REQUIRED when modifying any file in packages/playground-ui or packages/playground. Triggers on: React component creation/modification/refactoring, UI changes, new playground…
Run the full Concertable UI E2E suite (Reqnroll + Playwright, all 30 scenarios) and diagnose / fix failing ones using enriched HTTP + Playwright logs.
Implement UI E2E tests sequentially using Playwright MCP, stop on bug discovery. Use after e2e-ui-research to implement the planned test scenarios.
Fix bugs from e2e-ui-execute bug reports with Playwright MCP verification. Use after discovering bugs during E2E test execution.
Validates end-to-end user workflows and system behavior. Activates via codeword [ACTIVATE:E2E_VALIDATOR_V1] injected by hooks when entering Phase 10 E2E testing.
Use to verify changes to agents, capabilities, integrations, steps, or runtime end-to-end before declaring a task done.
Run Playwright browser tests against the channelhub web dashboard. Use when validating UI changes (kebab menu, autopilot toggle, escalation card, settings panels) — the SPA has…
宣言した処理（計測 / 通知 / 保存 / 検証 / 例外通知）が起点から末端まで途切れず配線されているかを確認し、「実装したつもり」で経路が途中で止まっている欠落を検出する
Node.js platform functions for the East language. Use when writing East programs that need Console I/O, FileSystem operations, HTTP Fetch requests, Cryptography, Time operations,…
Generate test infrastructure for eBPF CNF programs including network namespace setup, virtual interface creation, traffic generation, packet injection, and validation of packet…
Create an Ubuntu 24.04 LTS EC2 instance with Claude Code, Playwright (headless browser testing), tmux, git, beads (bd) task tracking, and agent-deck session manager pre-installed.
Playwright E2E testing patterns, Page Object Model, configuration, CI/CD integration, artifact management, and flaky test strategies. — from ssrxs/scx-studio-pro-fixed
Audit and optimize e-commerce landing pages for conversion. CTA placement, trust signals, page structure, copy optimization, and A/B testing strategy for product pages, collection…
Use when stress-testing identification, assumptions, asymptotics, regularity conditions, and proofs in a The Econometrics Journal (EctJ) submission, including proof placement…
Advanced Edge Computing patterns — streaming responses (TransformStream, Server-Sent Events), edge caching (Cache API, stale-while-revalidate), Miniflare testing, and common edge…
Guide for testing EDS blocks using test.html files and the development server. Covers test file structure, EDS core integration, testing patterns, and debugging workflows for…
Set up a GitHub Actions CI/CD pipeline for an AEM Edge Delivery Services project. Generates workflow YAML files for ESLint (Airbnb rules), Lighthouse CI performance testing, link…
Declarative actors and durable workflows for @effect/cluster. Use when building actor/entity definitions with effect-encore, wiring handlers, writing execute/send/peek/watch…
Expert regex pattern generation, optimization, testing, and explanation using deterministic AST-based construction.
Testing patterns with layers, mocks, and deterministic time. Use when preparing testable services and small smoke tests.
Use for implementing or amending unit tests and Playwright tests when features or behavior change, ensuring updates are validated with robust, maintainable test coverage.
Use when writing Electrobun tests, adding test coverage to the Kitchen Sink, implementing the defineTest() pattern, generating new test suites, understanding what the kitchen sink…
Generate mocks for Electron APIs (ipcMain, ipcRenderer, dialog, etc.) for unit testing
Validate Electron desktop app UI using Playwright automation via the e-cli tool. Use when testing Electron app UI, validating after code changes, checking if tabs render, clicking…
Evaluate existing and changed tests by challenging them with risk-ranked mutations, measuring incremental protection and protection regressions, analyzing catches and survivors,…
Generate your first ElevenLabs text-to-speech audio file. Use when starting a new ElevenLabs integration, testing your setup, or learning basic TTS API patterns.
Configure local ElevenLabs development with mocking, hot reload, and audio testing. Use when setting up a dev environment for TTS/voice projects, configuring test workflows, or…
Emacs Lisp development best practices including file templates, project structure, testing, and coding style. Use when writing Emacs Lisp packages or configuration.
MANDATORY for ANY feature or bugfix - write ExUnit test FIRST, watch it FAIL, then implement. NO exceptions. Use before writing any Elixir production code.
Run ExUnit tests with smart filtering, debugging options, and proper error reporting. Use when running tests, debugging failures, or validating specific test cases.
ExUnit testing patterns, Mox for mocking, StreamData for property-based testing, and Phoenix test cases for Elixir applications.
Expert ElizaOS plugin and agent development (January 2026). Use when (1) Building ElizaOS plugins, (2) Creating AI agent characters, (3) Implementing actions, providers,…
C++17 embedded systems development guidelines. Pure virtual HAL interface abstraction, RAII resource management, lightweight handwritten Mock strategy without Google Mock macros,…
Embedded test-design expert that operates in two modes: (1) Unit-test generation — analyse a C function for decisions and conditions, produce test cases achieving MC/DC coverage…
Document REST API endpoints through systematic empirical testing. Analyzes URL structure, generates minimal test cases, executes requests, and produces concise API documentation.
Block implementation-first agent behavior and keep Claude Code anchored to failing-tests-first TDD loops.
Use when the user asks to generate API tests, create integration test suites, test REST endpoints, or build contract tests. — from LucasSantana-Dev/forgekit
Complete Rails engine development loop. Orchestrates scaffolding engine structure and generating mountable namespaces → testing → code review and dependency auditing → release.
Test-first discipline for FlatRedBall2 engine changes. Triggers whenever editing any file under src/ for a behavior change (bug fix or feature).
Design test strategies and test plans. Trigger with "how should we test", "test strategy for", "write tests for", "test plan", "what tests do we need", or when the user n — from…
Use when you (a coding/execution agent) are designing, building, or testing actual code and want to apply established engineering theories well —— 当你(执行 agent)在动手设计 / 开发 /…
Automated E2E testing and error resolution using Playwright MCP integration (Codex skill for /ensemble:playwright-test)
Use when dispatched to author the QA test plan for a game feature. Translates a feature spec into player-journey test cases (happy paths, edge cases, adversarial inputs), grouped…
Domain-specific testing patterns for episodic memory operations. Use when testing episode lifecycle, pattern extraction, reward scoring, or memory retrieval.
Build a standards-compliant EPUB 3 file from a manuscript markdown, cover image, and book_manifest.json using the bundled pandoc-based script.
ERNE — Test-driven development workflow with Jest and React Native Testing Library
Generates Espresso UI tests for Android apps in Kotlin or Java. Espresso runs inside the app process for fast, reliable UI testing.
Bias detection and mitigation, fairness metrics, privacy frameworks, consent models, transparency requirements, and accountability structures for data science practice.
EU AI Act (Regulation EU 2024/1689) compliance specialist. Use when classifying AI systems by risk tier, assessing provider or deployer obligations, evaluating GPAI model…
Evaluation strategies and quality gates for LLM systems. LLM-as-judge implementation, prompt regression testing, structural and semantic validation pipelines, production…
Evaluation harness for testing agent and skill quality through structured benchmarks, regression tests, and quality scoring.
Run Microsoft's eval-recipes benchmarks to validate amplihack improvements against baseline agents. Auto-activates when testing improvements, running evals, or benchmarking…
Git branch cleanup utility. Lists and deletes branches that have been merged to main. Use when user wants to clean up old branches, delete merged branches, or tidy up their git…
Evaluate RAG systems with hit rate, MRR, faithfulness metrics and compare retrieval strategies. Use when testing retrieval quality, generating evaluation datasets, comparing…
Evaluate skills by executing them across sonnet, opus, and haiku models using sub-agents. Use when testing if a skill works correctly, comparing model performance, or finding the…
Build evaluation frameworks for agent systems. Use when testing agent performance systematically, validating context engineering choices, or measuring improvements over t — from…
Build evaluation frameworks for agent systems. Use when testing agent performance systematically, validating context engineering choices, or measuring improvements over t — from…
Evaluate agent systems with quality gates and LLM-as-judge. Use when you need to measure component quality or implement quality gates.
Builds repeatable evaluation systems with golden datasets, scoring rubrics, pass/fail thresholds, and regression reports.
Create a minimal working Evernote example. Use when starting a new Evernote integration, testing your setup, or learning basic Evernote API patterns.