fix: address codex review round 3

glob leaked VCS internals when the model rooted the search AT a VCS
directory (path: '.git' or 'sub/.git'): the prune glob !**/.git is
matched against root-prefixed candidate paths, which never end in the
directory name when the walk starts inside it. Pair each VCS exclude
with a contents glob (!**/<name>/**), verified empirically to exclude
relative, nested, and absolute VCS roots while leaving broad searches
untouched. Pinned by the command-construction test and a real-rg
integration case rooting at .git.

packages/fs/tool-fs-search/src/glob.ts

@@ -29,9 +29,12 @@ export const GLOB_MAX_RESULTS = 100
 /**
  * Directory names ripgrep must never descend into for a discovery listing: VCS
  * metadata stores. `--no-ignore --hidden` would otherwise surface them in every
- * broad search. Each is excluded with a negated any-depth `--glob` (see
+ * broad search. Each name is excluded with TWO negated `--glob`s (see
- * {@link buildGlobCommand}), which matches — and prunes — the directory
+ * {@link buildGlobCommand}): an any-depth directory glob that matches — and
- * wherever it appears.
+ * prunes — the directory during traversal, and a contents glob that still
+ * excludes the internals when the search root itself is at or inside the
+ * directory (an explicit `path` of `.git` or `sub/.git`), where the prune glob
+ * alone never matches.
  */
 export const GLOB_VCS_EXCLUDES: readonly string[] = ['.git', '.svn', '.hg', '.bzr', '.jj', '.sl']
 
@@ -81,7 +84,14 @@ export function buildGlobCommand(input: GlobInput): string {
     'rg --files',
     `--glob=${singleQuote(input.pattern)}`,
     '--sort=modified --no-ignore --hidden',
-    ...GLOB_VCS_EXCLUDES.map(name => `--glob=${singleQuote(`!**/${name}`)}`),
+    // Two negated globs per VCS name: the bare form prunes the directory
+    // during traversal; the /** form still excludes the contents when the
+    // search root is AT or INSIDE the directory (where the bare form,
+    // matched against root-prefixed paths, never fires).
+    ...GLOB_VCS_EXCLUDES.flatMap(name => [
+      `--glob=${singleQuote(`!**/${name}`)}`,
+      `--glob=${singleQuote(`!**/${name}/**`)}`,
+    ]),
   ]
   if (input.path !== undefined) parts.push('--', singleQuote(input.path))
   return parts.join(' ')

packages/fs/tool-fs-search/tests/integration.spec.ts

@@ -87,6 +87,12 @@ describe.skipIf(!hasRg)('search tools over the real bash executor + real rg', ()
       expect(text(await call('glob', { pattern: '*.nomatch' }))).toBe('No files found')
     })
 
+    it('excludes VCS internals even when the search root IS the VCS directory', async () => {
+      // The prune glob alone never matches root-prefixed paths when rg is
+      // rooted at .git; the paired contents glob keeps the exclusion airtight.
+      expect(text(await call('glob', { pattern: '*', path: '.git' }))).toBe('No files found')
+    })
+
     it('classifies an invalid glob as SEARCH_INVALID_PATTERN', async () => {
       const result = await call('glob', { pattern: '[' })
       expect(result.isError).toBe(true)

packages/fs/tool-fs-search/tests/tools.spec.ts

@@ -204,11 +204,13 @@ describe('config validation', () => {
 })
 
 describe('command construction (shell-safe)', () => {
-  it('glob: fixed rg --files template with quoted pattern and VCS excludes', () => {
+  it('glob: fixed rg --files template with quoted pattern and paired VCS excludes', () => {
     const command = buildGlobCommand({ pattern: '**/*.ts' })
     expect(command).toBe(
       "rg --files --glob='**/*.ts' --sort=modified --no-ignore --hidden "
-      + "--glob='!**/.git' --glob='!**/.svn' --glob='!**/.hg' --glob='!**/.bzr' --glob='!**/.jj' --glob='!**/.sl'",
+      + "--glob='!**/.git' --glob='!**/.git/**' --glob='!**/.svn' --glob='!**/.svn/**' "
+      + "--glob='!**/.hg' --glob='!**/.hg/**' --glob='!**/.bzr' --glob='!**/.bzr/**' "
+      + "--glob='!**/.jj' --glob='!**/.jj/**' --glob='!**/.sl' --glob='!**/.sl/**'",
     )
   })