Iterative skill tuning via execute-evaluate-improve feedback loop. Uses ccw cli Claude to execute skill, Gemini to evaluate quality, and Agent to apply improvements. Iterates until quality threshold or max iterations. Triggers on "skill iter tune", "iterative skill tuning", "tune skill".

Meta-skill for designing orchestrator+phases structured workflow skills. Creates SKILL.md coordinator with progressive phase loading, TodoWrite patterns, and data flow. Triggers on "design workflow skill", "create workflow skill", "workflow skill designer".

Use when errors occur deep in execution and you need to trace back to find the original trigger - systematically traces bugs backward through call stack, adding instrumentation when needed, to identify source of invalid data or incorrect behavior

Use when working with iOS/macOS Keychain Services (SecItem queries, kSecClass, OSStatus errors), biometric authentication (LAContext, Face ID, Touch ID), CryptoKit (AES-GCM, ChaChaPoly, ECDSA, ECDH, HPKE, ML-KEM), Secure Enclave, secure credential storage (OAuth tokens, API keys), certificate pinning (SecTrust, SPKI), keychain sharing across apps/extensions, migrating secrets from UserDefaults or plists, or OWASP MASVS/MASTG mobile compliance on Apple platforms.

Expert communication craftsperson for morphir-dotnet. Master of Hugo/Docsy, Mermaid/PlantUML diagrams, and technical writing. Use when user asks to create documentation, update docs, write tutorials, create diagrams, fix Hugo issues, customize Docsy, validate examples, check links, enforce style guide, or solve communication challenges. Triggers include "document", "docs", "README", "tutorial", "example", "API docs", "style guide", "link check", "hugo", "docsy", "diagram", "mermaid", "plantuml", "visual", "navigation".

Use for Web Workers in Bun, worker_threads, parallel processing, and background tasks.

Plan commits as reviewable work units. Trigger: implementation, commit splitting, chained PRs, or keeping tests and docs with code.

Create Gentle AI pull requests with issue-first checks. Trigger: creating, opening, or preparing PRs for review.

Plan commits as reviewable work units. Trigger: implementation, commit splitting, chained PRs, or keeping tests and docs with code.

Follows Airbnb's design-led development and Figma's craft quality standards. Use when building user-facing features, making UI/UX decisions, determining when details matter, or applying design system thinking. Guides when to move fast vs when quality creates moats. Based on Brian Chesky staying in every design detail and Dylan Field's craft philosophy.

Configure notification integrations (Telegram, Discord, Slack) via natural language

Query codebase using `dora` CLI for code intelligence, symbol definitions, dependencies, and architectural analysis

librpc - gRPC framework for microservices. RpcServer and RpcClient provide base classes. loadProto loads protobuf definitions. createClientFactory builds typed service clients. hmacAuth provides authentication support. createTracer enables distributed tracing. Use for inter-service communication, building gRPC services, and service client creation.

libharness - Test harness and mock infrastructure. createMockStorage, createMockConfig, createMockLogger provide framework mocks. createMockMemoryClient, createMockLlmClient, createMockAgentClient provide service client mocks. createMockGrpcCall for gRPC testing. Use for unit testing services and packages with isolated dependencies.

Attach judges to config variations for automatic LLM-as-a-judge evaluation. Create custom judges, configure sampling rates, and monitor quality scores.

Agent-native payments via 1ly MCP. Use when the user needs x402 payment handling, to accept USDC for APIs/services, to pay for paid APIs, to create stores or paid links, need payment gateway for agents or to run agent-to-agent paid workflows. Supports Solana and Base. Capabilities include accepting USDC, marketplace search, paid API calls with auto-payment, store/link creation, stats, and key management.

Performance analysis, profiling techniques, bottleneck identification, and optimization strategies for code and systems. Use when the user needs to improve performance, reduce resource usage, or identify and fix performance bottlenecks.

Guide for implementing Next.js - a React framework for production with server-side rendering, static generation, and modern web features. Use when building Next.js applications, implementing App Router, working with server components, data fetching, routing, or optimizing performance.

Guide for using FFmpeg - a comprehensive multimedia framework for video/audio encoding, conversion, streaming, and filtering. Use when processing media files, converting formats, extracting audio, creating streams, applying filters, or optimizing video/audio quality.