diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index c22c2fb..68f474d 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -26,9 +26,21 @@ jobs:
   claude:
     if: |
       github.event_name == 'workflow_dispatch' ||
-      (github.event_name == 'issue_comment' && contains(github.event.comment.body, '@claude')) ||
-      (github.event_name == 'pull_request_review_comment' && contains(github.event.comment.body, '@claude')) ||
-      (github.event_name == 'pull_request_review' && contains(github.event.review.body, '@claude'))
+      (
+        github.event_name == 'issue_comment' &&
+        contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association) &&
+        contains(github.event.comment.body, '@claude')
+      ) ||
+      (
+        github.event_name == 'pull_request_review_comment' &&
+        contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association) &&
+        contains(github.event.comment.body, '@claude')
+      ) ||
+      (
+        github.event_name == 'pull_request_review' &&
+        contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.review.author_association) &&
+        contains(github.event.review.body, '@claude')
+      )
     runs-on:
       - self-hosted
       - linux
diff --git a/test/workflow.test.ts b/test/workflow.test.ts
index f3645fa..a2cd75e 100644
--- a/test/workflow.test.ts
+++ b/test/workflow.test.ts
@@ -275,6 +275,31 @@ describe("CI workflow", () => {
     expect(workflow.jobs["ci-gate"]["runs-on"]).toEqual(shellSafePublicRunner);
   });
 
+  test("restricts Claude comment triggers to trusted repository actors", () => {
+    const workflow = YAML.parse(
+      fs.readFileSync(path.resolve(".github/workflows/claude.yml"), "utf8")
+    ) as {
+      jobs: Record<string, Record<string, unknown>>;
+    };
+
+    const claudeJob = workflow.jobs.claude;
+    const condition = String(claudeJob.if);
+
+    expect(claudeJob["runs-on"]).toEqual(shellSafePublicRunner);
+    expect(condition).toContain("github.event_name == 'workflow_dispatch'");
+    expect(condition).toContain(
+      "contains(fromJSON('[\"OWNER\",\"MEMBER\",\"COLLABORATOR\"]'), github.event.comment.author_association)"
+    );
+    expect(condition).toContain(
+      "contains(fromJSON('[\"OWNER\",\"MEMBER\",\"COLLABORATOR\"]'), github.event.review.author_association)"
+    );
+    expect(condition).toContain("contains(github.event.comment.body, '@claude')");
+    expect(condition).toContain("contains(github.event.review.body, '@claude')");
+    expect(condition).not.toContain("FIRST_TIME_CONTRIBUTOR");
+    expect(condition).not.toContain("CONTRIBUTOR");
+    expect(condition).not.toContain("NONE");
+  });
+
   test("renders the Linux Docker contract on shell-safe self-hosted Linux", () => {
     const workflow = YAML.parse(
       fs.readFileSync(path.resolve(".github/workflows/ci.yml"), "utf8")