How do I install the Grep App skill?

Run npx skillmds@latest add whtsky/grep-app in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Grep App safe to use?

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Which AI agents work with Grep App?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Grep App free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Grep App?

whtsky (@whtsky) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Grep App by whtsky — Agent Skill

Name: Grep App
Author: whtsky

Grep App

Use when searching for code patterns, library usage, API examples, or implementations across public GitHub repositories. Triggers on "search GitHub code for", "how do other projects use X", "find examples of", "grep.app", or needing to discover how open-source projects implement specific functionality.

whtsky 790b2ca 2 files · 7.1 KB Updated Sep 17, 2026

File contents

grep.app Code Search

Search across millions of public GitHub repos via grep.app API. No API key needed.

Script

python scripts/grep_app.py <query> [options]

Options

--lang python|typescript|go|... — Filter by language
--repo owner/name — Filter by repository
--path pattern — Filter by file path
--regexp — Treat query as regex
--page N — Pagination (default: 1)
--limit N — Max results (default: 10)
--json — Structured JSON output

Examples

# Find how projects use a specific API
python scripts/grep_app.py "flyert.com" --lang python

# Search within a specific repo
python scripts/grep_app.py "viewthread" --repo DIYgod/RSSHub

# Regex search
python scripts/grep_app.py "def search.*discuz" --regexp --lang python

# JSON output for programmatic use
python scripts/grep_app.py "openai.chat.completions" --lang python --json

Output

Default: human-readable with repo, path, GitHub URL, and code snippet. --json: structured JSON with total, page, results[] (each with repo, path, url, snippet, matches).

Typical use cases

Find implementations: How do other projects solve X?
API discovery: What APIs does service Y expose? (search for domain/URL patterns)
Library usage: Real-world examples of library Z
Competitive research: Who else builds tools for domain W?

Frequently asked questions