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Maintainer Decision Framework
Development
Provides a structured decision framework for maintainers to handle issues and pull requests consistently. Defines criteria for actions like closing, deferring, requesting more information, or prioritizing work. Use when you need to make a recommendation on an issue or PR, particularly before closing or deferring.
Systematic Debugging
Development
Provides a structured five-phase debugging workflow: understand, reproduce, isolate, fix, and document. Guides through writing failing tests, binary search isolation, minimal fixes, and regression tests. Most useful when tackling complex or non-obvious bugs that require a systematic approach.
runi Design System
Development
Create React components and pages that follow the runi design system, which conveys vigilance and protection through subtle signal dots and semantic color tokens. Use this skill when building UI for the runi HTTP client to ensure consistent dark mode support, custom component craftsmanship, and a calm, book-like aesthetic. It helps maintain the brand’s philosophy of collapsing uncertainty into truth with actionable insights.
Code Review Expert
Development
Automated code review that analyzes code for quality, security, performance, and maintainability issues. Generates detailed reports with scores and categorized problems, including an HTML report with automatic IDE preview. Helps developers get systematic feedback before merging code changes.
Git Commit Management
Development
Stages and commits changes using standard git protocol. Automatically creates a new branch if currently on main or master, unless CLAUDE.md specifies otherwise. Helps manage commits without leaving the main branch.
Crash Monitoring
Development
Sets up Firebase Crashlytics with custom keys and non-fatal logging, integrates StrictMode and an ANR Watchdog for detecting application not responding issues, and implements structured logging using Timber. Useful for debugging performance problems and preparing monitoring before a release.
Code Review Orchestration Patterns
Development
Orchestrates multi-agent code reviews by fanning out analysis across parallel dimensions (quality, logic, security, performance) then synthesizing prioritized feedback. Helps streamline thorough PR reviews, security audits, and architecture evaluations.
NixOS and Nix Flakes Development
Development
Specialized in NixOS and Nix flake development for multi-repo architectures, airgapped deployments, and K3s infrastructure. Covers flake.nix, NixOS modules, derivations, devShells, overlays, OCI image packaging, and composing multiple flake repositories. Useful when managing declarative infrastructure with NixOS or packaging applications for airgapped environments.
Claude Skill Creator
Development
Create, modify, and manage skills for Claude Code following best practices. Includes guidance on frontmatter, description writing, and file organization. Use when building new skills or updating existing ones to extend Claude's capabilities.
Git Workflow
Development
Provides guidelines for commit messages, branch naming, and pull requests following industry conventions. Helps structure Git workflows with templates and ready-to-use commands.
Checkmate Initialization
Development
Automatically discovers linting and formatting tools in your project and creates a .claude/checkmate.json configuration file. Ideal for initializing code quality checks when setting up a new project or adding a new language.
Qoder Agent (Print Mode)
Development
Delegate coding tasks to the Qoder CLI in non-interactive Print mode. Use this for building new features, code reviews, refactoring, or iterative coding that requires file exploration. It supports subagents, worktrees, and MCP servers, but is not intended for simple one-line fixes or reading code.