fix: preserve subdirectory CWD in monorepo worktrees (#1283)

When running GSD from a monorepo subdirectory inside a git worktree,
resolveWorktreeRoot() resolved to the worktree root, discarding the
subdirectory where .planning/ lives. All commands failed with
"No ROADMAP.md found" even though the planning structure existed.

Now check if CWD already contains .planning/ before worktree
resolution. If it does, the CWD is already the correct project root
and worktree resolution is skipped.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

get-shit-done/bin/gsd-tools.cjs

@@ -174,11 +174,15 @@ async function main() {
     error(`Invalid --cwd: ${cwd}`);
   }
 
-  // Resolve worktree root: in a linked worktree, .planning/ lives in the main worktree
+  // Resolve worktree root: in a linked worktree, .planning/ lives in the main worktree.
+  // However, in monorepo worktrees where the subdirectory itself owns .planning/,
+  // skip worktree resolution — the CWD is already the correct project root.
   const { resolveWorktreeRoot } = require('./lib/core.cjs');
-  const worktreeRoot = resolveWorktreeRoot(cwd);
-  if (worktreeRoot !== cwd) {
-    cwd = worktreeRoot;
+  if (!fs.existsSync(path.join(cwd, '.planning'))) {
+    const worktreeRoot = resolveWorktreeRoot(cwd);
+    if (worktreeRoot !== cwd) {
+      cwd = worktreeRoot;
+    }
   }
 
   const rawIndex = args.indexOf('--raw');

tests/core.test.cjs

@@ -1039,6 +1039,44 @@ describe('resolveWorktreeRoot', () => {
   });
 });
 
+// ─── monorepo worktree CWD preservation (#1283) ─────────────────────────────
+
+describe('monorepo worktree CWD preservation', () => {
+  const { resolveWorktreeRoot } = require('../get-shit-done/bin/lib/core.cjs');
+
+  test('CWD with .planning/ skips worktree resolution (monorepo subdirectory)', () => {
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gsd-monorepo-wt-'));
+    const subDir = path.join(tmpDir, 'service-alpha');
+    fs.mkdirSync(path.join(subDir, '.planning'), { recursive: true });
+    try {
+      let cwd = subDir;
+      if (!fs.existsSync(path.join(cwd, '.planning'))) {
+        const worktreeRoot = resolveWorktreeRoot(cwd);
+        if (worktreeRoot !== cwd) cwd = worktreeRoot;
+      }
+      assert.strictEqual(cwd, subDir, 'CWD with .planning/ must not be overridden by worktree resolution');
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true });
+    }
+  });
+
+  test('CWD without .planning/ still goes through worktree resolution', () => {
+    const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'gsd-monorepo-wt-'));
+    try {
+      let cwd = tmpDir;
+      let worktreeResolutionCalled = false;
+      if (!fs.existsSync(path.join(cwd, '.planning'))) {
+        worktreeResolutionCalled = true;
+        const worktreeRoot = resolveWorktreeRoot(cwd);
+        if (worktreeRoot !== cwd) cwd = worktreeRoot;
+      }
+      assert.ok(worktreeResolutionCalled, 'worktree resolution must be called when .planning/ is absent');
+    } finally {
+      fs.rmSync(tmpDir, { recursive: true, force: true });
+    }
+  });
+});
+
 // ─── withPlanningLock ────────────────────────────────────────────────────────
 
 describe('withPlanningLock', () => {