Function call

src/tools/GrepTool/GrepTool.ts:310–576

(
    {
      pattern,
      path,
      glob,
      type,
      output_mode = 'files_with_matches',
      '-B': context_before,
      '-A': context_after,
      '-C': context_c,
      context,
      '-n': show_line_numbers = true,
      '-i': case_insensitive = false,
      head_limit,
      offset = 0,
      multiline = false,
    },
    { abortController, getAppState },
  )

    }
  },
  async call(
    {
      pattern,
      path,
      glob,
      type,
      output_mode = 'files_with_matches',
      '-B': context_before,
      '-A': context_after,
      '-C': context_c,
      context,
      '-n': show_line_numbers = true,
      '-i': case_insensitive = false,
      head_limit,
      offset = 0,
      multiline = false,
    },
    { abortController, getAppState },
  ) {
    const absolutePath = path ? expandPath(path) : getCwd()
    const args = ['--hidden']

    // Exclude VCS directories to avoid noise from version control metadata
    for (const dir of VCS_DIRECTORIES_TO_EXCLUDE) {
      args.push('--glob', `!${dir}`)
    }

    // Limit line length to prevent base64/minified content from cluttering output
    args.push('--max-columns', '500')

    // Only apply multiline flags when explicitly requested
    if (multiline) {
      args.push('-U', '--multiline-dotall')
    }

    // Add optional flags
    if (case_insensitive) {
      args.push('-i')
    }

    // Add output mode flags
    if (output_mode === 'files_with_matches') {
      args.push('-l')
    } else if (output_mode === 'count') {
      args.push('-c')
    }

    // Add line numbers if requested
    if (show_line_numbers && output_mode === 'content') {
      args.push('-n')
    }

    // Add context flags (-C/context takes precedence over context_before/context_after)
    if (output_mode === 'content') {
      if (context !== undefined) {
        args.push('-C', context.toString())
      } else if (context_c !== undefined) {
        args.push('-C', context_c.toString())