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Mgrep Code Search

intellectronica/agent-skills

This is semantic search for codebases, basically letting you ask "where is authentication configured?" instead of grepping for exact strings. It's built on mgrep and makes sense once you hit 30+ files or nested directories where you're hunting for concepts rather than known function names. You run a watcher to index the repo, then query in natural language. It has options for AI synthesis of results and respects gitignore by default. The honest take is this bridges the gap between "I know what this feature does" and "where the hell is it implemented," which is most of your time in unfamiliar code. Works via bunx, so no installation needed.

skills.sh installs: 627
GitHub stars: 301
last updated: Aug 21, 2026

Install

$ npx -y skills add intellectronica/agent-skills --skill mgrep-code-search --agent claude-code

Installs into .claude/skills of the current project.

Files

mgrep Code Search

Overview

mgrep is a semantic search tool that enables natural language queries across code, text, PDFs, and images. It is particularly effective for exploring larger or complex codebases where traditional pattern matching falls short.

When to Use This Skill

Use mgrep when:

The codebase contains more than 30 non-gitignored files
There are nested directory structures
Searching for concepts, features, or intent rather than exact strings
Exploring an unfamiliar codebase
Need to understand "where" or "how" something is implemented

Use traditional grep/ripgrep when:

Searching for exact patterns or symbols
Regex-based refactoring
Tracing specific function or variable names

Quick Start

Indexing

Before searching, start the watcher to index the repository:

bunx @mixedbread/mgrep watch

The watch command indexes the repository and maintains synchronisation with file changes. It respects .gitignore and .mgrepignore patterns.

Searching

bunx @mixedbread/mgrep "your natural language query" [path]

Search Commands

Basic Search

SKILL.md on GitHub

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Details

Repository: github.com/intellectronica/agent-skills
Category: AI & Agent Building
First seen: Jun 3, 2026

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