grep_tool

Search files recursively for text patterns using standard grep utilities.

Updated Jun 22, 2026
One-click install
npx skills add https://github.com/alangeb/tau --skill grep-tool
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: grep_tool
Source: https://github.com/alangeb/tau/tree/main/src/skills/grep_tool
Command: npx skills add https://github.com/alangeb/tau --skill grep-tool

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill solves the challenge of locating specific code patterns, strings, or configuration errors across large, complex codebases where manual searching is inefficient.

Core Features & Use Cases

  • Advanced Pattern Matching: Perform recursive searches using regex, whole-word matching, and multi-pattern logic.
  • Noise Reduction: Easily exclude directories like venv, .git, or node_modules to focus on relevant source code.
  • Use Case: Quickly identify all instances of a specific function call across a multi-module Python project while ignoring binary files and build artifacts.

Quick Start

Use the grep tool to recursively search for the string database_connection in all python files while excluding the venv directory.

Frequently Asked Questions about grep_tool

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I perform a recursive search to find a specific string across multiple code files?

Recursive search across file systems is performed using standard grep utilities to locate specific code patterns and strings. It facilitates code analysis by providing structured output for pattern matching while filtering directories like venv or .git.

What is the best way to exclude directories like node_modules or venv during a codebase pattern search?

Excluding directories like node_modules, venv, and .git during a pattern search reduces noise and focuses results on relevant source code. This noise reduction capability is built into the recursive text searching process to streamline code analysis.

Can I use regex for whole-word matching and multi-pattern logic in cross-file reference tracking?

Regex, whole-word matching, and multi-pattern logic are fully supported for cross-file reference tracking. Advanced pattern matching capabilities allow you to investigate bugs and identify specific function calls across complex software development environments.

Does recursive grep searching work for identifying function calls in a multi-module Python project?

Recursive grep searching works effectively for identifying all instances of a specific function call across a multi-module Python project. It leverages native shell capabilities to filter files and provide structured output for pattern matching.

What are the limitations of using standard grep utilities for code analysis in large codebases?

Limitations of standard grep utilities include encountering inefficiency when manually searching large, complex codebases without proper directory filtering. The tool solves this by using native shell capabilities for high-speed text searching, though binary files and build artifacts may still cause noise.