Function containsPath

packages/opencode/src/project/instance-context.ts:18–24

(filepath: string, ctx: InstanceContext)

 * Paths within the worktree but outside the working directory should not trigger external_directory permission.
 */
export function containsPath(filepath: string, ctx: InstanceContext): boolean {
  if (FSUtil.contains(ctx.directory, filepath)) return true
  // Non-git projects set worktree to "/" which would match ANY absolute path.
  // Skip worktree check in this case to preserve external_directory permissions.
  if (ctx.worktree === "/") return false
  return FSUtil.contains(ctx.worktree, filepath)
}