Amazon Bedrock AgentCore Policy for defining agent boundaries using natural language and Cedar. Deterministic policy enforcement at the Gateway level. Use when setting agent guardrails, access control, tool permissions, or compliance rules.

Convert PRD to structured task list with automatic linking

REQUIRED for editing any skill file. Ensures changes sync to Claude, Codex, and Cursor. Never edit .claude/skills/ files directly - always use this skill.

Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos).

Expert at creating and modifying Claude Code agents (subagents). Auto-invokes when the user wants to create, update, modify, enhance, validate, or standardize agents, or when modifying agent YAML frontmatter fields (especially 'model', 'tools', 'description'), needs help designing agent architecture, or wants to understand agent capabilities. Also auto-invokes proactively when Claude is about to write agent files (*/agents/*.md), create modular agent architectures, or implement tasks that involve creating agent components.

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Browser automation using Playwright MCP. Navigate websites, fill forms, click elements, take screenshots, and extract data. Use when tasks require web browsing, form submission, web scraping, UI testing, or any browser interaction.

Use when implementing complex multi-step tasks, fixing critical bugs, or when quality and completeness matter more than speed - ensures comprehensive implementation without shortcuts through systematic analysis, implementation, and verification phases

Use the M4 Python API to query clinical datasets (MIMIC-IV, eICU) programmatically. Triggers on "M4 API", "query MIMIC with Python", "clinical data analysis", "EHR data", "execute SQL on MIMIC", or when writing code to access clinical databases.

C++ package manager for Windows with installation, environment setup, and package installation commands.

Resolve GitHub issues using isolated worktrees and TDD

Redis-backed SSE stream management with stream registry, heartbeat monitoring, completion store for terminal events, and automatic orphan cleanup via background guardian process.

Create comprehensive test plans for features and changes

Feature planning with 4 phases - Specify requirements, Design architecture, break into granular Tasks, Implement and Validate. Creates atomic tasks that agents can implement without errors. Triggers on "plan feature", "design", "new feature", "implement feature", "create spec".

zig-programming skill

This skill should be used when writing or refactoring TypeScript/JavaScript code. It provides coding patterns and best practices aligned with the user's preferred development style, typescript language usage patterns, and library-specific tips.

Create learning paths for topics. Use when user says "learning path", "how do I learn", "roadmap for", "curriculum", "what should I learn first". Auto-trigger when onboarding or skill development discussed.

Guides agents through launching, playing, sculpting, and capturing performances with the Orthonotone polychoral instrument MVP. Use when generating music, soundscapes, or live demos from this repository.

Best practices when developing in Ruby codebases

This skill should be used when the user asks to "calculate TAM", "determine SAM", "estimate SOM", "size the market", "calculate market opportunity", "what's the total addressable market", or requests market sizing analysis for a startup or business opportunity.