mgrep-code-search
Semantic code search using mgrep for efficient codebase exploration. This skill should be used when searching or exploring codebases with more than 30 non-gitignored files and/or nested directory structures. It provides natural language semantic search that complements traditional grep/ripgrep for f
By intellectronica · 616 installs
npx skills add intellectronica/agent-skills --skill mgrep-code-search
Source repository · Upstream listing
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:
The watch command indexes the repository and maintains synchronisation with file changes. It respects .gitignore and .mgrepignore patterns.
Searching
Search Commands
Basic Search
Search Options
Option Description
m <count Maximum results (default: 10)
c, content Display full result content
a, answer Generate AI powered synthesis of results
s, sync Update index before searching
no rerank Disable relevance optimisation
Examples with Options
Workflow
1. Start watcher (once per session or when files change significantly):
2. Search semantically :
3. Refine as needed using path constraints or options:
Environment Variables
Configure defaults via environment variables:
Variable Purpose
MGREP MAX COUNT Default result limit
MGREP CONTENT Enable content display (1/true)
MGREP ANSWER Enable AI synthesis (1/true)
MGREP SYNC Pre search sync (1/true)
Important Notes
Always use bunx @mixedbread/mgrep to run commands (not npm/npx or direct installation)
Run bunx @mixedbread/mgrep watch before searching to ensure the index is current
mgrep respects .gitignore patterns automatically
Create .mgrepignore for additional exclusions