Browse Skills

fermi.md

15

1 export fermi

2 from "Everplay-Tech/pewpew"

3 Order-of-magnitude estimation. Use f: to trigger Fermi-style decomposition and ballpark analysis. Activates estimation methodology, not just abbreviation.

2026-01-05

grey-haven-deployment-cloudflare.md

15

1 export grey-haven-deployment-cloudflare

2 from "greyhaven-ai/claude-code-config"

3 Deploy TanStack Start applications to Cloudflare Workers/Pages with GitHub Actions, Doppler, Wrangler, database migrations, and rollback procedures. Use when deploying Grey Haven applications.

2026-01-21

grey-haven-testing-strategy.md

15

1 export grey-haven-testing-strategy

2 from "greyhaven-ai/claude-code-config"

3 Grey Haven's comprehensive testing strategy - Vitest unit/integration/e2e for TypeScript, pytest markers for Python, >80% coverage requirement, fixture patterns, and Doppler for test environments. Use when writing tests, setting up test infrastructure, running tests, debugging test failures, improving coverage, configuring CI/CD, or when user mentions 'test', 'testing', 'pytest', 'vitest', 'coverage', 'TDD', 'test-driven development', 'unit test', 'integration test', 'e2e', 'end-to-end', 'test fixtures', 'mocking', 'test setup', 'CI testing'.

2026-01-21

Testing Strategy.md

15

1 export Testing Strategy

2 from "yaleh/meta-cc"

3 Systematic testing methodology for Go projects using TDD, coverage-driven gap closure, fixture patterns, and CLI testing. Use when establishing test strategy from scratch, improving test coverage from 60-75% to 80%+, creating test infrastructure with mocks and fixtures, building CLI test suites, or systematizing ad-hoc testing. Provides 8 documented patterns (table-driven, golden file, fixture, mocking, CLI testing, integration, helper utilities, coverage-driven gap closure), 3 automation tools (coverage analyzer 186x speedup, test generator 200x speedup, methodology guide 7.5x speedup). Validated across 3 project archetypes with 3.1x average speedup, 5.8% adaptation effort, 89% transferability to Python/Rust/TypeScript.

2025-12-13

rails-ai:mailers.md

15

1 export rails-ai:mailers

2 from "zerobearing2/rails-ai"

3 Use when sending emails - ActionMailer with async delivery via SolidQueue, templates, previews, and testing

2026-01-20

Error Recovery.md

15

1 export Error Recovery

2 from "yaleh/meta-cc"

3 Comprehensive error handling methodology with 13-category taxonomy, diagnostic workflows, recovery patterns, and prevention guidelines. Use when error rate >5%, MTTD/MTTR too high, errors recurring, need systematic error prevention, or building error handling infrastructure. Provides error taxonomy (file operations, API calls, data validation, resource management, concurrency, configuration, dependency, network, parsing, state management, authentication, timeout, edge cases - 95.4% coverage), 8 diagnostic workflows, 5 recovery patterns, 8 prevention guidelines, 3 automation tools (file path validation, read-before-write check, file size validation - 23.7% error prevention). Validated with 1,336 historical errors, 85-90% transferability across languages/platforms, 0.79 confidence retrospective validation.

2025-12-13

multi-tool-pipeline.md

15

1 export multi-tool-pipeline

2 from "yoloshii/mcp-code-execution-enhanced"

3 Advanced MCP skill demonstrating multi-tool orchestration with git repository analysis

2026-01-20

using-superpowers.md

15

1 export using-superpowers

2 from "galangryandana/superpowers-for-my-own-workflow"

3 Use when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions

2026-01-05

grey-haven-commit-format.md

15

1 export grey-haven-commit-format

2 from "greyhaven-ai/claude-code-config"

3 Format commit messages according to Grey Haven Studio's actual commitlint configuration (100 char header, lowercase subject, conventional commits). Use when creating git commits or reviewing commit messages.

2026-01-21

grey-haven-tdd-typescript.md

15

1 export grey-haven-tdd-typescript

2 from "greyhaven-ai/claude-code-config"

3 TypeScript/JavaScript Test-Driven Development with Vitest, strict red-green-refactor methodology, React component testing, and comprehensive coverage patterns. Use when implementing TypeScript features with TDD, writing Vitest tests, testing React components, developing with test-first approach, or when user mentions 'TypeScript TDD', 'Vitest', 'React testing', 'JavaScript TDD', 'red-green-refactor', 'TypeScript unit tests', or 'test-driven TypeScript'.

2026-01-21

grey-haven-pr-template.md

15

1 export grey-haven-pr-template

2 from "greyhaven-ai/claude-code-config"

3 Generate pull request descriptions following Grey Haven Studio standards with clear summary, motivation, implementation details, testing strategy, and comprehensive checklist. Use when creating or reviewing pull requests.

2026-01-21

add-dependency.md

15

1 export add-dependency

2 from "AnySoftKeyboard/janus"

3 Add a new third-party dependency to the project following the version catalog and approval workflow.

2026-01-13

video-creator.md

15

1 export video-creator

2 from "outscal/video-generator"

3 Orchestrates end-to-end video generation through sequential workflow steps (audio, direction, assets, design, coding). Activates when user requests video creation from a script, wants to resume video generation, mentions "create video", "generate video", or "video workflow", requests running a specific step (audio, direction, assets, design, coding), asks to "create audio", "generate direction", "create assets", "generate design", or "code video components", or wants to resume a video. Manages workflow state tracking and parallel scene generation.

2026-01-19

history-analyzer.md

15

1 export history-analyzer

2 from "lis186/SourceAtlas"

3 Analyze git history for hotspots, coupling, and knowledge distribution. Use when user asks "who knows this code", "what files change most", "hotspots", "bus factor", "knowledge silos", or needs to understand code evolution.

2026-01-18

grey-haven-linear-workflow.md

15

1 export grey-haven-linear-workflow

2 from "greyhaven-ai/claude-code-config"

3 Grey Haven's Linear issue workflow - creating well-documented issues, proper branch naming from issue IDs, commit message integration, PR linking, and status management. Use when creating issues, starting work, or managing project workflow.

2026-01-21

subagent-prompt-construction.md

15

1 export subagent-prompt-construction

2 from "yaleh/meta-cc"

3 Systematic methodology for constructing compact (<150 lines), expressive, Claude Code-integrated subagent prompts using lambda contracts and symbolic logic. Use when creating new specialized subagents for Claude Code with agent composition, MCP tool integration, or skill references. Validated with phase-planner-executor (V_instance=0.895).

2025-12-13

grey-haven-documentation-architecture.md

15

1 export grey-haven-documentation-architecture

2 from "greyhaven-ai/claude-code-config"

3 Comprehensive documentation systems design including structure, generation, maintenance, and automation. Use when designing documentation systems, automating documentation generation, or managing large-scale documentation projects.

2026-01-21

implementing-a-plan.md

15

1 export implementing-a-plan

2 from "jasonraimondi/dotfiles"

3 Loads plan, reviews critically, executes each batch, and reports for review between batches. Use when implementing a plan from a plan file.

2026-01-16

roman-numerals.md

15

1 export roman-numerals

2 from "indexedlabs/pydantic-ai-gepa"

3 Convert roman numerals to integers.

2026-01-18

executing-plans.md

15

1 export executing-plans

2 from "galangryandana/superpowers-for-my-own-workflow"

3 Use when you have a written implementation plan to execute in a separate session with review checkpoints

2026-01-05

grey-haven-memory-profiling.md

15

1 export grey-haven-memory-profiling

2 from "greyhaven-ai/claude-code-config"

3 Identify memory leaks, inefficient allocations, and optimization opportunities in JavaScript/TypeScript and Python applications. Analyze heap snapshots, allocation patterns, garbage collection, and memory retention. Use when memory grows over time, high memory consumption detected, performance degradation, or when user mentions 'memory leak', 'memory usage', 'heap analysis', 'garbage collection', 'memory profiling', or 'out of memory'.

2026-01-21

grey-haven-prompt-engineering.md

15

1 export grey-haven-prompt-engineering

2 from "greyhaven-ai/claude-code-config"

3 Master 26 documented prompt engineering principles for crafting effective LLM prompts with 400%+ quality improvement. Includes templates, anti-patterns, and quality checklists for technical, learning, creative, and research tasks. Use when writing prompts for LLMs, improving AI response quality, training on prompting, designing agent instructions, or when user mentions 'prompt engineering', 'better prompts', 'LLM quality', 'prompt templates', 'AI prompts', 'prompt principles', or 'prompt optimization'.

2026-01-21

browsing-with-playwright.md

15

1 export browsing-with-playwright

2 from "panaversity/claude-code-skills-lab"

3 Browser automation using Playwright MCP. Navigate websites, fill forms, click elements, take screenshots, and extract data. Use for web browsing, form submission, web scraping, or UI testing. NOT for static content (use curl/wget).

2026-01-05

codex.md

14

1 export codex

2 from "Lucklyric/cc-skill-codex"

3 Invoke Codex CLI for complex coding tasks requiring high reasoning capabilities. This skill should be invoked when users explicitly mention "Codex", request complex implementation challenges, advanced reasoning, GPT-5.1 capabilities, or need high-reasoning model assistance. Automatically triggers on codex-related requests and supports session continuation for iterative development.

2026-01-12