Fix working-tree review crash on untracked directories (#166)

* fix: skip untracked directories in review context

* fix: skip broken untracked symlinks in reviews

plugins/codex/scripts/lib/git.mjs

@@ -135,12 +135,25 @@ function formatSection(title, body) {
 
 function formatUntrackedFile(cwd, relativePath) {
   const absolutePath = path.join(cwd, relativePath);
-  const stat = fs.statSync(absolutePath);
+  let stat;
+  try {
+    stat = fs.statSync(absolutePath);
+  } catch {
+    return `### ${relativePath}\n(skipped: broken symlink or unreadable file)`;
+  }
+  if (stat.isDirectory()) {
+    return `### ${relativePath}\n(skipped: directory)`;
+  }
   if (stat.size > MAX_UNTRACKED_BYTES) {
     return `### ${relativePath}\n(skipped: ${stat.size} bytes exceeds ${MAX_UNTRACKED_BYTES} byte limit)`;
   }
 
-  const buffer = fs.readFileSync(absolutePath);
+  let buffer;
+  try {
+    buffer = fs.readFileSync(absolutePath);
+  } catch {
+    return `### ${relativePath}\n(skipped: broken symlink or unreadable file)`;
+  }
   if (!isProbablyText(buffer)) {
     return `### ${relativePath}\n(skipped: binary file)`;
   }

tests/git.test.mjs

@@ -68,3 +68,36 @@ test("resolveReviewTarget requires an explicit base when no default branch can b
     /Unable to detect the repository default branch\. Pass --base <ref> or use --scope working-tree\./
   );
 });
+
+test("collectReviewContext skips untracked directories in working tree review", () => {
+  const cwd = makeTempDir();
+  initGitRepo(cwd);
+  fs.writeFileSync(path.join(cwd, "app.js"), "console.log('v1');\n");
+  run("git", ["add", "app.js"], { cwd });
+  run("git", ["commit", "-m", "init"], { cwd });
+
+  const nestedRepoDir = path.join(cwd, ".claude", "worktrees", "agent-test");
+  fs.mkdirSync(nestedRepoDir, { recursive: true });
+  initGitRepo(nestedRepoDir);
+
+  const target = resolveReviewTarget(cwd, { scope: "working-tree" });
+  const context = collectReviewContext(cwd, target);
+
+  assert.match(context.content, /### \.claude\/worktrees\/agent-test\/\n\(skipped: directory\)/);
+});
+
+test("collectReviewContext skips broken untracked symlinks instead of crashing", () => {
+  const cwd = makeTempDir();
+  initGitRepo(cwd);
+  fs.writeFileSync(path.join(cwd, "app.js"), "console.log('v1');\n");
+  run("git", ["add", "app.js"], { cwd });
+  run("git", ["commit", "-m", "init"], { cwd });
+  fs.symlinkSync("missing-target", path.join(cwd, "broken-link"));
+
+  const target = resolveReviewTarget(cwd, {});
+  const context = collectReviewContext(cwd, target);
+
+  assert.equal(target.mode, "working-tree");
+  assert.match(context.content, /### broken-link/);
+  assert.match(context.content, /skipped: broken symlink or unreadable file/i);
+});