Build autonomous end-to-end full-stack testing agents using Claude's Computer Use API, LangGraph orchestration, and hybrid Playwright automation. Use this skill when building testing infrastructure, test automation, CI/CD test integration, or self-healing test systems.

Build end-to-end automated tests that simulate real user interactions across the full application stack. Use for E2E test, Selenium, Cypress, Playwright, browser automation, and user journey testing.

End-to-end testing expert for Playwright, Cypress, visual regression (Percy, Chromatic), and UI testing. Use for E2E tests, browser automation, visual diffs, or debugging flaky tests.

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E2E Validator Skill

Create resilient E2E tests using Playwright/Cypress

Write E2E tests with Playwright using selector best practices. Use when you need to write end-to-end integration tests, user scenarios, or complete workflows.

Run E2E tests for Sentry JavaScript SDK test applications

Specialized skill for editing and refining EAD2002 finding aids for the Terrence Kaufman Papers at the Archive of Indigenous Languages of Latin America (AILLA), Lillas Benson Latin American Studies and Collections, University of Texas at Austin. Use when working with KaufmanEAD.xml, implementing staff feedback, validating against EAD2002 standards, or referencing institutional finding aid examples.

Design system architecture from 10,000 feet. Soar above the codebase, survey the landscape, and create blueprints that stand the test of time. Use when planning major features, refactoring systems, or mapping how components interact.

earned-media-strategy

Analyzes why stocks moved after 8-K earnings filings. Use ultrathink for all analyses. Invoke when asked to analyze stock movements, earnings reactions, or determine the primary driver of price changes.

Translate user stories and informal requirements into precise, testable EARS format requirements.

EAS Update for OTA updates. Use when setting up over-the-air updates.

Expert in technical valuation approaches for easements including percentage of fee method, income capitalization, and before/after comparison. Use when valuing utility transmission easements, pipeline corridors, access easements, telecom sites, or when detailed methodology beyond basic percentage ranges is required. Key terms include easement valuation, percentage of fee, income capitalization, paired sales analysis, discount rate selection, agricultural rent analysis

Generate test infrastructure for eBPF CNF programs including network namespace setup, virtual interface creation, traffic generation, packet injection, and validation of packet processing logic. Use when implementing automated tests for CNFs.

Property-based testing and fuzzing using Echidna for smart contracts. Includes invariant definition, corpus management, coverage analysis, and CI/CD integration for comprehensive security testing.

Run and interact with eclair Lightning Network daemon in Docker. Use for Lightning development, testing payment channels on regtest, managing eclair containers, and calling eclair API endpoints (getinfo, connect, open/close channels, pay/receive).

Automates customer onboarding workflows for e-commerce platforms. Fetches recent WooCommerce orders, identifies first-time customers within a specified timeframe, syncs their information to a BigQuery CRM database, and sends personalized welcome emails using a template.

Fetch upcoming economic events and data releases using FMP API. Retrieve scheduled central bank decisions, employment reports, inflation data, GDP releases, and other market-moving economic indicators for specified date ranges (default: next 7 days). Output chronological markdown reports with impact assessment.

Analyzes Claude Code ecosystem health by tracking all 27 extensibility components across 6 tiers - including plugin components, core configuration, environment/CLI, authentication, session features, and integrations. Use when checking if Claude Code components are up-to-date, orchestrating audits efficiently, tracking documentation coverage, applying updates from new Claude Code versions, or getting an overview of ecosystem component staleness.

AWS CLI ECS command reference. Use when understanding how users interact with ECS via AWS CLI, including command syntax, options, examples, and output formats. Essential for KECS compatibility.

AWS Fargate serverless container compute for ECS. Covers Fargate vs EC2 decision guide, CPU/memory sizing, platform versions, Fargate Spot cost optimization, Graviton/ARM architecture, networking, and EFS integration. Use when deploying serverless containers, optimizing Fargate costs, sizing Fargate tasks, or choosing between Fargate and EC2 launch types.

Component research and procurement. Search JLC for components, analyze datasheets, compare options, and document selections with rationale.

Eval-Driven Development (EDD) Framework v2.64 - Define-before-implement pattern with structured evals. Provides workflow: Define specifications → Implement features → Verify against evals. Components: TEMPLATE.md for eval definitions, edd.sh CLI script, /edd skill invocation. Check types: CC- (Capability), BC- (Behavior), NFC- (Non-Functional). Integrates with orchestrator workflow for quality-first development. Keywords: evals, define, implement, verify, capability checks, behavior checks, non-functional checks, template, quality assurance, test-driven, specification. Use when: defining new features with structured evals, implementing with verification requirements, creating quality specifications, TDD-style workflow with evals.

World-class expert across full-stack, frontend, TypeScript, Python, Google Apps Script, testing, marketing, SaaS, Lean Six Sigma, and data analytics. Specialized in PostgreSQL/Supabase, LINE Platform, and production-grade application development. Use for any project requiring enterprise-scale software development.

Read from `Docs/context/` for project-specific patterns:

Perform differential expression analysis using edgeR in R/Bioconductor. Use for analyzing RNA-seq count data with the quasi-likelihood F-test framework, creating DGEList objects, normalization, dispersion estimation, and statistical testing. Use when performing DE analysis with edgeR.

Apply when doing planning for long-running tasks in sessions on top level

Comprehensive editing framework covering voice consistency, timeline verification, citation coverage, and multi-pass editing strategies for autonomous manuscript refinement.

I'm a specialized agent focused on line-level editing to improve clarity, concision, and style. I work at the sentence and word level to make your prose shine.

Implement IFieldEditor interface for custom type rendering in script inspector. Covers reflection-based field editing, FieldEditorRegistry registration, boxing/unboxing patterns, and extending the field editor system for new types.

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 Adobe Edge Delivery Services blocks.

Analyze and optimize E-E-A-T signals (Experience, Expertise, Authority, Trust) for content credibility.

Define services, provide layers, compose dependencies, and switch live/test. Use for DI boundaries and app composition.

Complete catalog of 130+ Effect-TS patterns from EffectPatterns repository. Use when looking for specific implementation patterns, best practices, or real-world examples. Complements other skills with concrete, curated patterns.

Expert regex pattern generation, optimization, testing, and explanation using deterministic AST-based construction. Use when user needs to create, test, optimize, or understand regex patterns, parse CLI commands, validate inputs, or build complex text matching patterns.

Effect-TS specialized research via deepwiki and submodules. Query Effect-TS/effect, tim-smart/effect-atom for verified patterns. Enforces grounded verification before implementation.

Testing patterns with layers, mocks, and deterministic time. Use when preparing testable services and small smoke tests.

Analyzes and refactors Go code using Effective Go principles. Use when refactoring Go code, identifying anti-patterns, improving Go idioms, or applying Go best practices.

Use when deploying Node.js applications to AWS Elastic Beanstalk or troubleshooting deployment issues - provides dependency installation strategies, monorepo handling, and deployment best practices

Expert in building cross-platform desktop applications using web technologies (HTML/CSS/JS) with the Electron framework.

Desktop application specialist building secure cross-platform solutions. Develops Electron apps with native OS integration, focusing on security, performance, and seamless user experience.

Build multi-file features with unstoppable momentum. Trumpet the vision, gather materials, construct with strength, test thoroughly, and celebrate completion. Use when implementing features that span multiple files or systems.

Expert elevator pitch consultant for creating compelling, concise 30-60 second introductions tailored to specific audiences and contexts. This skill should be used when users need to craft elevator pitches for job interviews, networking events, investor meetings, or social media profiles. Guides users through structured discovery, applies proven frameworks (Three C's, Four-Part Structure), integrates storytelling techniques, and delivers multiple pitch versions with industry-specific hooks and closing lines.

Hub skill for requirements elicitation. Provides technique selection, orchestration guidance, LLMREI patterns, and autonomy level configuration. Use when gathering requirements from stakeholders, conducting elicitation sessions, or preparing requirements for specification.

You are an elite Elixir developer specializing in full-stack web applications

Expert in Elixir, Phoenix Framework, and OTP. Specializes in building concurrent, fault-tolerant, and real-time applications using the BEAM. Use when building Elixir applications, working with Phoenix, implementing GenServers, or designing distributed systems on the BEAM.

Use when designing or architecting Elixir/Phoenix/LiveView applications, creating comprehensive project documentation, planning OTP supervision trees, defining domain models, structuring multi-app projects with path-based dependencies, or preparing handoff documentation for Director/Implementor AI collaboration

Run ExUnit tests with smart filtering, debugging options, and proper error reporting. Use when running tests, debugging failures, or validating specific test cases.