Function processMdRules

src/utils/claudemd.ts:697–788

({
  rulesDir,
  type,
  processedPaths,
  includeExternal,
  conditionalRule,
  visitedDirs = new Set(),
}: {
  rulesDir: string
  type: MemoryType
  processedPaths: Set<string>
  includeExternal: boolean
  conditionalRule: boolean
  visitedDirs?: Set<string>
})

 * @returns Array of MemoryFileInfo objects
 */
export async function processMdRules({
  rulesDir,
  type,
  processedPaths,
  includeExternal,
  conditionalRule,
  visitedDirs = new Set(),
}: {
  rulesDir: string
  type: MemoryType
  processedPaths: Set<string>
  includeExternal: boolean
  conditionalRule: boolean
  visitedDirs?: Set<string>
}): Promise<MemoryFileInfo[]> {
  if (visitedDirs.has(rulesDir)) {
    return []
  }

  try {
    const fs = getFsImplementation()

    const { resolvedPath: resolvedRulesDir, isSymlink } = safeResolvePath(
      fs,
      rulesDir,
    )

    visitedDirs.add(rulesDir)
    if (isSymlink) {
      visitedDirs.add(resolvedRulesDir)
    }

    const result: MemoryFileInfo[] = []
    let entries: import('fs').Dirent[]
    try {
      entries = await fs.readdir(resolvedRulesDir)
    } catch (e: unknown) {
      const code = getErrnoCode(e)
      if (code === 'ENOENT' || code === 'EACCES' || code === 'ENOTDIR') {
        return []
      }
      throw e
    }

    for (const entry of entries) {
      const entryPath = join(rulesDir, entry.name)
      const { resolvedPath: resolvedEntryPath, isSymlink } = safeResolvePath(
        fs,
        entryPath,
      )

      // Use Dirent methods for non-symlinks to avoid extra stat calls.
      // For symlinks, we need stat to determine what the target is.
      const stats = isSymlink ? await fs.stat(resolvedEntryPath) : null
      const isDirectory = stats ? stats.isDirectory() : entry.isDirectory()
      const isFile = stats ? stats.isFile() : entry.isFile()

      if (isDirectory) {