Detect, quarantine, and systematically fix flaky tests with automated retry analysis, root cause categorization, and CI pipeline integration for test reliability

Exhaustive testing of form validation logic including boundary values, injection payloads, encoding edge cases, and client-server validation bypass techniques

Verify loading indicators, skeleton screens, and progress bars appear correctly during async operations and disappear on completion or error.

AI-powered testing patterns with Mabl including auto-healing tests, visual regression, API testing, performance monitoring, CI/CD integration, and intelligent test maintenance using Mabl's machine learning capabilities.

Identify and diagnose memory leaks in web applications using heap snapshots, allocation timelines, and automated leak detection patterns.

Test touch gestures including swipe, pinch-to-zoom, long press, and drag-and-drop on mobile viewports and touch-enabled devices.

Generate and run mutation tests to measure test suite effectiveness by introducing code mutations and verifying detection rates.

Analyze page load performance using Core Web Vitals, Lighthouse scores, resource waterfall analysis, and performance budgets with automated regression detection.

Generate optimized test combinations using pairwise (all-pairs) testing algorithms to achieve maximum coverage with minimum test cases across multiple input parameters

Generate realistic performance test scenarios with load profiles, ramp-up patterns, think times, and acceptance criteria derived from production traffic analysis

Enterprise-grade Playwright test automation framework using 8-layer architecture with Page Object Model, Module Pattern, custom fixtures, API testing layer, structured logging, data generators, multi-browser support, Docker, CI/CD pipelines, and custom HTML reporting.

Build lightweight production smoke test suites that verify critical user paths, API health, and third-party integrations after every deployment.

Detect and diagnose race conditions in web applications through concurrent interaction testing, state mutation analysis, and timing-sensitive scenario reproduction.

Convert bug reports and incident post-mortems into automated regression tests that prevent recurrence of previously discovered defects.

Systematically test responsive layouts across breakpoints to find overflow, overlap, and alignment bugs using viewport simulation and visual comparison.

Comprehensive SDET interview preparation covering coding challenges, system design for testing, automation framework design, CI/CD pipeline questions, testing strategy discussions, and behavioral interview patterns for QA engineering roles.

Build reusable test data factories with realistic fake data generation, relationship handling, and deterministic seeding for reproducible tests.

Quantify and prioritize test technical debt by analyzing coverage gaps, flaky test ratios, outdated assertions, and missing test categories across codebases.

Master the Test-Driven Development approach with Red-Green-Refactor cycles, writing tests before code, comprehensive coverage patterns, and quality code practices for building robust, maintainable software.

Test plan generation skill covering requirements analysis, test strategy, coverage matrices, risk-based testing, and test estimation techniques.

Building test reporting dashboards with real-time execution metrics, trend analysis, flaky test detection, coverage visualization, and integration with Allure, ReportPortal, and custom dashboards using Grafana and Prometheus.

Comprehensive test strategy design methodology covering risk-based testing, test pyramid optimization, coverage planning, environment strategy, data management, and test automation ROI analysis for enterprise and startup contexts.

Identify and log user experience friction points including excessive clicks, confusing navigation, slow interactions, and workflow bottlenecks through automated heuristic analysis

Anthropic's official web application testing skill using native Python Playwright scripts with helper utilities for server lifecycle management, browser automation, and comprehensive E2E testing workflows.

You are a content strategist who specialises in technical and founder LinkedIn content. Your job is to convert raw input into a high-performing LinkedIn post that follows the platform's proven content

Take a company name and optional contact. Research the company via Tavily. Synthesize a 1-page pre-call brief with Gemini. Optionally save to Notion.

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Given a product utility and ICP, researches the internet to find the specific channels. Where your customer actually lives, ranked by reachability with a full per-channel playbook. Returns evidence that your ICP is there, one entry tactic, one content angle, and specific anti-patterns per channel. Use when asked where my customer hangs out, what communities should I post in, where is my ICP, find channels for outreach, what forums does my ICP use, where should I spend time for distribution, or which communities are right for my product.

PI Cognitive AI. Trigger: coding/development/fleet/architecture/API/debugging/bug/error/testing/compile/test/git/make/release/verify/product/requirements/ops/growth/creative/design/collaboration/team/communication/interaction/support, or 2+ failures/looping/giving-up/retry/nevermind

PI 智行合一。触发：编程/开发/fleet/代码/架构/API/调试/修复/优化/bug/报错/测试/编译/compile/test/git/make/发布/验证/产品/需求/运营/增长/创意/设计/协作/团队/沟通/交互/陪伴/情感，或失败2+次/打转/言退/再试试/换个参数/算了

通过搜-读-验-交付工作流、结构化7步调试、证据驱动的代码审查和失败升级协议，引导迭代式问题解决，覆盖编程开发、产品设计和团队协作场景。适用于：处理复杂开发任务、调试持续错误（失败2+次）、执行严格代码审查，或协调需要逐步验证的多步骤项目交付。

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**English | [한국어](WHAT_IS_SKILL_kr.md)**

Use when working with Go formatting, line length, nesting, naked returns, semicolons, or core style principles. Also use when a style question isn't covered by a more specific skill, even if the user doesn't reference a specific style rule. Does not cover domain-specific patterns like error handling, naming, or testing (see specialized skills). Acts as fallback when no more specific style skill applies.

Comprehensive guide for building Chrome extensions with Manifest V3. Use this skill whenever the user mentions Chrome extension, browser extension, manifest.json, content script, service worker (in extension context), popup, side panel, chrome.runtime, chrome.tabs, chrome.storage, chrome.scripting, background script, MV3, Manifest V3, or any Chrome extension API. Also trigger when the user wants to inject scripts into web pages, communicate between page and background, bypass CSP from a content script, build an RPC layer over chrome messaging, or publish to the Chrome Web Store. Covers both new extension projects and adding features to existing ones. Do NOT use for framework-specific questions.

Write professional press releases for any occasion, media type, and country. Use when the user wants to write, draft, or improve a press release, communiqué de presse, media announcement, news release, or PR statement — including product launches, funding rounds, partnerships, crisis communications, earnings, executive hires, events, M&A, open source milestones, and media advisories. Covers all release types, media targets (print, digital/wire, broadcast, social/SMPR, trade press), and region-specific conventions (Western/Eastern Europe, Americas, Middle East, Africa, Asia, Oceania). Also trigger when the user says 'I need to announce something' or 'how do I tell the press about X.'

Compliance expert for snyk-agent-scan — the agent skill file scanner — NOT for other Snyk CLI tools (snyk test, snyk code SAST, snyk iac, snyk container). Fixes alerts through content restructuring, never by suppressing or deleting information. Covers every file in a skill directory: SKILL.md, references/, assets/, and any secondary markdown. Apply when authoring a new skill, editing an existing one, triaging a failed snyk-agent-scan run locally or in CI, or unblocking a PR held by agent scanner failures. Not applicable to dependency vulnerabilities, code security findings, or infrastructure misconfigurations — those are out of scope.

Write compelling technical articles and blog posts for developer audiences. Use this skill whenever the user asks to write a blog post, technical article, or any long-form technical content. Also trigger when the user says 'write about [technical topic]', 'help me draft an article', 'turn this into a blog post', 'write a post about', 'I want to publish something about', or mentions writing for a developer audience. Covers the full pipeline: idea sharpening, hook/title generation, article structure, body drafting, and editing. Even if the user just says 'I want to write about X' without specifying format, use this skill. Do NOT use for platform-specific optimization, newsletter strategy, or ghostwriting voice matching.

Convert Claude Code commands (.claude/commands/*.md) to standard Agent Skills (skills/*/SKILL.md). Use when migrating slash commands to portable skill format, creating skills from existing commands, or standardizing command definitions across AI runtimes.

Create or update the project constitution from interactive or provided principle inputs, ensuring all dependent templates stay in sync.

Create a complete webhook skill for {{PROVIDER}} following the AGENTS.md specification in this repository.

Fetches up-to-date documentation for Cesium, CesiumJS, Cesium Viewer, 3D Tiles, Unreal Engine integration, Unity integration, cesium-unreal, cesium-unity, ACesium3DTileset, ACesiumGeoreference, Globe Anchor, Cesium plugin, georeferencing, and Cesium-related APIs using Context7 MCP tools. Useful for CesiumJS classes (Viewer, Entity, Camera, Scene, Cartesian3, etc.), Unreal Engine Cesium components, Unity Cesium components, 3D Tiles specification, and Cesium integrations. Use query-docs with library IDs: /cesiumgs/cesium (CesiumJS), /cesiumgs/cesium-unreal (Unreal), /cesiumgs/cesium-unity (Unity), /websites/ogc_cs_22-025r4 (3D Tiles spec).