Build Rust code with proper error handling and optimization for development, testing, and production.
Connect coding agents to Xcode build, test, simulator, and project-inspection tools through XcodeBuildMCP's MCP server or CLI.
Use pgrx when an agent needs the Rust-native extension lifecycle for PostgreSQL, including local builds, test runs, and packaging across PostgreSQL versions.
Automatically builds and tests code changes. Use whenever code is modified, tests fail, before creating pull requests, or when verifying code quality.
Best practices, patterns, and examples for building goal-driven agents. Includes pause/resume architecture, hybrid workflows, anti-patterns, and handoff to testing.
Structures systematic trading strategy development with signal generation, backtesting, and validation.
Walk Claude through PyDESeq2-based differential expression, including ID mapping, DE testing, fold-change thresholding, and enrichment visualisation.
Walk Claude through PyDESeq2-based differential expression, including ID mapping, DE testing, fold-change thresholding, and enrichment visualisation. — from bg-szy/TOP-SKILLS
Build production-grade CLI tools with Bun. Reference implementation covering argument parsing patterns (--flag value, --flag=value, --flag), dual markdown/JSON output, error…
Modern JavaScript/TypeScript development with Bun runtime. Covers package management, bundling, testing, and migration from Node.js.
Bun runtime patterns and best practices. Package management, bundling, testing, scripts. Use when working with Bun as the JavaScript runtime.
Configure Bun's built-in test runner with Jest-compatible APIs. Use when setting up testing infrastructure, writing unit/integration/snapshot tests, migrating from Jest, or…
Use for bun:test syntax, assertions, describe/it, test.skip/only/each, and basic patterns.
Use for test coverage with Bun, --coverage flag, lcov reports, thresholds, and CI integration.
Use for test lifecycle hooks: beforeAll, afterAll, beforeEach, afterEach, fixtures, preload.
Use for mock functions in Bun tests, spyOn, mock.module, implementations, and test doubles.
C testing patterns: Unity framework (TEST_ASSERT_*), CMocka mocking with __wrap_ and linker flag, Valgrind leak checking, AddressSanitizer, CMake CTest integration, test…
Implement production-grade caching with cache keys/TTLs/consistency classes per query, SWR (stale-while-revalidate), explicit invalidation, HTTP cache headers, and comprehensive…
Computes VaR using parametric, historical simulation, and Monte Carlo methods with backtesting validation.
Camoufox is an open source anti-detect browser built on Firefox that provides robust fingerprint injection and anti-bot evasion for Python automation workflows.
Design optimal Facebook/Meta campaign structure for testing including ABO vs CBO, ad set organization, targeting, and budget allocation.
Use when verifying or debugging behavior that only manifests in the running Electron app — title-bar / window-control overlay, mount-time focus, keyboard shortcuts that depend on…
Configure CI/CD pipelines for Canva Connect API integrations with GitHub Actions. Use when setting up automated testing, configuring CI pipelines, or integrating Canva API tests…
Create a minimal working Canva Connect API example. Use when starting a new Canva integration, testing your setup, or learning basic Canva REST API patterns.
Implement Canva Connect API load testing, auto-scaling, and capacity planning. Use when running performance tests, planning capacity around Canva rate limits, or scaling Canva…
Configure Canva Connect API local development with hot reload and mock server. Use when setting up a development environment, testing OAuth flows locally, or establishing a fast…
Visual regression for canvas-rendered matrix progressions. Tests filmstrip strips that show how 2D data evolves visually over time.
Generates Capybara E2E tests in Ruby with RSpec integration. Acceptance testing DSL for web apps. Use when user mentions "Capybara", "visit", "fill_in", "click_button", "Ruby…
Build CarPlay-enabled apps using the CarPlay framework. Use when creating navigation, audio, communication, EV charging, parking, or food ordering apps for the car display,…
Evaluates Catz Android coding challenge submissions against SWORD Health requirements. Use when reviewing or assessing this coding challenge.
Run browser tests on pages affected by current PR or branch — from EveryInc/compound-engineering-plugin
Conduct a CFO-perspective financial impact review of a codebase. Analyzes infrastructure costs and scaling projections, pricing model alignment with architecture, build-vs-buy…
Classify a change set as behavior vs structure, then recommend the correct PR label (change:behavior or change:structure) and the appropriate local/CI checks.
Chaos engineering analysis that maps every external dependency and I/O boundary, then generates tests for timeouts, connection failures, corrupt responses, disk errors, OOM,…
Use when implementing chaos engineering, designing fault injection experiments, or building resilience testing practices. Covers chaos principles and experiment design.
Chaos engineering principles, controlled failure injection, resilience testing, and system recovery validation.
Chaos engineering principles, controlled failure injection, resilience testing, and system recovery validation.
Use when designing or implementing chaos engineering experiments to verify system resilience under failure conditions.
Create tests that describe what legacy code actually does (not what it should do) as safety net before refactoring
Deploy validation and reality-testing consciousness mode. Use when need to find edge cases, test assumptions, catch fatal flaws before they're expensive.
Expertise in generating domain-specific quality checklists for specifications. Activates when user discusses quality validation or requirement testing.
Master Chicago TDD (state-based testing). Create tests that verify observable behavior with real collaborators. Use chicago-tdd-tools 1.4.0 AAA pattern.
Implements strict data minimization and retention limits for children''s personal data under GDPR Art. 5(1)(c), Recital 38, UK AADC Standard 8, and COPPA Section 312.7.
Browser automation with two integrations - Chrome DevTools MCP (always available, performance tracing) and Claude-in-Chrome extension (authenticated sessions, GIF recording).
Control Chrome browser programmatically using chrome-devtools-mcp. Use when user asks to automate Chrome, debug web pages, take screenshots, evaluate JavaScript, inspect network…
Testing UI and automating browsers via Chrome DevTools MCP. Use when taking screenshots, checking console errors, testing UI interactions, or verifying visual changes.
Guide for using Claude Code with Chrome browser integration. Use when automating browser tasks, debugging web apps, testing UI, or extracting data from websites.
ใช้ chrome-devtools MCP สร้างและรัน test case (E2E/manual UI test) กับ Jewelry UI — ใช้เมื่อต้องทดสอบ flow บนหน้าจอจริง, verify feature, เขียน test case, หรือ reproduce bug ผ่าน…
Production-ready CI/CD configurations for Playwright — GitHub Actions, GitLab CI, CircleCI, Azure DevOps, Jenkins, Docker, parallel sharding, reporting, code coverage, and global…
Cache Playwright browser binaries in CI/CD pipelines (GitHub Actions, Azure DevOps) to avoid 1-2 minute download overhead on every build.
PR 作成後に .github/workflows/ci.yml が失敗したときの対応手順。ローカルで pytest 全ケースを実行し、エラー有無で分岐。エラーがあれば修正して commit-push スキルでコミット・プッシュ、無ければ GitHub Actions のログを確認して原因を特定する。
Manage CI pipelines with error handling, recovery, and complex dependencies. Use when testing pipeline workflows. Not for simple linear scripts or unit testing individual tasks.
Systematic hardware debugging guide for Arduino/ESP32/RP2040 circuits. Use when user reports: circuit not working, components getting hot, no power, intermittent failures,…
Test and validate Claude integrations in CI/CD pipelines — Use when working with ci-integration patterns. GitHub Actions, mocking strategies, and cost control.
Send your first message to Claude using the Anthropic SDK. Use when starting a new Claude integration, testing your setup, or learning the Messages API basics.
Reference guide for writing, testing, and configuring clarc hooks — PreToolUse, PostToolUse, SessionStart, SessionEnd patterns with suppression and cooldown.
Integrate Clari export pipeline testing and validation into CI/CD. Use when adding automated tests for Clari integrations, validating export schemas in CI, or testing pipeline…
Export your first Clari forecast and pipeline snapshot. Use when testing Clari API connectivity, pulling forecast data, or learning the export API structure.
Set up local development for Clari API integrations with mock data. Use when building forecast dashboards, testing export pipelines, or iterating on Clari data transformations…
Observable browser automation using Chrome MCP tools. Use when you need to browse websites, take screenshots, interact with web pages, or perform browser tasks in your current…