Fix autocomplete popover stability and workspace file suggestion ranking

packages/server/src/utils/directory-suggestions.test.ts

@@ -234,4 +234,33 @@ describe('searchWorkspaceEntries', () => {
     })
     expect(escapedResults.some((entry) => entry.path.includes('escaped-link'))).toBe(false)
   })
+
+  it('ignores node_modules entries so deep workspace files still resolve under scan limits', async () => {
+    mkdirSync(path.join(workspaceDir, 'packages', 'app', 'src', 'app'), { recursive: true })
+    writeFileSync(path.join(workspaceDir, 'packages', 'app', 'src', 'app', '_layout.tsx'), '')
+
+    for (let index = 0; index < 120; index += 1) {
+      mkdirSync(path.join(workspaceDir, 'node_modules', `pkg-${index}`), { recursive: true })
+      writeFileSync(
+        path.join(workspaceDir, 'node_modules', `pkg-${index}`, 'index.js'),
+        'module.exports = {};\n'
+      )
+    }
+    writeFileSync(path.join(workspaceDir, 'node_modules', '_layout.tsx'), '')
+
+    const results = await searchWorkspaceEntries({
+      cwd: workspaceDir,
+      query: '_layout.tsx',
+      limit: 20,
+      includeFiles: true,
+      includeDirectories: true,
+      maxEntriesScanned: 60,
+    })
+
+    expect(results).toContainEqual({
+      path: 'packages/app/src/app/_layout.tsx',
+      kind: 'file',
+    })
+    expect(results.some((entry) => entry.path.startsWith('node_modules/'))).toBe(false)
+  })
 })

packages/server/src/utils/directory-suggestions.ts

@@ -73,6 +73,7 @@ const directoryListCache = new Map<string, DirectoryListCacheEntry>()
 const workspaceEntryListCache = new Map<string, WorkspaceEntryListCacheEntry>()
 const NO_SEGMENT_INDEX = Number.MAX_SAFE_INTEGER
 const NO_MATCH_OFFSET = Number.MAX_SAFE_INTEGER
+const WORKSPACE_IGNORED_DIRECTORY_NAMES = new Set(['node_modules'])
 
 export async function searchHomeDirectories(
   options: SearchHomeDirectoriesOptions
@@ -750,6 +751,9 @@ async function listWorkspaceChildEntries(input: {
     if (isHiddenDirectoryName(dirent.name)) {
       continue
     }
+    if (isIgnoredWorkspaceDirectoryName(dirent.name)) {
+      continue
+    }
 
     const candidatePath = path.join(input.directory, dirent.name)
     const entry = await resolveWorkspaceCandidate({
@@ -839,6 +843,10 @@ function isHiddenDirectoryName(name: string): boolean {
   return name.startsWith('.')
 }
 
+function isIgnoredWorkspaceDirectoryName(name: string): boolean {
+  return WORKSPACE_IGNORED_DIRECTORY_NAMES.has(name)
+}
+
 function setDirectoryListCache(cacheKey: string, entry: DirectoryListCacheEntry): void {
   directoryListCache.set(cacheKey, entry)
   pruneDirectoryListCache()