diff --git a/.dockerignore b/.dockerignore
index 30d3d533bf..b96a720864 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -44,6 +44,7 @@ packages/paperclip-runner/test/**
 packages/paperclip-runner/test/fixtures/**
 !packages/paperclip-runner/test/fixtures/copilot-profile-v16-identity.json
 !packages/paperclip-runner/test/fixtures/copilot-profile-v17-identity.json
+!packages/paperclip-runner/test/fixtures/copilot-profile-v18-identity.json
 !packages/paperclip-runner/test-fixtures
 packages/paperclip-runner/test-fixtures/**
 !packages/paperclip-runner/test-fixtures/pi-acp
diff --git a/packages/paperclip-runner/acpx-profiles.json b/packages/paperclip-runner/acpx-profiles.json
index 81a3e15905..8bb7631619 100644
--- a/packages/paperclip-runner/acpx-profiles.json
+++ b/packages/paperclip-runner/acpx-profiles.json
@@ -32,12 +32,12 @@
       "requiresProviderPolicy": true
     },
     "copilot": {
-      "agentProfileVersion": 17,
+      "agentProfileVersion": 18,
       "agentServerPackage": "@github/copilot",
       "agentServerVersion": "1.0.88",
       "agentRuntimePackage": null,
       "agentRuntimeVersion": null,
-      "commandDigest": "sha256:481d0852ae8272a90f9912723d540518a874a0da65a9070e33b52ea1a14cbd7f",
+      "commandDigest": "sha256:e08c25d07389522abfcda22d081ea25bac370576c3e0ee8ad3fe96c4b653f036",
       "requiresProviderPolicy": true,
       "qualificationStatus": "pending"
     },
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 28f4d2a775..73dc8fa23d 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:e08c25d07389522abfcda22d081ea25bac370576c3e0ee8ad3fe96c4b653f036",
             requires_provider_policy: true,
         },
         "claude" => AcpxReleaseProfile {
diff --git a/packages/paperclip-runner/scripts/generate-acpx-profiles.mjs b/packages/paperclip-runner/scripts/generate-acpx-profiles.mjs
index afdd2013b6..eca1ad44ee 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-v18-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/src/drivers/acpx/copilot-installation.test.ts b/packages/paperclip-runner/src/drivers/acpx/copilot-installation.test.ts
index 999efa6eed..a7c2a5c079 100644
--- a/packages/paperclip-runner/src/drivers/acpx/copilot-installation.test.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/copilot-installation.test.ts
@@ -87,8 +87,27 @@ describe("Copilot build-owned installation", () => {
     expect(QUALIFIED_ACPX_PROFILES.copilot.qualificationStatus).toBe("pending");
   });
 
-  it("admits the current v17 declaration and binds its source policy, receipts and patch hashes", () => {
-    const identity = JSON.parse(readFileSync(new URL("../../../test/fixtures/copilot-profile-v17-identity.json", import.meta.url), "utf8"));
+  it("preserves v17 history while binding admission stage diagnostics", async () => {
+    const prior = JSON.parse(readFileSync(new URL("../../../test/fixtures/copilot-profile-v17-identity.json", import.meta.url), "utf8"));
+    const current = JSON.parse(readFileSync(new URL("../../../test/fixtures/copilot-profile-v18-identity.json", import.meta.url), "utf8"));
+    expect(Object.keys(current.declaration).filter(key => current.declaration[key] !== prior.declaration[key]).sort()).toEqual(["agentProfileVersion", "semanticSidecarSourceSha256"]);
+    expect(prior.declaration.agentProfileVersion).toBe(17);
+    expect(current.declaration.agentProfileVersion).toBe(18);
+    const sorted = Object.fromEntries(Object.entries(prior.declaration).sort(([a], [b]) => a.localeCompare(b)));
+    expect(`sha256:${createHash("sha256").update(JSON.stringify(sorted)).digest("hex")}`).toBe(prior.commandDigest);
+    expect(current.commandDigest).not.toBe(prior.commandDigest);
+    expect(QUALIFIED_ACPX_PROFILES.copilot.qualificationStatus).toBe("pending");
+    vi.mocked(verifyNativeAcpxInstallation).mockClear();
+    for (const override of [
+      { commandDigest: prior.commandDigest },
+      { agentProfileVersion: prior.declaration.agentProfileVersion },
+      { commandDigest: prior.commandDigest, agentProfileVersion: prior.declaration.agentProfileVersion },
+    ]) await expect(verifyCopilotInstallation({ ...QUALIFIED_ACPX_PROFILES.copilot, ...override })).rejects.toThrow("exact pinned");
+    expect(verifyNativeAcpxInstallation).not.toHaveBeenCalled();
+  });
+
+  it("admits the current v18 declaration and binds its source policy, receipts and patch hashes", () => {
+    const identity = JSON.parse(readFileSync(new URL("../../../test/fixtures/copilot-profile-v18-identity.json", import.meta.url), "utf8"));
     expect(identity.declaration.systemInstructionDelivery).toBe(COPILOT_SYSTEM_INSTRUCTION_DELIVERY);
     expect(identity.declaration.sharedRuntimeContract).toBe("paperclip.acpx-runtime-contract.v1");
     expect(identity.declaration.permissionContextContract).toBe(COPILOT_PERMISSION_CONTEXT_CONTRACT);
@@ -119,7 +138,7 @@ describe("Copilot build-owned installation", () => {
     expect([...closure].filter(path => !bound.has(path))).toEqual(["negative-control:unbound-policy"]);
   });
   it.each([...PERMISSION_POLICY_SOURCES, ...SEMANTIC_RECEIPT_SOURCES])("changing %s changes the candidate identity", (_path, field) => {
-    const identity = JSON.parse(readFileSync(new URL("../../../test/fixtures/copilot-profile-v17-identity.json", import.meta.url), "utf8"));
+    const identity = JSON.parse(readFileSync(new URL("../../../test/fixtures/copilot-profile-v18-identity.json", import.meta.url), "utf8"));
     identity.declaration[field] = "0".repeat(64);
     const sorted = Object.fromEntries(Object.entries(identity.declaration).sort(([a], [b]) => a.localeCompare(b)));
     expect(`sha256:${createHash("sha256").update(JSON.stringify(sorted)).digest("hex")}`).not.toBe(identity.commandDigest);
diff --git a/packages/paperclip-runner/src/drivers/acpx/generated-profiles.ts b/packages/paperclip-runner/src/drivers/acpx/generated-profiles.ts
index 3a0bf38cf3..68d93b9840 100644
--- a/packages/paperclip-runner/src/drivers/acpx/generated-profiles.ts
+++ b/packages/paperclip-runner/src/drivers/acpx/generated-profiles.ts
@@ -48,12 +48,12 @@ export const QUALIFIED_ACPX_PROFILE_DATA = {
     "protocolVersion": 1,
     "acpxVersion": "0.13.1",
     "agent": "copilot",
-    "agentProfileVersion": 17,
+    "agentProfileVersion": 18,
     "agentServerPackage": "@github/copilot",
     "agentServerVersion": "1.0.88",
     "agentRuntimePackage": null,
     "agentRuntimeVersion": null,
-    "commandDigest": "sha256:481d0852ae8272a90f9912723d540518a874a0da65a9070e33b52ea1a14cbd7f",
+    "commandDigest": "sha256:e08c25d07389522abfcda22d081ea25bac370576c3e0ee8ad3fe96c4b653f036",
     "qualificationStatus": "pending",
     "permissionPolicy": "interactive"
   },
diff --git a/packages/paperclip-runner/test/fixtures/copilot-profile-v18-identity.json b/packages/paperclip-runner/test/fixtures/copilot-profile-v18-identity.json
new file mode 100644
index 0000000000..2f7f35c522
--- /dev/null
+++ b/packages/paperclip-runner/test/fixtures/copilot-profile-v18-identity.json
@@ -0,0 +1,43 @@
+{
+  "commandDigest": "sha256:e08c25d07389522abfcda22d081ea25bac370576c3e0ee8ad3fe96c4b653f036",
+  "declaration": {
+    "schema": "paperclip.acpx_profile_declaration.v1",
+    "agent": "copilot",
+    "agentProfileVersion": 18,
+    "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": "2ae36ef1c76b2a80d6a37587fdf5c42bfd940f08656de4fdb10aad60f2582a8b",
+    "semanticDirectDriverSourceSha256": "2b7b7eaadee658312816ecdcbcb311ce491521fedf39e2ecb571036c36ff7b8e",
+    "semanticValidationSourceSha256": "3b0ac8d3f3cb92747d0bcea472ab0419a140e1cfdc43047e2c22542acc2d105f",
+    "semanticNormalizationSourceSha256": "8b628b82e8eacc91cdcc6fdca2210ba4cf282f01e9c6f74e95ff271655b5047e",
+    "semanticCompletionContractSourceSha256": "fa2b0c81cb9a62965839c905db81b930794774d8d557a01bce077dae5830b594",
+    "semanticValidatorsSourceSha256": "4f0219ed00938c5d8bc1b11532ecab9c13230012b23bfd6b7dd6b992e58e98d5",
+    "semanticSchemaBundleSourceSha256": "fe82ac2cbf194d31ac801de6a3cacfb165cb34146c5c26557f283b8c87a5f01e",
+    "semanticSidecarProtocolSourceSha256": "334b67857bd81e9924186890258cb2ad41f92b1ef68ec60fa5c5d9fbb277673c",
+    "semanticSidecarReceiptCommitContract": "correlated-tool-resolve-v1"
+  }
+}