Mgrep Code Search

The mgrep-code-search skill enables AI agents to perform advanced code searches across repositories using grep-like patterns. It allows for filtering results by file type, line numbers, and specific context within the codebase.

When to use it

• Locating specific functions or variables across a large monorepo quickly.
• Finding all instances of a deprecated API usage before refactoring.
• Searching for configuration patterns (e.g., environment variables) hidden in multiple files.
• Identifying lines containing specific error codes or log messages within source code.

Key capabilities

• Executes standard grep commands directly against code repositories.
• Supports regex patterns for flexible and complex search queries.
• Filters results by file extensions to narrow down relevant code.
• Returns precise line numbers and surrounding context for matches.

Example prompts

• "Find all occurrences of 'TODO' comments in Python files within the project."
• "Search for any usage of the legacy_auth function and show me the line numbers."
• "List all JavaScript files that import the axios library."

Tips & gotchas

Ensure the AI agent has read access to the target repository before initiating a search, as it cannot scan private or inaccessible codebases. For very large repositories, consider refining your regex patterns to avoid overwhelming the context window with excessive results.