diff --git a/packages/paperclip-runner/runner/crates/runner-core/src/provider_backend.rs b/packages/paperclip-runner/runner/crates/runner-core/src/provider_backend.rs
index c2bae47aff0..a4611ac8205 100644
--- a/packages/paperclip-runner/runner/crates/runner-core/src/provider_backend.rs
+++ b/packages/paperclip-runner/runner/crates/runner-core/src/provider_backend.rs
@@ -807,6 +807,22 @@ impl CodexCommandExecutor {
             .ok_or_else(|| {
                 DurableRunnerError::invalid("semantic_tool.result has no pending call")
             })?;
+        let result_receipt = result
+            .get("resultReceipt")
+            .filter(|receipt| {
+                receipt.get("schema").and_then(Value::as_str)
+                    == Some("paperclip.prp.semantic_tool.v1")
+                    && receipt.get("phase").and_then(Value::as_str) == Some("result")
+                    && receipt.get("callId").and_then(Value::as_str) == Some(call_id)
+                    && receipt.get("operationId").and_then(Value::as_str)
+                        == Some(pending.operation_id.as_str())
+            })
+            .cloned()
+            .ok_or_else(|| {
+                DurableRunnerError::invalid(
+                    "semantic_tool.result requires its matching canonical resultReceipt",
+                )
+            })?;
         let state = self
             .state
             .as_mut()
@@ -838,10 +854,17 @@ impl CodexCommandExecutor {
         } else {
             false
         };
-        Ok(CommandExecution::result(json!({
-            "status": if delivered { "delivered" } else { "deferred" },
-            "callId": call_id,
-        })))
+        Ok(CommandExecution {
+            result: json!({
+                "status": if delivered { "delivered" } else { "deferred" },
+                "callId": call_id,
+            }),
+            events: vec![(
+                "semantic_tool.result".to_owned(),
+                EventPriority::P0,
+                json!({"semantic_tool": result_receipt}),
+            )],
+        })
     }
 
     fn close_session(&mut self) -> Result<CommandExecution, DurableRunnerError> {
diff --git a/packages/paperclip-runner/runner/crates/runner-core/tests/codex_provider.rs b/packages/paperclip-runner/runner/crates/runner-core/tests/codex_provider.rs
index 60d787844ca..a09c1b2b3d6 100644
--- a/packages/paperclip-runner/runner/crates/runner-core/tests/codex_provider.rs
+++ b/packages/paperclip-runner/runner/crates/runner-core/tests/codex_provider.rs
@@ -254,7 +254,34 @@ fn durable_backend_resumes_one_pending_native_tool_call_with_the_same_identity()
             "semantic_tool.result",
             json!({
                 "callId": "semantic-call-1",
-                "result": {"ok": true, "value": {"task": "NCV-1"}},
+                "result": {
+                    "ok": true,
+                    "value": {"task": "NCV-1"},
+                    "resultReceipt": {
+                        "schema": "paperclip.prp.semantic_tool.v1",
+                        "schemaVersion": 1,
+                        "phase": "result",
+                        "operationId": "report_progress",
+                        "callId": "semantic-call-1",
+                        "correlation": {
+                            "runId": "run-1",
+                            "normalizedSessionId": "session-1",
+                            "turnId": "turn-1",
+                            "itemId": "item-1"
+                        },
+                        "idempotencyKey": "native-resume-proof-1",
+                        "content": {
+                            "digest": format!("sha256:{}", "a".repeat(64)),
+                            "redactionDisposition": "digest_only",
+                            "references": []
+                        },
+                        "outcome": "succeeded",
+                        "code": "ok",
+                        "retryable": false,
+                        "authorizationBoundary": "active_task",
+                        "operationReceiptId": "receipt-1"
+                    }
+                },
                 "isError": false,
             }),
         ))
diff --git a/server/src/services/native-runtime/native-codex-runner.integration.test.ts b/server/src/services/native-runtime/native-codex-runner.integration.test.ts
index 6119139e30e..878d62c8dc0 100644
--- a/server/src/services/native-runtime/native-codex-runner.integration.test.ts
+++ b/server/src/services/native-runtime/native-codex-runner.integration.test.ts
@@ -334,6 +334,10 @@ describeEmbeddedPostgres("native Codex server vertical slice", () => {
     ]);
 
     if (liveCodex) {
+      const usageReports = nativeEvents
+        .filter((event) => event.eventType === "usage.reported")
+        .map((event) => event.payload?.prpEvent)
+        .filter((event): event is Record<string, unknown> => Boolean(event));
       console.log("NATIVE_CODEX_RESUME_PROOF", JSON.stringify({
         appCommit: process.env.PAPERCLIP_LIVE_CODEX_APP_COMMIT ?? null,
         runId,
@@ -349,7 +353,7 @@ describeEmbeddedPostgres("native Codex server vertical slice", () => {
           (event) => event.eventType === "semantic_tool.result",
         ).length,
         controlPlaneEffectCount: progressEffects.length,
-        usage: result.usage ?? null,
+        usageReports,
       }));
       return;
     }