code-reviewer
Assists with code review by analyzing code changes for quality, best practices, security, and potential issues. Activates after implementing code features, bug fixes, or refactorings. Provides structured feedback with critical issues, suggestions, and positive highlights.
context-compactor
Analyzes and compacts context-affecting documents (project memory, CLAUDE.md, skill files) to reduce token usage and compaction frequency. Manual trigger only. Always requires user approval before making changes.
doc-maintainer
Maintains high-quality, concise, project-aligned documentation. Creates, updates, and validates README.md, CLAUDE.md, code comments, and other documentation. Activates after implementing features, when documentation is outdated, or when explicitly requested.
git-commit-assistant
Assists with careful Git commits in any repository. Activates when committing changes, checking .gitignore, or generating commit messages. Ensures proper file exclusion (credentials, MCP configs, personal settings), identifies untracked files, and generates Conventional Commits messages with Japanese explanations.
journal-manager
Creates and manages Obsidian work journals. Automatically writes journals after experiments, analyses, and key decisions. Periodically reviews, consolidates, archives, and promotes journal entries to permanent documentation.
knowledge-manager
Manages a structured knowledge base of patterns, troubleshooting guides, best practices, and workflows. Activates when discovering reusable insights, solving technical problems, or establishing new standards. Records knowledge in categorized files for future reference without bloating global CLAUDE.md.
refactoring-assistant
Assists with code refactoring by detecting code smells, suggesting improvements, and providing refactoring patterns. Activates when writing/editing code, explicitly requested refactoring, or when code quality issues are detected. Maintains awareness of core principles while providing detailed patterns and examples.
release-assistant
Automates and ensures reliable release workflows with automatic version bump based on commit history, mandatory lint/build/test execution before release, and safe tag creation and push.
test-executor
Executes tests, analyzes test results, checks test coverage, and provides comprehensive testing status overview. Primarily for Go projects. Activates after implementing/modifying code to verify correctness, or when explicitly requested to assess test suite health.