Function detectSessionFileType

src/tools/FileReadTool/FileReadTool.ts:195–225

* Detects if a file path is a session-related file for analytics logging. * Only matches files within the Claude config directory (e.g., ~/.claude). * Returns the type of session file or null if not a session file.

(
  filePath: string,
)

 * Returns the type of session file or null if not a session file.
 */
function detectSessionFileType(
  filePath: string,
): 'session_memory' | 'session_transcript' | null {
  const configDir = getClaudeConfigHomeDir()

  // Only match files within the Claude config directory
  if (!filePath.startsWith(configDir)) {
    return null
  }

  // Normalize path to use forward slashes for consistent matching across platforms
  const normalizedPath = filePath.split(win32.sep).join(posix.sep)

  // Session memory files: ~/.claude/session-memory/*.md (including summary.md)
  if (
    normalizedPath.includes('/session-memory/') &&
    normalizedPath.endsWith('.md')
  ) {
    return 'session_memory'
  }

  // Session JSONL transcript files: ~/.claude/projects/*/*.jsonl
  if (
    normalizedPath.includes('/projects/') &&
    normalizedPath.endsWith('.jsonl')
  ) {
    return 'session_transcript'
  }

  return null
}

const inputSchema = lazySchema(() =>
  z.strictObject({