Method handleFiles

src/mcp/tools.ts:4417–4474

* Handle codegraph_files - get project file structure from the index

(args: Record<string, unknown>)

   * Handle codegraph_files - get project file structure from the index
   */
  private async handleFiles(args: Record<string, unknown>): Promise<ToolResult> {
    const cg = this.getCodeGraph(args.projectPath as string | undefined);
    const pathFilter = args.path as string | undefined;
    const pattern = args.pattern as string | undefined;
    const format = (args.format as 'tree' | 'flat' | 'grouped') || 'tree';
    const includeMetadata = args.includeMetadata !== false;
    const maxDepth = args.maxDepth != null ? clamp(args.maxDepth as number, 1, 20) : undefined;

    // Get all files from the index
    const allFiles = cg.getFiles();

    if (allFiles.length === 0) {
      return this.textResult('No files indexed. Run `codegraph index` first.');
    }

    // Filter by path prefix. Stored paths are project-relative POSIX (e.g.
    // "src/foo.ts"), but agents commonly pass project-root variants like "/",
    // ".", "./", "" or Windows-style "src\foo" — and prefixes with leading
    // "/", "./" or "\". Normalize all of those before matching so the agent
    // gets results instead of falling back to Read/Glob (see #426).
    const normalizedFilter = pathFilter
      ? pathFilter
          .replace(/\\/g, '/')
          .replace(/^(?:\.?\/+)+/, '')
          .replace(/^\.$/, '')
          .replace(/\/+$/, '')
      : '';
    let files = normalizedFilter
      ? allFiles.filter(f => f.path === normalizedFilter || f.path.startsWith(normalizedFilter + '/'))
      : allFiles;

    // Filter by glob pattern
    if (pattern) {
      const regex = this.globToRegex(pattern);
      files = files.filter(f => regex.test(f.path));
    }

    if (files.length === 0) {
      return this.textResult(`No files found matching the criteria.`);
    }

    // Format output
    let output: string;
    switch (format) {
      case 'flat':
        output = this.formatFilesFlat(files, includeMetadata);
        break;
      case 'grouped':
        output = this.formatFilesGrouped(files, includeMetadata);
        break;
      case 'tree':
      default:
        output = this.formatFilesTree(files, includeMetadata, maxDepth);
        break;
    }

    return this.textResult(this.truncateOutput(output));
  }