Function isSessionPlanFile

src/utils/permissions/filesystem.ts:255–265

(absolutePath: string)

// Check if file is the plan file for the current session
function isSessionPlanFile(absolutePath: string): boolean {
  // Check if path is a plan file for this session (main or agent-specific)
  // Main plan file: {plansDir}/{planSlug}.md
  // Agent plan file: {plansDir}/{planSlug}-agent-{agentId}.md
  const expectedPrefix = join(getPlansDirectory(), getPlanSlug())
  // SECURITY: Normalize to prevent path traversal bypasses via .. segments
  const normalizedPath = normalize(absolutePath)
  return (
    normalizedPath.startsWith(expectedPrefix) && normalizedPath.endsWith('.md')
  )
}

/**
 * Returns the session memory directory path for the current session with trailing separator.