; }
+      if (message.method) {
+        if (message.id !== undefined) child.stdin.write(`${JSON.stringify({ jsonrpc: "2.0", id: message.id, error: { code: -32601, message: "Metadata discovery does not support inbound methods" } })}\n`);
+        continue;
+      }
+      const call = pending.get(message.id as number);
+      if (!call) continue;
+      pending.delete(message.id as number);
+      if (message.error) {
+        const details = record(message.error);
+        call.reject(new Error(typeof details.message === "string" ? details.message.slice(0, 8192) : "Copilot metadata request failed"));
+      } else call.resolve(message.result);
+    }
+  });
+  return { request(method: string, params: RecordValue): Promise<unknown> {
+    if (!METHODS.has(method)) throw new Error("Metadata discovery cannot send this method");
+    if (failure) return Promise.reject(failure);
+    const id = nextId++;
+    return new Promise((resolve, reject) => {
+      pending.set(id, { resolve, reject });
+      child.stdin.write(`${JSON.stringify({ jsonrpc: "2.0", id, method, params })}\n`);
+    });
+  } };
+}
+
+const FAILURE_MESSAGES = {
+  COPILOT_AUTH_REQUIRED: "Enter a valid Copilot personal access token.",
+  COPILOT_ENTITLEMENT_DENIED: "Copilot access is denied by the account entitlement or organization policy.",
+  COPILOT_MODEL_UNAVAILABLE: "The selected Copilot model is unavailable for this account.",
+  COPILOT_INSTALLATION_INVALID: "Install the verified Copilot runtime in this environment.",
+  COPILOT_REQUEST_FAILED: "Copilot metadata verification failed.",
+} as const;
+/** Validate remote metadata and discard all provider-authored error text. */
+export function validateCopilotMetadata(value: unknown): CopilotMetadataResult {
+  const result = record(value);
+  const invalid = (): CopilotMetadataResult => ({ status: "failed", code: "COPILOT_REQUEST_FAILED", message: FAILURE_MESSAGES.COPILOT_REQUEST_FAILED, promptSent: false });
+  if (result.promptSent !== false) return invalid();
+  if (result.status === "failed") {
+    const code = typeof result.code === "string" && Object.hasOwn(FAILURE_MESSAGES, result.code) ? result.code as keyof typeof FAILURE_MESSAGES : "COPILOT_REQUEST_FAILED";
+    return { status: "failed", code, message: FAILURE_MESSAGES[code], promptSent: false };
+  }
+  if (result.status !== "verified" || result.version !== "1.0.88" || result.profileDigest !== QUALIFIED_ACPX_PROFILES.copilot.commandDigest
+    || !Array.isArray(result.models) || result.models.length === 0 || result.models.length > 200) return invalid();
+  const models: Array<{ id: string; label: string }> = [];
+  const ids = new Set<string>();
+  for (const value of result.models) {
+    const entry = record(value);
+    if (typeof entry.id !== "string" || !/^[A-Za-z0-9][A-Za-z0-9._:/-]{0,199}$/.test(entry.id) || ids.has(entry.id)
+      || typeof entry.label !== "string" || entry.label.length > 200 || /[\x00-\x1f\x7f]|github_pat_|gh[pousr]_/.test(entry.label)) return invalid();
+    ids.add(entry.id); models.push({ id: entry.id, label: entry.label });
+  }
+  return { status: "verified", version: "1.0.88", profileDigest: result.profileDigest, models, promptSent: false };
+}
diff --git a/packages/paperclip-runner/src/live/index.ts b/packages/paperclip-runner/src/live/index.ts
index cd3f85e2f4e..ab80904063e 100644
--- a/packages/paperclip-runner/src/live/index.ts
+++ b/packages/paperclip-runner/src/live/index.ts
@@ -7,6 +7,7 @@ export * from "./turn-stream.js";
 export * from "./linux-process-start.js";
 
 export { probeAcpxClaudeInstallation, probeAcpxGrokInstallation, probeAcpxPiInstallation } from "../drivers/acpx/installation-integrity.js";
+export { probeCopilotMetadata, validateCopilotMetadata, type CopilotMetadataResult } from "../drivers/copilot-metadata-probe.js";
 
 export { probeAcpxCursorInstallation } from "../drivers/acpx/profile-installation.js";
 
diff --git a/packages/paperclip-runner/src/live/runnerd-acpx-permission-ordering.test.ts b/packages/paperclip-runner/src/live/runnerd-acpx-permission-ordering.test.ts
index 3da30eae8f7..3e0c5314b78 100644
--- a/packages/paperclip-runner/src/live/runnerd-acpx-permission-ordering.test.ts
+++ b/packages/paperclip-runner/src/live/runnerd-acpx-permission-ordering.test.ts
@@ -158,6 +158,10 @@ it("does not dispatch an expired durable request when its consumer resumes", asy
     fixture.emitPermission();
     peer.current!.emit("runtime_request.expired", { requestId: "permission-7" });
     fixture.emitMarker();
+    expect((await fixture.iterator.next()).value).toMatchObject({
+      method: "paperclip/runtimeRequestExpired",
+      params: { payload: { requestId: "permission-7" } },
+    });
     expect((await fixture.iterator.next()).value?.method).toBe("item/agentMessage/delta");
     expect(handler).not.toHaveBeenCalled();
   } finally { await fixture.close(); }
diff --git a/packages/paperclip-runner/src/live/runnerd-codex-transport.test.ts b/packages/paperclip-runner/src/live/runnerd-codex-transport.test.ts
index 857109376d3..f3db235e71a 100644
--- a/packages/paperclip-runner/src/live/runnerd-codex-transport.test.ts
+++ b/packages/paperclip-runner/src/live/runnerd-codex-transport.test.ts
@@ -10,6 +10,7 @@ import {
   readFile,
   readdir,
   readlink,
+  realpath,
   rename,
   rm,
   stat,
@@ -19,6 +20,7 @@ import {
 import { createHash, randomUUID } from "node:crypto";
 import { execFileSync, spawn } from "node:child_process";
 import { readFileSync } from "node:fs";
+import { bindAcpxAgentFiles } from "../drivers/acpx/agent-files-binding.js";
 import { createServer } from "node:http";
 import { tmpdir } from "node:os";
 import { join, resolve } from "node:path";
@@ -26,7 +28,6 @@ import { fileURLToPath } from "node:url";
 
 import { describe, expect, it, vi } from "vitest";
 import type { ControlPlanePort } from "../contracts/control-plane-port.js";
-import { bindAcpxAgentFiles } from "../drivers/acpx/agent-files-binding.js";
 import type { NativeExecutionInputV1 } from "../contracts/native-execution.js";
 import type {
   NativeSession,
@@ -529,6 +530,69 @@ it("carries the provider attachment seed across consecutive authority rotations"
   });
 });
 
+it("projects a warm Copilot grant onto the remote runner filesystem", () => {
+  const runtimeContext = assignedRuntimeContext("/controller/skills", "/controller/instructions");
+  runtimeContext.instructions.workingCopy = { kind: "agent_files", rootPath: "/remote/registered-agent", entryPath: "AGENTS.md" };
+  const grant = { runtimeContext, instructions: "Read-only instruction sibling root: /controller/instructions" };
+  const projected = runnerdRecoveryInternals.projectCopilotRunGrant(grant, "/remote/session/filesystem");
+  expect(projected.runtimeContext?.instructions.bundle.rootPath).toBe("/remote/session/filesystem/context/instructions");
+  expect(projected.runtimeContext?.skills[0]?.bundle.rootPath).toBe(`/remote/session/filesystem/context/skills/0-${runtimeContext.skills[0]!.bundle.digest.slice(0, 12)}`);
+  expect(projected.runtimeContext?.instructions.workingCopy).toEqual(runtimeContext.instructions.workingCopy);
+  expect(projected.runtimeContext?.aggregateDigest).toBe(runtimeContext.aggregateDigest);
+  expect(projected.instructions).toBe("Read-only instruction sibling root: /remote/session/filesystem/context/instructions");
+  expect(grant.runtimeContext.instructions.bundle.rootPath).toBe("/controller/instructions");
+  expect(runnerdRecoveryInternals.projectCopilotRunGrant(grant)).toEqual(grant);
+});
+
+it("reopens Copilot with the current registered files after collecting the previous run copy", async () => {
+  const root = await mkdtemp(join(tmpdir(), "copilot-current-attachment-"));
+  const previousRoot = join(root, "previous-agent");
+  const currentRoot = join(root, "current-agent");
+  try {
+    await mkdir(previousRoot);
+    await mkdir(currentRoot);
+    await writeFile(join(currentRoot, "AGENTS.md"), "Current instructions.\n");
+    const previousContext = assignedRuntimeContext("/skills", "/bundle");
+    previousContext.instructions.workingCopy = { kind: "agent_files", rootPath: previousRoot, entryPath: "AGENTS.md" };
+    const currentContext = structuredClone(previousContext);
+    currentContext.instructions.workingCopy!.rootPath = currentRoot;
+    const seed = {
+      provider: { kind: "acpx", agent: "copilot", runId: "prior-run", normalizedSessionId: "same-session",
+        instructions: "Previous instructions.", runtimeContext: previousContext, commandDigest: "unchanged", model: "selected-model" },
+    };
+    await rm(previousRoot, { recursive: true });
+    const attached = runnerdRecoveryInternals.rotatedRunAttachPayload(
+      { runAttachTemplate: seed },
+      { runnerInstanceId: "runner", environmentLeaseId: "lease", runId: "current-run", normalizedSessionId: "same-session", turnId: "turn", itemId: "item" },
+      null, undefined,
+      currentContext, { text: "Current instructions.", context: currentContext },
+    );
+    const provider = attached.provider as typeof seed.provider;
+    const files = bindAcpxAgentFiles(provider.runtimeContext, []);
+    expect(files?.root).toBe(await realpath(currentRoot));
+    files?.assertHeld();
+    expect(provider).toMatchObject({ instructions: "Current instructions.", commandDigest: "unchanged", model: "selected-model", normalizedSessionId: "same-session" });
+    expect(seed.provider.runtimeContext).toEqual(previousContext);
+    expect(seed.provider.instructions).toBe("Previous instructions.");
+  } finally { await rm(root, { recursive: true, force: true }); }
+});
+
+it.each(["claude", "codex", "cursor", "pi", "copilot"])("keeps %s's pinned grants on same-run recovery", (agent) => {
+  const identity = { runnerInstanceId: "runner", environmentLeaseId: "lease", runId: "same-run", normalizedSessionId: "session", turnId: "turn", itemId: "item" };
+  const provider = { kind: "acpx", agent, runId: identity.runId, instructions: "Pinned instructions.", runtimeContext: assignedRuntimeContext("/skills", "/pinned") };
+  const payload = runnerdRecoveryInternals.rotatedRunAttachPayload({ runAttachTemplate: { provider } }, identity, null, undefined,
+    undefined);
+  expect(payload.provider).toMatchObject(provider);
+});
+
+it.each(["claude", "codex", "cursor", "pi"])("preserves %s's cross-run context when no new grant is supplied", (agent) => {
+  const provider = { kind: "acpx", agent, runId: "prior-run", instructions: "Pinned instructions.", runtimeContext: assignedRuntimeContext("/skills", "/pinned") };
+  const payload = runnerdRecoveryInternals.rotatedRunAttachPayload({ runAttachTemplate: { provider } },
+    { runnerInstanceId: "runner", environmentLeaseId: "lease", runId: "new-run", normalizedSessionId: "session", turnId: "turn", itemId: "item" }, null, undefined,
+    undefined);
+  expect(payload.provider).toMatchObject({ ...provider, runId: "new-run" });
+  });
+
 it("restores ACPX with the current registered copy after the old run copy is collected", async () => {
   const root = await mkdtemp(join(tmpdir(), "runnerd-acpx-context-rotation-"));
   const priorRoot = join(root, "prior-run-copy");
diff --git a/packages/paperclip-runner/src/live/runnerd-codex-transport.ts b/packages/paperclip-runner/src/live/runnerd-codex-transport.ts
index 4290d68d90b..18d14c588dc 100644
--- a/packages/paperclip-runner/src/live/runnerd-codex-transport.ts
+++ b/packages/paperclip-runner/src/live/runnerd-codex-transport.ts
@@ -25,7 +25,7 @@ import {
   writeFileSync,
 } from "node:fs";
 import { tmpdir } from "node:os";
-import { basename, dirname, resolve } from "node:path";
+import { basename, dirname, posix, resolve } from "node:path";
 import { fileURLToPath } from "node:url";
 
 import type {
@@ -73,7 +73,7 @@ import {
   createSanitizedAwsAgentCoreEnvironment,
   createSanitizedClaudeManagedEnvironment,
 } from "../drivers/claude-managed/environment.js";
-import { composeNativeSystemInstructions, type NativeRuntimeContextSnapshot } from "../contracts/runtime-context.js";
+import { composeNativeSystemInstructions, type NativeRunRuntimeGrant, type NativeRuntimeContextSnapshot } from "../contracts/runtime-context.js";
 import type {
   NativeAcpxPermissionMode,
   NativeOpenCodePermissionMode,
@@ -422,6 +422,22 @@ async function rotateExternalAuthorityEpoch(
   return controlPlaneState;
 }
 
+function projectCopilotRunGrant(
+  grant: NativeRunRuntimeGrant,
+  runnerFilesystemRoot?: string,
+): NativeRunRuntimeGrant {
+  const projected = structuredClone(grant);
+  const context = projected.runtimeContext;
+  if (!runnerFilesystemRoot || !context) return projected;
+  const sourceInstructionRoot = context.instructions.bundle.rootPath;
+  context.instructions.bundle.rootPath = posix.join(runnerFilesystemRoot, "context", "instructions");
+  context.skills.forEach((skill, index) => {
+    skill.bundle.rootPath = posix.join(runnerFilesystemRoot, "context", "skills", `${index}-${skill.bundle.digest.slice(0, 12)}`);
+  });
+  projected.instructions = projected.instructions.replaceAll(sourceInstructionRoot, context.instructions.bundle.rootPath);
+  return projected;
+}
+
 function rotatedRunAttachPayload(
   state: { commands?: unknown; runAttachTemplate?: unknown },
   desired: DurableRecoveryIdentity,
@@ -1472,6 +1488,17 @@ export function expandRunnerdCanonicalNotifications(
   });
 }
 
+/** Keep durable expiry visible to the facade before its terminal notification. */
+export function runnerdRuntimeRequestExpiryNotification(
+  eventType: string, payload: Record<string, unknown>, threadId: string | null, turnId: string | null,
+): CodexRpcNotification | null {
+  if (eventType !== "runtime_request.expired") return null;
+  return { method: "paperclip/runtimeRequestExpired", params: {
+    ...(threadId ? { threadId } : {}), ...(turnId ? { turnId } : {}),
+    payload, itemId: payload.itemId,
+  } };
+}
+
 export function runnerdCanonicalNotificationMethod(
   eventType: string,
   payload: Record<string, unknown>,
@@ -4021,6 +4048,7 @@ class DurablePrpCodexTransport implements CodexAppServerTransport {
     runId: string;
     turnId: string;
     itemId: string;
+    currentRunGrant?: NativeRunRuntimeGrant;
   }): Promise<void> {
     if (this.#pendingWarmRecoveryCompletion !== null) {
       throw new Error("native_runner_warm_transition_completion_pending");
@@ -4030,6 +4058,12 @@ class DurablePrpCodexTransport implements CodexAppServerTransport {
       throw new Error("native_runner_prp_run_rotation_unavailable");
     }
     await this.#awaitWarmRunAttachmentReady();
+    const currentRunGrant = input.currentRunGrant
+      ? projectCopilotRunGrant(input.currentRunGrant, this.options.runnerFilesystemRoot)
+      : undefined;
+    if (this.options.provider === "acpx" && this.options.acpxAgent === "copilot" && !currentRunGrant) {
+      throw new Error("native_runner_current_instruction_grant_unavailable");
+    }
     const prior = core.store.state.identity;
     const desired: DurableRecoveryIdentity = {
       ...prior,
@@ -4059,12 +4093,16 @@ class DurablePrpCodexTransport implements CodexAppServerTransport {
             desired,
             this.#authorizedTools,
             this.options.resumeCompletionContract,
+            currentRunGrant?.runtimeContext,
+            currentRunGrant ? { text: currentRunGrant.instructions, context: currentRunGrant.runtimeContext } : undefined,
           )
         : rotatedRunAttachPayload(
             core.store.state,
             desired,
             this.#authorizedTools,
             this.options.resumeCompletionContract,
+            currentRunGrant?.runtimeContext,
+            currentRunGrant ? { text: currentRunGrant.instructions, context: currentRunGrant.runtimeContext } : undefined,
           );
       this.#runAttachTemplate = structuredClone(runAttachTemplate);
       const payload = {
@@ -5408,6 +5446,10 @@ class DurablePrpCodexTransport implements CodexAppServerTransport {
     });
     this.#core = core;
     if (rotatedAuthority) {
+      if (provider === "acpx" && this.options.acpxAgent === "copilot"
+        && typeof this.options.baseInstructions !== "string") {
+        throw new Error("native_runner_current_instruction_grant_unavailable");
+      }
       const runAttachTemplate = rotatedRunAttachPayload(
         controlPlaneState,
         desiredIdentity,
@@ -6342,6 +6384,13 @@ class DurablePrpCodexTransport implements CodexAppServerTransport {
         ).requestId;
         if (typeof requestId === "string")
           this.#bridgedRuntimeInputs.delete(requestId);
+        // Operator resolution/Stop keep their existing acknowledgement path.
+        const expiry = runnerdRuntimeRequestExpiryNotification(event.eventType, record(eventPayload), this.#threadId, this.#turnId);
+        if (expiry) this.#queue.push({ ...expiry,
+          ...(this.options.environment?.PAPERCLIP_PROVIDER_TRACE_PATH ? { paperclipTrace: {
+            sourceEventId: event.sourceEventId, sourceEventType: event.eventType,
+          } } : {}),
+        });
         continue;
       }
       const sessionUpdatePayload = record(eventPayload);
@@ -7045,6 +7094,7 @@ export const runnerdLaunchProfileInternals = Object.freeze({
 });
 
 export const runnerdRecoveryInternals = Object.freeze({
+  projectCopilotRunGrant,
   completedMaintenanceTerminalReceipt,
   completedMaintenanceTerminalReplayMatches,
   readControlPlaneState,
diff --git a/packages/paperclip-runner/src/native-session-runtime.ts b/packages/paperclip-runner/src/native-session-runtime.ts
index e01dd745e23..c40f591176d 100644
--- a/packages/paperclip-runner/src/native-session-runtime.ts
+++ b/packages/paperclip-runner/src/native-session-runtime.ts
@@ -1,4 +1,5 @@
 import { randomUUID } from "node:crypto";
+import { nativeSystemInstructions } from "./backends/runtime-context.js";
 
 import type {
   CheckpointControlPlaneSessionOptions,
@@ -2004,7 +2005,12 @@ export async function executeNativeSession(
     // state). Prove the provider attachment before opening durable
     // control-plane state because ControlPlanePort has no rollback operation.
     try {
-      await options.existingSession.attachRun({ identity });
+      await options.existingSession.attachRun({ identity,
+        ...(input.provider.kind === "acpx" && input.provider.agent === "copilot"
+          ? { currentRunGrant: { runtimeContext: "runtimeContext" in input ? input.runtimeContext : null,
+              instructions: nativeSystemInstructions(input) } }
+          : {}),
+      });
     } catch (error) {
       // attachRun has no transactional guarantee: a provider may bind the new
       // run before reporting a later failure. Conservatively quarantine the
diff --git a/packages/paperclip-runner/test/acpx-codex-package-contract.test.mjs b/packages/paperclip-runner/test/acpx-codex-package-contract.test.mjs
index 4113b0ba321..3cd71aa3198 100644
--- a/packages/paperclip-runner/test/acpx-codex-package-contract.test.mjs
+++ b/packages/paperclip-runner/test/acpx-codex-package-contract.test.mjs
@@ -87,6 +87,7 @@ test("the package exposes only the reviewed runner CLI binaries", () => {
     "paperclip-runner-eval-session": "./dist/cli/eval-session.js",
     "paperclip-runner-codex-proxy": "./dist/cli/codex-app-server-unix-proxy.js",
     "paperclip-runner-acpx-sidecar": "./dist/cli/acpx-runtime-sidecar.js",
+    "paperclip-runner-copilot-metadata-probe": "./dist/cli/copilot-metadata-probe.js",
     "paperclip-runner-opencode-proxy":
       "./dist/cli/opencode-app-server-proxy.js",
   });
diff --git a/packages/paperclip-runner/test/fixtures/copilot-profile-v14-mainline-pi-identity.json b/packages/paperclip-runner/test/fixtures/copilot-profile-v14-mainline-pi-identity.json
new file mode 100644
index 00000000000..74191266281
--- /dev/null
+++ b/packages/paperclip-runner/test/fixtures/copilot-profile-v14-mainline-pi-identity.json
@@ -0,0 +1,43 @@
+{
+  "commandDigest": "sha256:5e5955c57917a7e7c25703b3ed9e420cd72105eab033b611508dc37fdba3858b",
+  "declaration": {
+    "schema": "paperclip.acpx_profile_declaration.v1",
+    "agent": "copilot",
+    "agentProfileVersion": 14,
+    "acpxVersion": "0.13.1",
+    "agentServerVersion": "1.0.88",
+    "protocolPolicyRevision": "copilot-agent-manual-v1",
+    "acpxPatchSha256": "bd5393058a218040d217fa85449d59a6f30507de54cd645bf0ef21422823f85e",
+    "policySha256": "a4be69be43db84052560420a3ca546a665c9165573c24d543eb33d144ba138a3",
+    "distributionSourceSha256": "c0a65e247fc47b263bd369a3d5ab505c4b323d4e6493be8a9ecbeb0e9dbb9107",
+    "agentFilesBinding": "registered-runtime-context-v1",
+    "systemInstructionDelivery": "COPILOT_HOME/copilot-instructions.md:replace-under-lifetime-lease-before-launch:v1",
+    "sharedRuntimeContract": "paperclip.acpx-runtime-contract.v1",
+    "innerDistributionSourceSha256": "9bb08347eed01f1ab44e065c8b06ead9be3a25973d6e6329dc4c0a099096279a",
+    "upstreamAppSha256": "7b48282a19b5b0814a0c96ad5e3a125173d792cc55f9525b2effea962f6063c0",
+    "patchedAppSha256": "61f8eebe0c30cc03b311c6818b2acb158a6d16ca58c8bfac5ebd42db095c2679",
+    "messageIdentityContract": "copilot-native-message-id-v1",
+    "ownedDistributionDelivery": "COPILOT_CLI_DIST_DIR:lease-owned-guarded-inner-distribution:v1",
+    "permissionContextContract": "copilot-edit-permission-context-v1",
+    "permissionContextSourceSha256": "fe1bb611bea289d81b1c7c973fbb01b93de133a7caa8fe78b7ff4ee1f485b224",
+    "permissionAdapterSourceSha256": "49421a779c76e286ce65d75052026eab9630b1995af9ccf045a2d43d284633ce",
+    "permissionLocationsSourceSha256": "f39a81da395b6e23aa2a1a45572a28846e5e81bfd3d764d9a456f74a79c752e9",
+    "permissionRedactionSourceSha256": "687270d7bbe3dccce6c2fed8664e76cda724b43e545cb153b9f54b018de52927",
+    "permissionClassifierSourceSha256": "1161eabd82e26133e3b3db3ab567f65d52808b03f176e93497e02c8330349fb4",
+    "permissionIdentitySourceSha256": "770b47305e571a81f344883057d0e4a482a1cd59ac77d045836593a8e739deb1",
+    "semanticToolReceiptContract": "paperclip.semantic_tool_receipt.v2",
+    "semanticReceiptSourceSha256": "b2795726b2234a663fec1a6ca11f0551ae69882fe9e82aa39686e952d036e791",
+    "semanticBridgeSourceSha256": "8a43ebafb7a85dd1714ed6945670472666dcb63e8af32b4a74644163fa0e370d",
+    "toolEvidenceSourceSha256": "4b517eed447615b3cc820af348ccc360978175149caa0bbc838d1f78332abe75",
+    "semanticNormalizedInputContract": "validated-forwarded-input-commit-v1",
+    "semanticSidecarSourceSha256": "b83898b2453d0f425275d3bc58140675fc8f14505703103079094093f16be43f",
+    "semanticDirectDriverSourceSha256": "2db465e56ba41f06b406e039e566d9e3aea0a014fc6a47a6a54d5bc682dabcab",
+    "semanticValidationSourceSha256": "039fca52266fe21ba74ca64660d21228314d8ed737b19ba67941bfb25086e4d5",
+    "semanticNormalizationSourceSha256": "b1ce59251bf9c671f66e0e5173646190b9a2d1bfc5bdb7fb123824213986b92b",
+    "semanticCompletionContractSourceSha256": "00a684f9aea87f68eabf0974681c52461bc308631a1252a89c4ed087d7158b28",
+    "semanticValidatorsSourceSha256": "950b49b233d8dd62ff858398becfc55f0a181160cb8a434d9221b5c17816867c",
+    "semanticSchemaBundleSourceSha256": "2974c75590f816fbdbc7806f531698fdc8d62a99601a17625b81de0f074d6383",
+    "semanticSidecarProtocolSourceSha256": "72d9800603a652d6580084bb3b5dac4d4dd6d644324b0d15d293d7c198fd6b55",
+    "semanticSidecarReceiptCommitContract": "correlated-tool-resolve-v1"
+  }
+}
diff --git a/packages/paperclip-runner/test/fixtures/copilot-profile-v15-mainline-pi-identity.json b/packages/paperclip-runner/test/fixtures/copilot-profile-v15-mainline-pi-identity.json
new file mode 100644
index 00000000000..12ef2b3780d
--- /dev/null
+++ b/packages/paperclip-runner/test/fixtures/copilot-profile-v15-mainline-pi-identity.json
@@ -0,0 +1,43 @@
+{
+  "commandDigest": "sha256:8faf47520f156c62c79ea6ca7d1d90a85ddc9a6621f798bd14e87bc6c643bd04",
+  "declaration": {
+    "schema": "paperclip.acpx_profile_declaration.v1",
+    "agent": "copilot",
+    "agentProfileVersion": 15,
+    "acpxVersion": "0.13.1",
+    "agentServerVersion": "1.0.88",
+    "protocolPolicyRevision": "copilot-agent-manual-v1",
+    "acpxPatchSha256": "c0139d0b3af085ec5272a7812c9f89aff0e8618d1d44d9c9e9a59525d1972436",
+    "policySha256": "a4be69be43db84052560420a3ca546a665c9165573c24d543eb33d144ba138a3",
+    "distributionSourceSha256": "c0a65e247fc47b263bd369a3d5ab505c4b323d4e6493be8a9ecbeb0e9dbb9107",
+    "agentFilesBinding": "registered-runtime-context-v1",
+    "systemInstructionDelivery": "COPILOT_HOME/copilot-instructions.md:replace-under-lifetime-lease-before-launch:v1",
+    "sharedRuntimeContract": "paperclip.acpx-runtime-contract.v1",
+    "innerDistributionSourceSha256": "9bb08347eed01f1ab44e065c8b06ead9be3a25973d6e6329dc4c0a099096279a",
+    "upstreamAppSha256": "7b48282a19b5b0814a0c96ad5e3a125173d792cc55f9525b2effea962f6063c0",
+    "patchedAppSha256": "61f8eebe0c30cc03b311c6818b2acb158a6d16ca58c8bfac5ebd42db095c2679",
+    "messageIdentityContract": "copilot-native-message-id-v1",
+    "ownedDistributionDelivery": "COPILOT_CLI_DIST_DIR:lease-owned-guarded-inner-distribution:v1",
+    "permissionContextContract": "copilot-edit-permission-context-v1",
+    "permissionContextSourceSha256": "fe1bb611bea289d81b1c7c973fbb01b93de133a7caa8fe78b7ff4ee1f485b224",
+    "permissionAdapterSourceSha256": "49421a779c76e286ce65d75052026eab9630b1995af9ccf045a2d43d284633ce",
+    "permissionLocationsSourceSha256": "f39a81da395b6e23aa2a1a45572a28846e5e81bfd3d764d9a456f74a79c752e9",
+    "permissionRedactionSourceSha256": "687270d7bbe3dccce6c2fed8664e76cda724b43e545cb153b9f54b018de52927",
+    "permissionClassifierSourceSha256": "1161eabd82e26133e3b3db3ab567f65d52808b03f176e93497e02c8330349fb4",
+    "permissionIdentitySourceSha256": "770b47305e571a81f344883057d0e4a482a1cd59ac77d045836593a8e739deb1",
+    "semanticToolReceiptContract": "paperclip.semantic_tool_receipt.v2",
+    "semanticReceiptSourceSha256": "b2795726b2234a663fec1a6ca11f0551ae69882fe9e82aa39686e952d036e791",
+    "semanticBridgeSourceSha256": "8a43ebafb7a85dd1714ed6945670472666dcb63e8af32b4a74644163fa0e370d",
+    "toolEvidenceSourceSha256": "4b517eed447615b3cc820af348ccc360978175149caa0bbc838d1f78332abe75",
+    "semanticNormalizedInputContract": "validated-forwarded-input-commit-v1",
+    "semanticSidecarSourceSha256": "b83898b2453d0f425275d3bc58140675fc8f14505703103079094093f16be43f",
+    "semanticDirectDriverSourceSha256": "2db465e56ba41f06b406e039e566d9e3aea0a014fc6a47a6a54d5bc682dabcab",
+    "semanticValidationSourceSha256": "039fca52266fe21ba74ca64660d21228314d8ed737b19ba67941bfb25086e4d5",
+    "semanticNormalizationSourceSha256": "b1ce59251bf9c671f66e0e5173646190b9a2d1bfc5bdb7fb123824213986b92b",
+    "semanticCompletionContractSourceSha256": "00a684f9aea87f68eabf0974681c52461bc308631a1252a89c4ed087d7158b28",
+    "semanticValidatorsSourceSha256": "950b49b233d8dd62ff858398becfc55f0a181160cb8a434d9221b5c17816867c",
+    "semanticSchemaBundleSourceSha256": "2974c75590f816fbdbc7806f531698fdc8d62a99601a17625b81de0f074d6383",
+    "semanticSidecarProtocolSourceSha256": "72d9800603a652d6580084bb3b5dac4d4dd6d644324b0d15d293d7c198fd6b55",
+    "semanticSidecarReceiptCommitContract": "correlated-tool-resolve-v1"
+  }
+}
diff --git a/packages/paperclip-runner/test/fixtures/copilot-profile-v16-mainline-pi-identity.json b/packages/paperclip-runner/test/fixtures/copilot-profile-v16-mainline-pi-identity.json
new file mode 100644
index 00000000000..710031028ab
--- /dev/null
+++ b/packages/paperclip-runner/test/fixtures/copilot-profile-v16-mainline-pi-identity.json
@@ -0,0 +1,43 @@
+{
+  "commandDigest": "sha256:8591f9a78a16aac4cf558733cd512f09def483fc11c673504bf93be7476d994c",
+  "declaration": {
+    "schema": "paperclip.acpx_profile_declaration.v1",
+    "agent": "copilot",
+    "agentProfileVersion": 16,
+    "acpxVersion": "0.13.1",
+    "agentServerVersion": "1.0.88",
+    "protocolPolicyRevision": "copilot-agent-manual-v1",
+    "acpxPatchSha256": "00d6af17216cb0cad902b48633eb19bf0ec6b05837a984cb24661fca593f09c1",
+    "policySha256": "a4be69be43db84052560420a3ca546a665c9165573c24d543eb33d144ba138a3",
+    "distributionSourceSha256": "c0a65e247fc47b263bd369a3d5ab505c4b323d4e6493be8a9ecbeb0e9dbb9107",
+    "agentFilesBinding": "registered-runtime-context-v1",
+    "systemInstructionDelivery": "COPILOT_HOME/copilot-instructions.md:replace-under-lifetime-lease-before-launch:v1",
+    "sharedRuntimeContract": "paperclip.acpx-runtime-contract.v1",
+    "innerDistributionSourceSha256": "9bb08347eed01f1ab44e065c8b06ead9be3a25973d6e6329dc4c0a099096279a",
+    "upstreamAppSha256": "7b48282a19b5b0814a0c96ad5e3a125173d792cc55f9525b2effea962f6063c0",
+    "patchedAppSha256": "61f8eebe0c30cc03b311c6818b2acb158a6d16ca58c8bfac5ebd42db095c2679",
+    "messageIdentityContract": "copilot-native-message-id-v1",
+    "ownedDistributionDelivery": "COPILOT_CLI_DIST_DIR:lease-owned-guarded-inner-distribution:v1",
+    "permissionContextContract": "copilot-edit-permission-context-v1",
+    "permissionContextSourceSha256": "fe1bb611bea289d81b1c7c973fbb01b93de133a7caa8fe78b7ff4ee1f485b224",
+    "permissionAdapterSourceSha256": "49421a779c76e286ce65d75052026eab9630b1995af9ccf045a2d43d284633ce",
+    "permissionLocationsSourceSha256": "f39a81da395b6e23aa2a1a45572a28846e5e81bfd3d764d9a456f74a79c752e9",
+    "permissionRedactionSourceSha256": "ad6770c69269087951790e2e87e22ac088e3d432769adf17ebc865ed512e6c4f",
+    "permissionClassifierSourceSha256": "1161eabd82e26133e3b3db3ab567f65d52808b03f176e93497e02c8330349fb4",
+    "permissionIdentitySourceSha256": "770b47305e571a81f344883057d0e4a482a1cd59ac77d045836593a8e739deb1",
+    "semanticToolReceiptContract": "paperclip.semantic_tool_receipt.v2",
+    "semanticReceiptSourceSha256": "b2795726b2234a663fec1a6ca11f0551ae69882fe9e82aa39686e952d036e791",
+    "semanticBridgeSourceSha256": "cf136da18e2cdbefae8e01d23d2c93f64eb7aebccaec938e84c2887c888f87ee",
+    "toolEvidenceSourceSha256": "49d7d09eb6957e596a173b0afd763544afe582f0c1f05cc0992fe51916a8fdb3",
+    "semanticNormalizedInputContract": "validated-forwarded-input-commit-v1",
+    "semanticSidecarSourceSha256": "91629734a80f0d32295cbce2c573b32af9e345f45302ff4525c269f66811aa06",
+    "semanticDirectDriverSourceSha256": "2b7b7eaadee658312816ecdcbcb311ce491521fedf39e2ecb571036c36ff7b8e",
+    "semanticValidationSourceSha256": "039fca52266fe21ba74ca64660d21228314d8ed737b19ba67941bfb25086e4d5",
+    "semanticNormalizationSourceSha256": "8b628b82e8eacc91cdcc6fdca2210ba4cf282f01e9c6f74e95ff271655b5047e",
+    "semanticCompletionContractSourceSha256": "eec0e3740173ea377e73f54da1260a9063606e0dcbc3f08ddb01942a50085f56",
+    "semanticValidatorsSourceSha256": "950b49b233d8dd62ff858398becfc55f0a181160cb8a434d9221b5c17816867c",
+    "semanticSchemaBundleSourceSha256": "2974c75590f816fbdbc7806f531698fdc8d62a99601a17625b81de0f074d6383",
+    "semanticSidecarProtocolSourceSha256": "334b67857bd81e9924186890258cb2ad41f92b1ef68ec60fa5c5d9fbb277673c",
+    "semanticSidecarReceiptCommitContract": "correlated-tool-resolve-v1"
+  }
+}
diff --git a/packages/paperclip-runner/test/fixtures/copilot-profile-v17-mainline-pi-identity.json b/packages/paperclip-runner/test/fixtures/copilot-profile-v17-mainline-pi-identity.json
new file mode 100644
index 00000000000..a35bae20552
--- /dev/null
+++ b/packages/paperclip-runner/test/fixtures/copilot-profile-v17-mainline-pi-identity.json
@@ -0,0 +1,43 @@
+{
+  "commandDigest": "sha256:481d0852ae8272a90f9912723d540518a874a0da65a9070e33b52ea1a14cbd7f",
+  "declaration": {
+    "schema": "paperclip.acpx_profile_declaration.v1",
+    "agent": "copilot",
+    "agentProfileVersion": 17,
+    "acpxVersion": "0.13.1",
+    "agentServerVersion": "1.0.88",
+    "protocolPolicyRevision": "copilot-agent-manual-v1",
+    "acpxPatchSha256": "00d6af17216cb0cad902b48633eb19bf0ec6b05837a984cb24661fca593f09c1",
+    "policySha256": "a4be69be43db84052560420a3ca546a665c9165573c24d543eb33d144ba138a3",
+    "distributionSourceSha256": "c0a65e247fc47b263bd369a3d5ab505c4b323d4e6493be8a9ecbeb0e9dbb9107",
+    "agentFilesBinding": "registered-runtime-context-v1",
+    "systemInstructionDelivery": "COPILOT_HOME/copilot-instructions.md:replace-under-lifetime-lease-before-launch:v1",
+    "sharedRuntimeContract": "paperclip.acpx-runtime-contract.v1",
+    "innerDistributionSourceSha256": "9bb08347eed01f1ab44e065c8b06ead9be3a25973d6e6329dc4c0a099096279a",
+    "upstreamAppSha256": "7b48282a19b5b0814a0c96ad5e3a125173d792cc55f9525b2effea962f6063c0",
+    "patchedAppSha256": "61f8eebe0c30cc03b311c6818b2acb158a6d16ca58c8bfac5ebd42db095c2679",
+    "messageIdentityContract": "copilot-native-message-id-v1",
+    "ownedDistributionDelivery": "COPILOT_CLI_DIST_DIR:lease-owned-guarded-inner-distribution:v1",
+    "permissionContextContract": "copilot-edit-permission-context-v1",
+    "permissionContextSourceSha256": "fe1bb611bea289d81b1c7c973fbb01b93de133a7caa8fe78b7ff4ee1f485b224",
+    "permissionAdapterSourceSha256": "49421a779c76e286ce65d75052026eab9630b1995af9ccf045a2d43d284633ce",
+    "permissionLocationsSourceSha256": "f39a81da395b6e23aa2a1a45572a28846e5e81bfd3d764d9a456f74a79c752e9",
+    "permissionRedactionSourceSha256": "ad6770c69269087951790e2e87e22ac088e3d432769adf17ebc865ed512e6c4f",
+    "permissionClassifierSourceSha256": "1161eabd82e26133e3b3db3ab567f65d52808b03f176e93497e02c8330349fb4",
+    "permissionIdentitySourceSha256": "770b47305e571a81f344883057d0e4a482a1cd59ac77d045836593a8e739deb1",
+    "semanticToolReceiptContract": "paperclip.semantic_tool_receipt.v2",
+    "semanticReceiptSourceSha256": "b2795726b2234a663fec1a6ca11f0551ae69882fe9e82aa39686e952d036e791",
+    "semanticBridgeSourceSha256": "cf136da18e2cdbefae8e01d23d2c93f64eb7aebccaec938e84c2887c888f87ee",
+    "toolEvidenceSourceSha256": "49d7d09eb6957e596a173b0afd763544afe582f0c1f05cc0992fe51916a8fdb3",
+    "semanticNormalizedInputContract": "validated-forwarded-input-commit-v1",
+    "semanticSidecarSourceSha256": "91629734a80f0d32295cbce2c573b32af9e345f45302ff4525c269f66811aa06",
+    "semanticDirectDriverSourceSha256": "2b7b7eaadee658312816ecdcbcb311ce491521fedf39e2ecb571036c36ff7b8e",
+    "semanticValidationSourceSha256": "3b0ac8d3f3cb92747d0bcea472ab0419a140e1cfdc43047e2c22542acc2d105f",
+    "semanticNormalizationSourceSha256": "8b628b82e8eacc91cdcc6fdca2210ba4cf282f01e9c6f74e95ff271655b5047e",
+    "semanticCompletionContractSourceSha256": "fa2b0c81cb9a62965839c905db81b930794774d8d557a01bce077dae5830b594",
+    "semanticValidatorsSourceSha256": "4f0219ed00938c5d8bc1b11532ecab9c13230012b23bfd6b7dd6b992e58e98d5",
+    "semanticSchemaBundleSourceSha256": "fe82ac2cbf194d31ac801de6a3cacfb165cb34146c5c26557f283b8c87a5f01e",
+    "semanticSidecarProtocolSourceSha256": "334b67857bd81e9924186890258cb2ad41f92b1ef68ec60fa5c5d9fbb277673c",
+    "semanticSidecarReceiptCommitContract": "correlated-tool-resolve-v1"
+  }
+}
diff --git a/packages/paperclip-runner/test/fixtures/copilot-profile-v33-identity.json b/packages/paperclip-runner/test/fixtures/copilot-profile-v33-identity.json
new file mode 100644
index 00000000000..e5313db602d
--- /dev/null
+++ b/packages/paperclip-runner/test/fixtures/copilot-profile-v33-identity.json
@@ -0,0 +1,81 @@
+{
+  "commandDigest": "sha256:482c4e997b4690c7e4a5375dd035560aaad69000f8f5291904d76f8c3a88284a",
+  "declaration": {
+    "schema": "paperclip.acpx_profile_declaration.v1",
+    "agent": "copilot",
+    "agentProfileVersion": 33,
+    "acpxVersion": "0.13.1",
+    "agentServerVersion": "1.0.88",
+    "protocolPolicyRevision": "copilot-agent-manual-v1",
+    "acpxPatchSha256": "fedf1e498c1e19daf9c973d475234488aa9acabbf1b9de890245bfac7a534483",
+    "policySha256": "a4be69be43db84052560420a3ca546a665c9165573c24d543eb33d144ba138a3",
+    "distributionSourceSha256": "c0a65e247fc47b263bd369a3d5ab505c4b323d4e6493be8a9ecbeb0e9dbb9107",
+    "agentFilesBinding": "registered-runtime-context-v1",
+    "systemInstructionDelivery": "COPILOT_HOME/copilot-instructions.md:replace-under-lifetime-lease-before-launch:v1",
+    "sharedRuntimeContract": "paperclip.acpx-runtime-contract.v1",
+    "innerDistributionSourceSha256": "9bb08347eed01f1ab44e065c8b06ead9be3a25973d6e6329dc4c0a099096279a",
+    "upstreamAppSha256": "7b48282a19b5b0814a0c96ad5e3a125173d792cc55f9525b2effea962f6063c0",
+    "patchedAppSha256": "61f8eebe0c30cc03b311c6818b2acb158a6d16ca58c8bfac5ebd42db095c2679",
+    "messageIdentityContract": "copilot-native-message-id-v1",
+    "ownedDistributionDelivery": "COPILOT_CLI_DIST_DIR:lease-owned-guarded-inner-distribution:v1",
+    "permissionContextContract": "copilot-edit-permission-context-v1",
+    "permissionContextSourceSha256": "de2d38d702b3c574161af0c0c04790fb6f6347916eb3916ce7a131a8c229121b",
+    "permissionAdapterSourceSha256": "eebcc1ec9bc8caa8d1edf0cbda74bd69f5c55cf8d65a0503e95798b9979a19dc",
+    "permissionLocationsSourceSha256": "f39a81da395b6e23aa2a1a45572a28846e5e81bfd3d764d9a456f74a79c752e9",
+    "permissionRedactionSourceSha256": "ad6770c69269087951790e2e87e22ac088e3d432769adf17ebc865ed512e6c4f",
+    "permissionClassifierSourceSha256": "1161eabd82e26133e3b3db3ab567f65d52808b03f176e93497e02c8330349fb4",
+    "semanticToolReceiptContract": "paperclip.semantic_tool_receipt.v2",
+    "semanticReceiptSourceSha256": "b2795726b2234a663fec1a6ca11f0551ae69882fe9e82aa39686e952d036e791",
+    "semanticBridgeSourceSha256": "cf136da18e2cdbefae8e01d23d2c93f64eb7aebccaec938e84c2887c888f87ee",
+    "toolEvidenceSourceSha256": "4b517eed447615b3cc820af348ccc360978175149caa0bbc838d1f78332abe75",
+    "semanticNormalizedInputContract": "validated-forwarded-input-commit-v1",
+    "semanticSidecarSourceSha256": "49f7cb882fa09dcf879a2234d3e7b43fe72895d2c0f1e9b72fcbe18f012423bb",
+    "semanticDirectDriverSourceSha256": "3cea77a03c8822d68f77f090457176a9190facbec7d88ddf8c583c0e42245f70",
+    "semanticValidationSourceSha256": "3b0ac8d3f3cb92747d0bcea472ab0419a140e1cfdc43047e2c22542acc2d105f",
+    "semanticNormalizationSourceSha256": "8b628b82e8eacc91cdcc6fdca2210ba4cf282f01e9c6f74e95ff271655b5047e",
+    "semanticCompletionContractSourceSha256": "fa2b0c81cb9a62965839c905db81b930794774d8d557a01bce077dae5830b594",
+    "semanticValidatorsSourceSha256": "328436d29148e0b79ce36f36c764b3d780913bdb90d174d1ea03cf1f59b5ef13",
+    "semanticSchemaBundleSourceSha256": "d8cef4a9ebc136a3d37f3d0be7161986e6d65420e2ec734cfd0dfa468c665c97",
+    "semanticSidecarProtocolSourceSha256": "907b2cdc1a5291c6fb570855bbcc66cb196b5cf64195d5dc201148940678460a",
+    "semanticSidecarReceiptCommitContract": "correlated-tool-resolve-v1",
+    "displayEventSourceSha256": "d72f9a6035c247bc6a42c067c05753076c54322c4b58984e93922f3325dc6877",
+    "displayProjectionSourceSha256": "75952606b26dd93bbc582c1f0a4424487377272ea745fb3a27ceae031fd5dc7e",
+    "configuredEnvironmentSourceSha256": "a03575b3a737dea60da94cf0fa1feed80719a9aaa7f09456eb57a845d9e8e087",
+    "configuredEnvironmentRustSourceSha256": "55d44e48e217385b5c64b1b7d8df16dda62319ca3fb524e452fd78c9ed804d3b",
+    "profileActivitySourceSha256": "4fdb6b0f9125fd8372ba6f27945fa5c8a3d3b2ec891df544092e3dc7a75d5282",
+    "profileExtensionsSourceSha256": "0565d13d4064ed8c501d6ffda6d7bffca4493552de8aaa7fc12178dabb3ca435",
+    "profileInstallationSourceSha256": "7c26545922fc85db75a5db6bf3f6e21e381b6e189f4f51243b19ee237b93f8b1",
+    "attachmentPolicySourceSha256": "ce8027d1f8e2b7fd35df56a75ba162fd9696d1569c016b60bc9f0de1252cd958",
+    "singleReadEvidenceSourceSha256": "4069393405089bde613cecec04f5123c426594811da4c668bd96f0e7e283550f",
+    "nativeSessionRuntimeSourceSha256": "aac818c1cf50a25899ae95cafc70f093c8cd8af37d19f88cbb7847b4d202d2b6",
+    "nativeRuntimeContextSourceSha256": "af192af3fa511347045dfdb86d443be9aa046a4c56bdb48198668cf4d30581b8",
+    "nativeSessionContractSourceSha256": "93251b1eadc686e9d8339d4dfc50b995a3d0a9e6ad8aedc6f2bdf7e30c16138d",
+    "harnessSessionContractSourceSha256": "75ae4607312ec13466dd2f4ac87f000302b7b5a952cb6d4b51573fa8b7c35d82",
+    "harnessBackendSourceSha256": "3b11fd93b82ef13d5e6396217e3f102f900437f4d32efb00a9d75a9d2214e6ff",
+    "harnessSessionSourceSha256": "a9d748b8530544342bbc9f59968816664872782a0865db76ca15f28a1705697b",
+    "transportContractSourceSha256": "16f358c75dd4ae80af3ca921394c5899b15942b80b553e43ddfabb41c1bf31d3",
+    "nativeBackendSourceSha256": "a23afeab7e7094cb7e3df05e7a9eac822d0144d8c44893dbcc8a0e7b2bce0c85",
+    "nativeBackendFactorySourceSha256": "ce22825a53669f8c2db5aaa890bae94af19ede22295bda4ed7987a31d804cd8a",
+    "nativeInstructionsSourceSha256": "ea85be2aca8dfbd6b4042dcd7b1ed9db9a57baf8c379649a3f5d7d80ca54a6a2",
+    "runtimeRequestBridgeSourceSha256": "c449568f8abf7e90d5ae7a83b49809d9166461398f8b3046e4fe5f3367f3b052",
+    "runtimeRequestFacadeSourceSha256": "3d70c6025169779f7886ddf363a1c6fda4add5d14fa3cd49aea46aa1f6a9d8ec",
+    "runtimeRequestNotificationSourceSha256": "6196c6175f11c69295dc00fc773201f4fdeca26c500653870253c43b81e65211",
+    "guardedInstallationSourceSha256": "8afd25df307772e484e179e58bf54ce1510fe92be694482111d589f9f0ae6e77",
+    "nativeExecutionSourceSha256": "4cdd702c233bf0d086ff2aeea8f02c6db8817ba0c0bcb5e64e355ee7a1c2dd77",
+    "profileCompatibilitySourceSha256": "7e6afda2d2e5f1cdd09aaa75e4697905a40be175c6065b630b5dffa39c2c99a6",
+    "installationSourceSha256": "9934653d6983905930099b1691b1f0c05461e04e950bb27dd0f92e64fc8e28e1",
+    "assetOwnershipSourceSha256": "43005b7e896e0546c1f44cbe4ff3f34ad6d71f275f4b9a8113f73a71e77930c4",
+    "assetInstallerSourceSha256": "d3bd9514e5920d0cc3567aa50487fb534c57a6f66b8da0d3f22c5f6e499c841f",
+    "credentialBindingSourceSha256": "d5c200bea2e8ab730eb56e32ce2070c8a1b5407e5907108640f76a463d9b9c9c",
+    "sidecarErrorSourceSha256": "23f3dbdc1ce488c690d218a854c820f4b4f3edd822bad574d67707314f8c512a",
+    "profileSourceSha256": "baf0b64371fada6c92331f9f88e915292b2761c029fd86452f6de32e26dc7fd6",
+    "metadataProbeSourceSha256": "826e74747a89b83a6f546ee1355de64ae5265eb920b50ae498a41dd561a493ee",
+    "permissionToolIdentitySourceSha256": "770b47305e571a81f344883057d0e4a482a1cd59ac77d045836593a8e739deb1",
+    "runtimeHostSourceSha256": "83a5ae07c19681ab195f76363661c2381494b243343270ba363d4db2088932a5",
+    "runtimeAdapterSourceSha256": "a1a8784f5883d2c93df6e3695d5499b83e226efb4f26e558639c4e7dbcc2d67a",
+    "runtimeSandboxSourceSha256": "4acec4c9757fe5ef5f2788ce20ced8ca4fde8edcfb63b59d0effcfd4316c048d",
+    "cancellationSourceSha256": "a07d1a9e982dec0ae130c1ad1efa5bc75c6a39e013b730ba3ee45256f09ceeca",
+    "agentFilesSourceSha256": "fb32f6badc13dfa22f231479509b631b2f0eba0c99b1ab9f3cd5c0c601aa03ba",
+    "nativeDistributionSourceSha256": "9bbe8329064ee88418528394f8e1cdc716a0b2b35092dc70729b8850e46b7a68"
+  }
+}
diff --git a/packages/paperclip-runner/test/fixtures/copilot-profile-v34-identity.json b/packages/paperclip-runner/test/fixtures/copilot-profile-v34-identity.json
new file mode 100644
index 00000000000..e65d6be0e4a
--- /dev/null
+++ b/packages/paperclip-runner/test/fixtures/copilot-profile-v34-identity.json
@@ -0,0 +1,81 @@
+{
+  "commandDigest": "sha256:6dde98a9dbadf22f17ca28f133dbe2a65fa199827741190f569704e44bdc20ed",
+  "declaration": {
+    "schema": "paperclip.acpx_profile_declaration.v1",
+    "agent": "copilot",
+    "agentProfileVersion": 34,
+    "acpxVersion": "0.13.1",
+    "agentServerVersion": "1.0.88",
+    "protocolPolicyRevision": "copilot-agent-manual-v1",
+    "acpxPatchSha256": "00d6af17216cb0cad902b48633eb19bf0ec6b05837a984cb24661fca593f09c1",
+    "policySha256": "a4be69be43db84052560420a3ca546a665c9165573c24d543eb33d144ba138a3",
+    "distributionSourceSha256": "c0a65e247fc47b263bd369a3d5ab505c4b323d4e6493be8a9ecbeb0e9dbb9107",
+    "agentFilesBinding": "registered-runtime-context-v1",
+    "systemInstructionDelivery": "COPILOT_HOME/copilot-instructions.md:replace-under-lifetime-lease-before-launch:v1",
+    "sharedRuntimeContract": "paperclip.acpx-runtime-contract.v1",
+    "innerDistributionSourceSha256": "9bb08347eed01f1ab44e065c8b06ead9be3a25973d6e6329dc4c0a099096279a",
+    "upstreamAppSha256": "7b48282a19b5b0814a0c96ad5e3a125173d792cc55f9525b2effea962f6063c0",
+    "patchedAppSha256": "61f8eebe0c30cc03b311c6818b2acb158a6d16ca58c8bfac5ebd42db095c2679",
+    "messageIdentityContract": "copilot-native-message-id-v1",
+    "ownedDistributionDelivery": "COPILOT_CLI_DIST_DIR:lease-owned-guarded-inner-distribution:v1",
+    "permissionContextContract": "copilot-edit-permission-context-v1",
+    "permissionContextSourceSha256": "de2d38d702b3c574161af0c0c04790fb6f6347916eb3916ce7a131a8c229121b",
+    "permissionAdapterSourceSha256": "ee5929ed2ee647ad0369465dee9d51a00b2dd28e1ff735b43e969ddc9c164668",
+    "permissionLocationsSourceSha256": "f39a81da395b6e23aa2a1a45572a28846e5e81bfd3d764d9a456f74a79c752e9",
+    "permissionRedactionSourceSha256": "ad6770c69269087951790e2e87e22ac088e3d432769adf17ebc865ed512e6c4f",
+    "permissionClassifierSourceSha256": "1161eabd82e26133e3b3db3ab567f65d52808b03f176e93497e02c8330349fb4",
+    "semanticToolReceiptContract": "paperclip.semantic_tool_receipt.v2",
+    "semanticReceiptSourceSha256": "b2795726b2234a663fec1a6ca11f0551ae69882fe9e82aa39686e952d036e791",
+    "semanticBridgeSourceSha256": "cf136da18e2cdbefae8e01d23d2c93f64eb7aebccaec938e84c2887c888f87ee",
+    "toolEvidenceSourceSha256": "49d7d09eb6957e596a173b0afd763544afe582f0c1f05cc0992fe51916a8fdb3",
+    "semanticNormalizedInputContract": "validated-forwarded-input-commit-v1",
+    "semanticSidecarSourceSha256": "7fd06053db98cc763c7205424069a5286c9d4cfefb3d197a4a765c693dccb7e6",
+    "semanticDirectDriverSourceSha256": "77882e21ad45b66a688fd1933dbd4fc89fad38e8c1f092805cb9485bdd5223c5",
+    "semanticValidationSourceSha256": "3b0ac8d3f3cb92747d0bcea472ab0419a140e1cfdc43047e2c22542acc2d105f",
+    "semanticNormalizationSourceSha256": "8b628b82e8eacc91cdcc6fdca2210ba4cf282f01e9c6f74e95ff271655b5047e",
+    "semanticCompletionContractSourceSha256": "fa2b0c81cb9a62965839c905db81b930794774d8d557a01bce077dae5830b594",
+    "semanticValidatorsSourceSha256": "4f0219ed00938c5d8bc1b11532ecab9c13230012b23bfd6b7dd6b992e58e98d5",
+    "semanticSchemaBundleSourceSha256": "fe82ac2cbf194d31ac801de6a3cacfb165cb34146c5c26557f283b8c87a5f01e",
+    "semanticSidecarProtocolSourceSha256": "334b67857bd81e9924186890258cb2ad41f92b1ef68ec60fa5c5d9fbb277673c",
+    "semanticSidecarReceiptCommitContract": "correlated-tool-resolve-v1",
+    "displayEventSourceSha256": "d72f9a6035c247bc6a42c067c05753076c54322c4b58984e93922f3325dc6877",
+    "displayProjectionSourceSha256": "75952606b26dd93bbc582c1f0a4424487377272ea745fb3a27ceae031fd5dc7e",
+    "configuredEnvironmentSourceSha256": "a03575b3a737dea60da94cf0fa1feed80719a9aaa7f09456eb57a845d9e8e087",
+    "configuredEnvironmentRustSourceSha256": "55d44e48e217385b5c64b1b7d8df16dda62319ca3fb524e452fd78c9ed804d3b",
+    "profileActivitySourceSha256": "4fdb6b0f9125fd8372ba6f27945fa5c8a3d3b2ec891df544092e3dc7a75d5282",
+    "profileExtensionsSourceSha256": "a80ddc95eb4505095bfdbbf85c758199949ab20be9c84b34c77f762eb7180571",
+    "profileInstallationSourceSha256": "e4aacb08015fa9104dce2b0c7d150cc432231c8a3e07d2cec2a325b388f7f382",
+    "attachmentPolicySourceSha256": "4f7638b7cc64e18f6a4ba33fd46de2b3d49225e32aeab41f5c695b268fa4f8e2",
+    "singleReadEvidenceSourceSha256": "4069393405089bde613cecec04f5123c426594811da4c668bd96f0e7e283550f",
+    "nativeSessionRuntimeSourceSha256": "aac818c1cf50a25899ae95cafc70f093c8cd8af37d19f88cbb7847b4d202d2b6",
+    "nativeRuntimeContextSourceSha256": "0b350f5f4044f342b974254738bab45a470c24db9352b04c92d785d26e7853c8",
+    "nativeSessionContractSourceSha256": "93251b1eadc686e9d8339d4dfc50b995a3d0a9e6ad8aedc6f2bdf7e30c16138d",
+    "harnessSessionContractSourceSha256": "9e3d62b712cae91168c96d11ff850b97a144809b5cddfe08ec9a91229e9bfc40",
+    "harnessBackendSourceSha256": "46fd6523f986d5406eca3b420fe920f1d51a6435fb7afc2acf4d21be13af447f",
+    "harnessSessionSourceSha256": "4dff9bb3370c5560cfc910a7ee814a27725b469c3b1b5dc021e3c0b158ebe746",
+    "transportContractSourceSha256": "5cd208fe11c3bedd476494b0609fb32efbabe4a1170e2c5854d0aa5e429bd6f4",
+    "nativeBackendSourceSha256": "294b9d830bc58c05985087875523db133d32cf999703140fd927e843399424db",
+    "nativeBackendFactorySourceSha256": "ce22825a53669f8c2db5aaa890bae94af19ede22295bda4ed7987a31d804cd8a",
+    "nativeInstructionsSourceSha256": "ea85be2aca8dfbd6b4042dcd7b1ed9db9a57baf8c379649a3f5d7d80ca54a6a2",
+    "runtimeRequestBridgeSourceSha256": "a66ee14f858ccf75c69dfbce132900a30724fe1e6baffc26b02d58a6bc5924ac",
+    "runtimeRequestFacadeSourceSha256": "e1993906ac9f47eb4ea04ae815db869ecde72f582af460cc0080308670612c8f",
+    "runtimeRequestNotificationSourceSha256": "6196c6175f11c69295dc00fc773201f4fdeca26c500653870253c43b81e65211",
+    "guardedInstallationSourceSha256": "2881b655112f165320a73753385cd54286139a0273a5fa30c1b43fc3b5981a25",
+    "nativeExecutionSourceSha256": "9c702e518862c396ccfa12d84d11cb8dec1fc064c595359e31cc3e299a7378cc",
+    "profileCompatibilitySourceSha256": "20f8aaa363496a4cbede0f33aeacf869fb50171eaee2d63a892c65b3bda4c6a1",
+    "installationSourceSha256": "a1c7c6f103b898216973e77ffbac0ef7572e250aa574d1a4065270e9dfa0dc2d",
+    "assetOwnershipSourceSha256": "1785e3f31e5dad5a13b53e25d8cf9482a9bd89a27b6c127830aed6b81acc605c",
+    "assetInstallerSourceSha256": "d3bd9514e5920d0cc3567aa50487fb534c57a6f66b8da0d3f22c5f6e499c841f",
+    "credentialBindingSourceSha256": "f8dc40ea1aa894bd44754a35a8f65fbcaa2f4c7ffc88cc5fdaa965e0d378d9bc",
+    "sidecarErrorSourceSha256": "23f3dbdc1ce488c690d218a854c820f4b4f3edd822bad574d67707314f8c512a",
+    "profileSourceSha256": "baf0b64371fada6c92331f9f88e915292b2761c029fd86452f6de32e26dc7fd6",
+    "metadataProbeSourceSha256": "826e74747a89b83a6f546ee1355de64ae5265eb920b50ae498a41dd561a493ee",
+    "permissionToolIdentitySourceSha256": "770b47305e571a81f344883057d0e4a482a1cd59ac77d045836593a8e739deb1",
+    "runtimeHostSourceSha256": "cd825fe44b1d142aff2d293c3fc8a64d55e42a98bdea48e4d4b90f3a3163d232",
+    "runtimeAdapterSourceSha256": "3aea6448dc6474e465e5267b61798ad5449bdaec3f4a41bc4be831426893a9bb",
+    "runtimeSandboxSourceSha256": "b68686298054da576baa5544fe1364d9febe3f5d6aab5c49f9c69f011764afd3",
+    "cancellationSourceSha256": "a07d1a9e982dec0ae130c1ad1efa5bc75c6a39e013b730ba3ee45256f09ceeca",
+    "agentFilesSourceSha256": "fb32f6badc13dfa22f231479509b631b2f0eba0c99b1ab9f3cd5c0c601aa03ba",
+    "nativeDistributionSourceSha256": "aed327c389e957483a503cb1bb8b247ee7cd7ff4b528fb4567c39bcb4577690b"
+  }
+}
diff --git a/server/scripts/install-copilot-assets.mjs b/server/scripts/install-copilot-assets.mjs
new file mode 100644
index 00000000000..9960da267c0
--- /dev/null
+++ b/server/scripts/install-copilot-assets.mjs
@@ -0,0 +1,18 @@
+import { access } from "node:fs/promises";
+import { fileURLToPath } from "node:url";
+
+const installer = new URL("../dist/install-copilot-assets.mjs", import.meta.url);
+try {
+  await access(fileURLToPath(installer));
+} catch (error) {
+  if (error.code !== "ENOENT") throw error;
+  // Dependencies install before compilation in a source workspace. Published
+  // server packages omit src and cannot take this bootstrap exception.
+  await access(fileURLToPath(new URL("../src/services/copilot-connection-probe.ts", import.meta.url)));
+  await access(fileURLToPath(new URL("../../pnpm-workspace.yaml", import.meta.url)));
+  process.stdout.write("Copilot runtime assets: source-workspace-pending-build\n");
+  process.exit(0);
+}
+const { installCopilotAssets } = await import(installer.href);
+const result = await installCopilotAssets();
+process.stdout.write(`Copilot runtime assets: ${result.status} (${result.target})\n`);