Essential command-line tools and system utilities.
Coordinate multi-agent code review with specialized perspectives. Use when conducting code reviews, analyzing PRs, evaluating staged changes, or reviewing specific files. Handles security, performance, quality, and test coverage analysis with confidence scoring and actionable recommendations.
Manage git operations for spec-driven development. Use when creating branches for specs/features, generating commits, or creating PRs. Provides consistent git workflow across specify, implement, and refactor commands. Handles branch naming, commit messages, and PR descriptions based on spec context.
Create and validate project constitutions through discovery-based rule generation. Use when creating governance rules, validating code against constitutional rules, or checking constitution compliance during implementation and review.
Systematic code refactoring while preserving all external behavior. Use when identifying code smells, planning refactoring sequences, executing safe structural improvements, or validating behavior preservation. Includes code smell catalog (reference.md) and refactoring execution protocol.
Measurement approaches, profiling tools, optimization patterns, and capacity planning. Use when diagnosing performance issues, establishing baselines, identifying bottlenecks, or planning for scale. Always measure before optimizing.
Apply scientific debugging methodology through conversational investigation. Use when investigating bugs, forming hypotheses, tracing error causes, performing root cause analysis, or systematically diagnosing issues. Includes progressive disclosure patterns, observable actions principle, and user-controlled dialogue flow.
Scaffold CommandKit projects with create-commandkit. Use when generating a new bot, selecting example templates, package manager flags, and reproducible initialization commands.
Convert Docker Compose files to WatchCow format for fnOS by adding the correct `watchcow.*` labels. Use this skill whenever a user wants to deploy a Docker container on fnOS (飞牛OS), convert a compose.yaml to WatchCow format, add WatchCow labels, create an fnOS native app from Docker, or asks about watchcow label configuration. Also trigger when the user mentions "飞牛", "fnOS app", or wants a Docker container to show up in the fnOS App Center.
Create CommandKit plugins for runtime and compiler extension points. Use when implementing RuntimePlugin hooks, CompilerPlugin transforms, template registration, or rolldownPlugins-based compiler customization.
Build queue-based messaging workflows with @commandkit/queue. Use for driver bootstrap, topic/payload contracts, send/receive patterns, and resilient consumer handling.
Send Twitter/X DMs - find user, verify identity, then send message.
Improving visual design in Streamlit apps. Use when polishing apps with icons, badges, spacing, or text styling. Covers Material icons, badge syntax, divider alternatives, and text casing conventions.
Converts Claude Code skills to Gemini CLI extensions and vice versa. Use when the user wants to make a skill cross-platform compatible, port a skill between platforms, or create a universal extension that works on both Claude Code and Gemini CLI.
Documents Streamlit CLI commands for running apps, managing configuration, and diagnostics. Use when starting Streamlit apps, configuring runtime options, or troubleshooting CLI issues.
Covers all Markdown features in Streamlit including GitHub-flavored syntax plus Streamlit extensions like colored text, badges, Material icons, and LaTeX. Use when formatting text, labels, tooltips, or any text-rendering element.
Interactive feature development workflow from idea to implementation. Creates requirements (EARS format), design documents, and implementation task lists. Use when creating feature specs, requirements documents, design documents, or implementation plans. Triggered by "kiro" or references to .kiro/specs/ directory.
Intelligent pattern selection for Fabric CLI. Automatically selects the right pattern from 242+ specialized prompts based on your intent - threat modeling, analysis, summarization, content creation, extraction, and more. USE WHEN processing content, analyzing data, creating summaries, threat modeling, or transforming text.
Write Ruby and Rails code in DHH's distinctive 37signals style. Use this skill when writing Ruby code, Rails applications, creating models, controllers, or any Ruby file. Triggers on Ruby/Rails code generation, refactoring requests, code review, or when the user mentions DHH, 37signals, Basecamp, HEY, or Campfire style. Embodies REST purity, fat models, thin controllers, Current attributes, Hotwire patterns, and the "clarity over cleverness" philosophy.
Create and manage Claude Code skills in HASH repository following Anthropic best practices. Use when creating new skills, modifying skill-rules.json, understanding trigger patterns, working with hooks, debugging skill activation, or implementing progressive disclosure. Covers skill structure, YAML frontmatter, trigger types (keywords, intent patterns), UserPromptSubmit hook, and the 500-line rule. Includes validation and debugging with SKILL_DEBUG. Examples include rust-error-stack, cargo-dependencies, and rust-documentation skills.
Experimental Claude Code skills extending capabilities with new techniques for interactive CLI tools, tmux automation, and advanced workflows.
Write Ruby gems following Andrew Kane's proven patterns and philosophy. Use when creating new Ruby gems, refactoring existing gems, designing gem APIs, or when the user wants clean, minimal, production-ready Ruby library code. Triggers on requests like "create a gem", "write a Ruby library", "design a gem API", or mentions of Andrew Kane's style.
Use when user asks to leverage codex, gpt-5, or gpt-5.1 to implement something (usually implement a plan or feature designed by Claude). Provides non-interactive automation mode for hands-off task execution without approval prompts.
