Loading...
Loading...
Found 2,347 Skills
Apply the "How I Made Your Machine" coding style guide to implementation, refactoring, and code review tasks across TypeScript, Rust, and Python. Use when a request asks for this style guide, when improving maintainability and type safety, when modeling domain concepts with explicit variants/types, or when enforcing behavior-first testing.
Write and maintain tests with Vitest v4 dual configuration, mock utilities, and Zustand store testing patterns.
Design API testing plans and test cases covering REST/GraphQL/gRPC interfaces. Default output is Markdown, and Excel/CSV/JSON output can be requested. Use for API testing or api-testing.
A/B testing infrastructure, feature flags (LaunchDarkly, Unleash), experimentation platforms, PLG patterns, and funnel optimization. Use when building experimentation systems, implementing feature toggles, or optimizing conversion funnels.
Deep persona design for Agentforce agents with 50-point scoring. TRIGGER when: user designs agent personas, defines agent personality/identity, creates persona documents, encodes persona into Agent Builder fields, or asks about agent tone/voice/register. DO NOT TRIGGER when: building agent metadata (use sf-ai-agentforce), testing agents (use sf-ai-agentforce-testing), or Agent Script DSL (use sf-ai-agentscript).
Review the current Pull Request that has been checked out locally with structured feedback on code quality, issues, testing, and suggestions. Use when you need a comprehensive code review of a PR branch.
Implement, review, or improve in-app purchases and subscriptions using StoreKit 2. Use when building paywalls with SubscriptionStoreView or ProductView, processing transactions with Product and Transaction APIs, verifying entitlements, handling purchase flows (consumable, non-consumable, auto-renewable), implementing offer codes or promotional/win-back/introductory offers, managing subscription status and renewal state, setting up StoreKit testing with configuration files, or integrating Family Sharing, Ask to Buy, refund handling, and billing retry logic.
Strict Red-Green-Refactor workflow for robust, self-documenting code. Discovers project test setup via codebase exploration before assuming frameworks. Use when: (1) Implementing new features with test-first approach, (2) Fixing bugs with reproduction tests, (3) Refactoring existing code with test safety net, (4) Adding tests to legacy code, (5) Ensuring code quality before committing, (6) When tests exist but workflow unclear, or (7) When establishing testing practices in a new project. Triggers: test, tdd, red-green-refactor, failing test, test first, test-driven, write tests, add tests, run tests.
LOAD THIS SKILL when: auditing Effect TypeScript compliance, user mentions 'effect scan', 'effect audit', 'effect best practices check', 'scan-effect-solutions'. Contains Effect compliance audit checklist covering tsconfig, services, data modeling, error handling, config, testing, runtime usage, and Option/Either anti-patterns.
Strategic test data generation, management, and privacy compliance. Use when creating test data, handling PII, ensuring GDPR/CCPA compliance, or scaling data generation for realistic testing scenarios.
Consumer-driven contract testing for microservices using Pact, schema validation, API versioning, and backward compatibility testing. Use when testing API contracts or coordinating distributed teams.
Plan and facilitate design sprints from challenge framing through prototype testing.