Testing
Unit tests, integration tests, test automation
jetpack-compose
by ahmed3elshaer
Jetpack Compose patterns for declarative UI, state management, theming, animations, and performance optimization.
Dispatching Parallel Agents
by bobmatnyc
Use multiple Claude agents to investigate and fix independent problems concurrently
Root Cause Tracing
by bobmatnyc
Systematically trace bugs backward through call stack to find original trigger
Testing Anti-Patterns
by bobmatnyc
Never test mock behavior. Never add test-only methods to production classes. Understand dependencies before mocking. Language-agnostic principles with TypeScript/Jest and Python/pytest examples.
china-expert
by sandraschi
Comprehensive China expertise debunking sinophobia, explaining phenomenal 40-year progress, technology leadership, realistic challenges, and optimistic future outlook
test-plan-generator
by kanopi
Automatically generate comprehensive QA test plans when user mentions testing requirements, QA needs, or asks what should be tested. Analyzes code changes and features to create structured test scenarios. Invoke when user mentions "test plan", "QA", "what to test", "testing requirements", or "test scenarios".
project-setup
by dhruvbaldawa
Bootstrap new projects with strong typing, linting, formatting, and testing. Supports Python, TypeScript, and other languages with research fallback.
interviewing
by dhruvbaldawa
Systematic questioning to clarify requirements, goals, and constraints. Use when there's ambiguity about what the user wants, hidden complexity needs uncovering, or you need to understand before proceeding. Triggers on unclear requirements, vague goals, or when other skills encounter fundamental ambiguity.
brewcode:spec
by kochetkov-ma
Creates task specification through research and user interaction.
brewcode:plan
by kochetkov-ma
Creates execution plan (PLAN.md) from SPEC or Plan Mode file.
jj-hunk
by laulauland
Programmatic hunk selection for jj (Jujutsu). Use when splitting commits, making partial commits, or selectively squashing changes without interactive UI.
ruthless-refactorer
by galz10
Expertise in Senior Principal Engineering refactoring. Use when you need to eliminate technical debt, remove "AI Slop," simplify complex logic, and ensure DRY code.
code-review
by Geeksfino
Reviews code for quality, best practices, and potential issues. Use when asked to review, audit, or check code for problems.
implement
by acedergren
"Full feature pipeline — pre-flight checks, TDD cycle, scope guard, quality commit. Combines pre-flight + tdd + scope-check + quality-commit into one flow. Use when implementing a feature, adding an endpoint, or building any non-trivial code change."
bugfix
by acedergren
Autonomous bug fix workflow — diagnose from evidence, fix root cause, verify with tests, commit. No hand-holding. Use when given a bug report, failing test, error log, or broken CI.
write-tests
by acedergren
Add test coverage to existing code with correct mock patterns. Use when adding tests to untested modules, writing regression tests for bugs, or user asks to test a specific file. Handles mockReset:true, vi.hoisted(), forwarding pattern, and test app builder utilities.
turborepo
by acedergren
Turborepo monorepo architecture decisions and anti-patterns. Use when: (1) choosing between monorepo vs polyrepo, (2) deciding when to split packages, (3) debugging cache misses, (4) setting package boundaries, (5) avoiding circular dependencies. NOT for CLI syntax (see turbo --help). Focuses on architectural decisions that prevent monorepo sprawl and maintenance nightmares. Triggers: turborepo, monorepo, package boundaries, when to split packages, turbo cache miss, circular dependency, workspace organization, task dependencies.
tdd
by acedergren
"Test-driven development workflow — write failing tests first, implement minimum code, run full suite, commit. Use when implementing features, fixing bugs, or adding test coverage. Includes mock bootstrap phase for projects with mockReset:true."
prod-readiness
by acedergren
Autonomous production readiness review pipeline — spawns 5 parallel specialist agents (security, testing, performance, observability, code quality) and synthesizes findings into a prioritized remediation plan. Use before major releases or milestone completions.
phase-kickoff
by acedergren
"Scaffold a new development phase with branch, test shells, and roadmap entry. Use when starting a new feature phase or sprint to set up the development environment consistently."
small-cap-growth-identifier
by Geeksfino
Identify high-growth small-cap stocks (market cap under $2B) with strong fundamentals, insider ownership, and low institutional coverage — the kind of overlooked opportunities that larger funds miss. Use when the user asks to find small-cap growth stocks, discover under-the-radar companies, screen for founder-led small caps, identify emerging growth companies, find low-institutional-ownership stocks, or seek multi-bagger candidates with strong fundamentals.
esg-screener
by Geeksfino
Screen and analyze stocks through an ESG (Environmental, Social, Governance) lens, evaluating sustainability practices, controversy exposure, and responsible investing criteria. Use when the user asks about ESG investing, sustainable investing, socially responsible investing (SRI), impact investing, green stocks, carbon footprint analysis, governance quality assessment, controversy screening, exclusion lists, or ESG scoring of companies or portfolios.
dividend-aristocrat-calculator
by Geeksfino
Analyze Dividend Aristocrats (25+ years of consecutive dividend increases) for income reliability and total return. Use when the user asks to evaluate dividend aristocrats, calculate dividend reinvestment returns, assess dividend sustainability, compare income stocks, build a dividend growth portfolio, analyze payout ratios and free cash flow coverage, or rank stocks by dividend reliability and long-term total return.
sentiment-reality-gap
by Geeksfino
Identify stocks where market sentiment is significantly more negative than fundamentals warrant — the gap between narrative and reality. Use when the user asks to find contrarian opportunities, stocks with sentiment-fundamental misalignment, oversold but fundamentally strong companies, stocks punished by negative narratives, or wants to analyze whether market fear is justified for specific stocks or sectors.