Config

Gives Claude native access to parse, validate, merge, and convert configuration files across JSON, YAML, TOML, and INI formats. You get deep merge operations for JSON configs, schema validation for docker-compose and GitHub Actions YAML, dependency extraction from Cargo.toml and pyproject.toml, and cross-format diffs that can compare a YAML file against JSON. Reach for this when you're building agents that need to read project configs, compare environment settings, or generate configuration files without writing format-specific parsers. The config_diff tool auto-detects formats and shows nested path changes, which is handy for debugging configuration drift across environments.