diff --git a/plugins/codex/scripts/stop-review-gate-hook.mjs b/plugins/codex/scripts/stop-review-gate-hook.mjs
index 2346bdcf4..7460f6a8d 100644
--- a/plugins/codex/scripts/stop-review-gate-hook.mjs
+++ b/plugins/codex/scripts/stop-review-gate-hook.mjs
@@ -17,6 +17,8 @@ const STOP_REVIEW_TIMEOUT_MS = 15 * 60 * 1000;
 const SCRIPT_DIR = path.dirname(fileURLToPath(import.meta.url));
 const ROOT_DIR = path.resolve(SCRIPT_DIR, "..");
 const STOP_REVIEW_TASK_MARKER = "Run a stop-gate review of the previous Claude turn.";
+const STOP_GATE_MANUAL_OR_BYPASS_HINT =
+  "Run /codex:review --wait manually or bypass the gate by running /codex:setup --disable-review-gate.";
 
 function readHookInput() {
   const raw = fs.readFileSync(0, "utf8").trim();
@@ -66,13 +68,12 @@ function buildSetupNote(cwd) {
   return `Codex is not set up for the review gate.${detail} Run /codex:setup.`;
 }
 
-function parseStopReviewOutput(rawOutput) {
+export function parseStopReviewOutput(rawOutput) {
   const text = String(rawOutput ?? "").trim();
   if (!text) {
     return {
       ok: false,
-      reason:
-        "The stop-time Codex review task returned no final output. Run /codex:review --wait manually or bypass the gate."
+      reason: `The stop-time Codex review task returned no final output. ${STOP_GATE_MANUAL_OR_BYPASS_HINT}`
     };
   }
 
@@ -90,8 +91,7 @@ function parseStopReviewOutput(rawOutput) {
 
   return {
     ok: false,
-    reason:
-      "The stop-time Codex review task returned an unexpected answer. Run /codex:review --wait manually or bypass the gate."
+    reason: `The stop-time Codex review task returned an unexpected answer. ${STOP_GATE_MANUAL_OR_BYPASS_HINT}`
   };
 }
 
@@ -112,8 +112,7 @@ function runStopReview(cwd, input = {}) {
   if (result.error?.code === "ETIMEDOUT") {
     return {
       ok: false,
-      reason:
-        "The stop-time Codex review task timed out after 15 minutes. Run /codex:review --wait manually or bypass the gate."
+      reason: `The stop-time Codex review task timed out after 15 minutes. ${STOP_GATE_MANUAL_OR_BYPASS_HINT}`
     };
   }
 
@@ -122,8 +121,8 @@ function runStopReview(cwd, input = {}) {
     return {
       ok: false,
       reason: detail
-        ? `The stop-time Codex review task failed: ${detail}`
-        : "The stop-time Codex review task failed. Run /codex:review --wait manually or bypass the gate."
+        ? `The stop-time Codex review task failed: ${detail} ${STOP_GATE_MANUAL_OR_BYPASS_HINT}`
+        : `The stop-time Codex review task failed. ${STOP_GATE_MANUAL_OR_BYPASS_HINT}`
     };
   }
 
@@ -133,8 +132,7 @@ function runStopReview(cwd, input = {}) {
   } catch {
     return {
       ok: false,
-      reason:
-        "The stop-time Codex review task returned invalid JSON. Run /codex:review --wait manually or bypass the gate."
+      reason: `The stop-time Codex review task returned invalid JSON. ${STOP_GATE_MANUAL_OR_BYPASS_HINT}`
     };
   }
 }
@@ -175,10 +173,34 @@ function main() {
   logNote(runningTaskNote);
 }
 
-try {
-  main();
-} catch (error) {
-  const message = error instanceof Error ? error.message : String(error);
-  process.stderr.write(`${message}\n`);
-  process.exitCode = 1;
+export function resolveCanonicalPath(filePath) {
+  try {
+    return fs.realpathSync.native(filePath);
+  } catch {
+    try {
+      return fs.realpathSync(filePath);
+    } catch {
+      return path.resolve(filePath);
+    }
+  }
+}
+
+export function isCliEntry(argv = process.argv, moduleUrl = import.meta.url) {
+  const invoked = argv[1];
+  if (!invoked) {
+    return false;
+  }
+  return (
+    resolveCanonicalPath(invoked) === resolveCanonicalPath(fileURLToPath(moduleUrl))
+  );
+}
+
+if (isCliEntry()) {
+  try {
+    main();
+  } catch (error) {
+    const message = error instanceof Error ? error.message : String(error);
+    process.stderr.write(`${message}\n`);
+    process.exitCode = 1;
+  }
 }
diff --git a/tests/stop-review-gate-hook.test.mjs b/tests/stop-review-gate-hook.test.mjs
new file mode 100644
index 000000000..11adee443
--- /dev/null
+++ b/tests/stop-review-gate-hook.test.mjs
@@ -0,0 +1,89 @@
+import assert from "node:assert/strict";
+import fs from "node:fs";
+import os from "node:os";
+import path from "node:path";
+import test from "node:test";
+import { fileURLToPath, pathToFileURL } from "node:url";
+
+import {
+  isCliEntry,
+  parseStopReviewOutput,
+  resolveCanonicalPath
+} from "../plugins/codex/scripts/stop-review-gate-hook.mjs";
+
+const HOOK_MODULE_URL = new URL(
+  "../plugins/codex/scripts/stop-review-gate-hook.mjs",
+  import.meta.url
+).href;
+const HOOK_MODULE_PATH = fileURLToPath(HOOK_MODULE_URL);
+
+const ESCAPE_COMMAND = "/codex:setup --disable-review-gate";
+
+test("resolveCanonicalPath follows symlinks to the same target", () => {
+  const linkDir = fs.mkdtempSync(path.join(os.tmpdir(), "stop-hook-canonical-"));
+  const linkPath = path.join(linkDir, "stop-review-gate-hook.mjs");
+
+  try {
+    fs.symlinkSync(HOOK_MODULE_PATH, linkPath);
+    assert.equal(resolveCanonicalPath(linkPath), resolveCanonicalPath(HOOK_MODULE_PATH));
+  } catch (error) {
+    if (error?.code === "EPERM" || error?.code === "ENOENT") {
+      return;
+    }
+    throw error;
+  } finally {
+    fs.rmSync(linkDir, { recursive: true, force: true });
+  }
+});
+
+test("isCliEntry treats a symlinked argv path as the hook entry", () => {
+  const linkDir = fs.mkdtempSync(path.join(os.tmpdir(), "stop-hook-entry-"));
+  const linkPath = path.join(linkDir, "stop-review-gate-hook.mjs");
+
+  try {
+    fs.symlinkSync(HOOK_MODULE_PATH, linkPath);
+    assert.equal(isCliEntry(["node", linkPath], HOOK_MODULE_URL), true);
+    assert.equal(isCliEntry(["node", HOOK_MODULE_PATH], HOOK_MODULE_URL), true);
+    assert.equal(isCliEntry(["node", pathToFileURL(linkPath).href], HOOK_MODULE_URL), false);
+  } catch (error) {
+    if (error?.code === "EPERM" || error?.code === "ENOENT") {
+      return;
+    }
+    throw error;
+  } finally {
+    fs.rmSync(linkDir, { recursive: true, force: true });
+  }
+});
+
+test("isCliEntry returns false for imports and unrelated scripts", () => {
+  assert.equal(isCliEntry(["node"], HOOK_MODULE_URL), false);
+  assert.equal(
+    isCliEntry(["node", fileURLToPath(import.meta.url)], HOOK_MODULE_URL),
+    false
+  );
+});
+
+test("parseStopReviewOutput includes escape command for empty output", () => {
+  const result = parseStopReviewOutput("");
+  assert.equal(result.ok, false);
+  assert.match(result.reason, new RegExp(ESCAPE_COMMAND.replace("/", "\\/")));
+});
+
+test("parseStopReviewOutput includes escape command for unexpected answer", () => {
+  const result = parseStopReviewOutput("maybe later");
+  assert.equal(result.ok, false);
+  assert.match(result.reason, new RegExp(ESCAPE_COMMAND.replace("/", "\\/")));
+});
+
+test("parseStopReviewOutput allows clean stop review", () => {
+  const result = parseStopReviewOutput("ALLOW: No blocking issues found.");
+  assert.equal(result.ok, true);
+  assert.equal(result.reason, null);
+});
+
+test("parseStopReviewOutput omits escape command for Codex BLOCK findings", () => {
+  const result = parseStopReviewOutput("BLOCK: Missing empty-state guard");
+  assert.equal(result.ok, false);
+  assert.match(result.reason, /still need fixes/i);
+  assert.doesNotMatch(result.reason, new RegExp(ESCAPE_COMMAND.replace("/", "\\/")));
+});