diff --git a/docs/openclawcode/run-json-contract.md b/docs/openclawcode/run-json-contract.md
index 959c604f0f..a710c78c94 100644
--- a/docs/openclawcode/run-json-contract.md
+++ b/docs/openclawcode/run-json-contract.md
@@ -309,7 +309,8 @@ those nested objects.
 - boolean summary fields such as `verificationHasFindings` default to `false`
   when the corresponding section is absent
 - derived boolean fields such as `failureDiagnosticBootstrapWarningShown`
-  default to `false` when the nested diagnostic signal is absent
+  default to `false` when the nested diagnostic signal is absent and otherwise
+  mirror the recorded boolean signal
 - string or timestamp fields use `null` when the underlying value is absent
 - `failureDiagnostics` uses `null` when no structured workflow failure metadata
   was recorded for the run
diff --git a/src/commands/openclawcode.test.ts b/src/commands/openclawcode.test.ts
index 2e149cb240..9770d8541b 100644
--- a/src/commands/openclawcode.test.ts
+++ b/src/commands/openclawcode.test.ts
@@ -1839,6 +1839,22 @@ describe("openclawCodeRunCommand", () => {
     expect(payload.failureDiagnosticUsageTotal).toBe(0);
   });
 
+  it("prints failureDiagnosticBootstrapWarningShown as false when diagnostics omitted bootstrap warnings", async () => {
+    mocks.runIssueWorkflow.mockResolvedValue(
+      createRun({
+        stage: "failed",
+        failureDiagnostics: {
+          summary: "HTTP 400: Internal server error",
+        },
+      }),
+    );
+
+    await openclawCodeRunCommand({ issue: "2", repoRoot: "/repo", json: true }, runtime);
+
+    const payload = JSON.parse(runtime.log.mock.calls[0]?.[0] ?? "null");
+    expect(payload.failureDiagnosticBootstrapWarningShown).toBe(false);
+  });
+
   it("prints failureDiagnosticBootstrapWarningShown as true when diagnostics flagged bootstrap warnings", async () => {
     mocks.runIssueWorkflow.mockResolvedValue(
       createRun({
diff --git a/src/commands/openclawcode.ts b/src/commands/openclawcode.ts
index 1bc99ff432..ed08f84f4f 100644
--- a/src/commands/openclawcode.ts
+++ b/src/commands/openclawcode.ts
@@ -1362,7 +1362,10 @@ function toWorkflowRunJson(run: WorkflowRun) {
     failureDiagnosticSkillCount: run.failureDiagnostics?.skillCount ?? null,
     failureDiagnosticInjectedWorkspaceFileCount:
       run.failureDiagnostics?.injectedWorkspaceFileCount ?? null,
-    failureDiagnosticBootstrapWarningShown: run.failureDiagnostics?.bootstrapWarningShown ?? false,
+    failureDiagnosticBootstrapWarningShown:
+      run.failureDiagnostics != null
+        ? Boolean(run.failureDiagnostics.bootstrapWarningShown)
+        : false,
     failureDiagnosticToolCount: run.failureDiagnostics?.toolCount ?? null,
     failureDiagnosticUsageTotal: run.failureDiagnostics?.lastCallUsageTotal ?? null,
     blueprintContext: run.blueprintContext ?? null,