Flowy lists 79 plugins in the Testing category for Claude Code. test generation, TDD, QA, coverage, e2e, linting, static analysis Every listing shows what is inside before you install, who built it, and whether it is Auto-invoked, meaning a FLOW.md router fires the right skill as you prompt instead of leaving them dormant.
Skills for working on Playwright itself, covering development of new APIs and CLI commands, CI failure analysis, cherry-picking to release branches, triaging bug reports, and querying test results. Aimed at Playwright contributors and maintainers.
@microsoftInstall PluginThe open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.
@grafanaInstall PluginSkills for evaluating and red-teaming LLM apps with Promptfoo. Covers writing and running eval suites, connecting Promptfoo to models and APIs, and running and rerunning redteam security scans.
@promptfooInstall PluginSkills for evaluating AI agents, RAG pipelines and LLM apps with DeepEval metrics, and for tracing those apps with OpenTelemetry or DeepEval tracing into Confident AI.
@confident-aiInstall PluginGives Claude Code skills for automating browser interactions, testing web pages and working with Playwright tests. A separate dev skill covers maintenance tasks for the playwright-cli repository, such as rolling dependencies and releasing.
@microsoftInstall PluginLets AI coding agents drive and verify mobile apps on iOS, Android and Amazon Vega TV simulators or devices. Agents can launch apps, inspect the live UI, tap, type and check their own code changes, plus run exploratory bug hunts.
@callstackincubatorInstall PluginPowerful, elegant and flexible test framework for Kotlin with assertions, property testing and data driven tests.
@kotestInstall PluginA zero-config linting and formatting preset for JavaScript and TypeScript projects. Claude can set it up in a project or migrate an existing lint and format setup to it.
@haydenbleaselInstall PluginBrowser automation and verification skills for Claude Code. The browser skill navigates pages, fills forms, extracts page data and captures screenshots, while the check skill tests acceptance criteria in a live browser or recording.
@vibiumdevInstall PluginEnforces test-driven development in Claude Code by checking that tests are written before implementation code. Includes a setup skill that installs the matching test reporter for your framework. The creator says this project has moved to Probity, which new projects should use.
@nizosInstall PluginSkills for testing and debugging MCP servers. They generate Jest or Vitest eval suites with @mcpjam/sdk, convert existing test corpora into MCPJam eval files, and inspect server behavior, OAuth, and tool, resource, and prompt output.
@mcpjamInstall PluginSkills for KiCad electronics projects that analyze schematics, PCB layouts and Gerber files for design bugs and EMC risks, manage bills of materials, search distributors like DigiKey and Mouser, and extract specifications from component datasheets.
@aklofasInstall PluginGives Claude Code a tool that writes Playwright end to end tests for Vortex from a plain description or a Linear issue, and a log watcher that tails and investigates Vortex log files, so testing and debugging the mod manager take less manual work.
@nexus-modsInstall PluginRuns your repository's tests, builds and UI checks on a remote machine while you keep editing locally. Choose a cloud box, a local VM or container, or a machine you already own.
@openclawInstall PluginEvaluates Agent Skills, agents and workspaces by running declarative test cases and grading the responses and file changes, with reports produced locally or in CI. It can also inspect failures and improve a skill's test suite from conversation.
@alibabaInstall PluginAn AI agent skill that runs pre-submission checks on your iOS/macOS project to catch common mistakes that lead to App Store rejection.
@truongduy2611Install PluginRuntime testing skills for Claude Code that let an agent verify web and desktop apps as they actually run. They cover test-driven development against the live app, sweeping for dead buttons, diagnosing broken UI, and driving Electron or Tauri apps.
@reticlehqInstall PluginTeaches Claude Code to benchmark Clojure code and measure execution time using the criterium library, covering its bench macro and plans, JIT warmup and GC isolation for statistically sound results.
@hugoduncanInstall PluginA Claude Code skill that simulates peer review of CS conference papers (vision, NLP, and ML venues) before submission. It can review a manuscript, give a verdict, edit the LaTeX, and check the claims.
@spark-to-paper-skillsInstall PluginGrades the output of AI agents and chatbots against quality criteria, so you can test an app at scale instead of reviewing answers by hand. It also checks academic papers for correctness and novelty and verifies BibTeX references for fabricated citations.
@agentscope-aiInstall PluginSkills for writing, running and debugging natural language QA tests for web and mobile apps. They cover authoring and validating agent-qa tests, triaging failed runs from their artifacts, and patching the underlying issue.
@vostrideInstall PluginA skill for coding agents that makes them prove their work: the implementation is wrapped in an executable spec and a gauntlet of tests, types, coverage, and mutation checks, so line-by-line review becomes optional. Also includes an API design skill.
@amazingangInstall PluginAn eval harness for AI coding agents. Define tasks, run any agent, score with deterministic scripts, LLM judges, or human reviewers.
@mgechevInstall PluginA Claude Code plugin that checks AI-generated code against its design specs, with audit logs, auth, and database skills for bkend.ai projects. Useful for developers reviewing code that an AI assistant wrote.
@popup-studio-aiInstall PluginA Claude Code plugin of Harbor skills for building and evaluating LLM agents on long-horizon terminal tasks. It covers creating benchmark adapters, writing tasks and verifiers, and publishing tasks or datasets to the Harbor registry.
@zli12321Install PluginAn in-the-wild benchmark for AI agents in the production harness.
@internlmInstall PluginGenerates tests, finds coverage gaps and investigates flaky tests for your coding agent, so quality checks run alongside the code instead of as a separate manual pass.
@proffesor-for-testingInstall PluginScopy is a software oscilloscope and signal analysis toolset.
@analogdevicesincInstall PluginLets Claude Code test your UI changes in a real browser: it reads your git diff, works out which user flows it affects, runs them, and gives you a screen recording, logs, network traces and a reusable Playwright script for CI.
@0xnynInstall PluginA skill that helps Claude Code write, review, and improve Swift Testing code using current APIs. Useful for projects that test with Swift Testing.
@twostrawsInstall PluginCatches accessibility problems while an AI coding assistant writes web interface code, so WCAG accessibility issues are caught before they ship. It also compares audits across commits to flag regressions and drafts an accessibility statement from the findings.
@community-accessInstall PluginFinds functions that do the same job under different names, queries MCP servers only when you ask so they stay out of your context, drives interactive tools like vim or a Python REPL through tmux, and sets up a headless Windows VM you can SSH into.
@obra-2Install PluginOne Java engine for web, mobile, API, CLI, database, and desktop. Drivers, waits, and evidence are handled. Every run ends in an Allure report.
@shafthqInstall PluginPlaywright skill for writing, debugging, and scaling end-to-end, API, component, visual, accessibility, and security tests, with guidance on CI/CD, page objects, trace debugging, and migration.
@testdino-hqInstall PluginLets an AI agent run end-to-end tests on a running app across Flutter, React Native, iOS, Android, Electron, Tauri and more. It connects over MCP so the agent can take screenshots, tap elements and enter text from plain English instructions.
@ai-dashboadInstall PluginBenchmarks and optimizes code for performance using CodSpeed, with CPU-simulated measurements, differential flamegraphs to find regressions commit by commit, and PR status checks. Includes skills to set up benchmark harnesses and to optimize code iteratively.
@codspeedhqInstall PluginA native macOS developer tool that uses an AI agent to drive an iOS Simulator, a macOS app, or a web app, so you can run user-style tests on them.
@awizemannInstall PluginLets you write end-to-end tests for apps that are hard to cover with normal tools, such as desktop apps, third-party web apps, OAuth flows and browser extensions. An AI vision model drives a cloud sandbox device and checks what appears on screen.
@testdriveraiInstall PluginGenerates end-to-end tests from requirements and runs them on desktop web, Android and iOS emulators, simulators and real devices, then reports what requirements they cover.
@lambdatestInstall PluginClaude Code skills and agents for QA automation engineers, covering accessibility testing with Playwright and Selenium, REST and GraphQL API tests, live browser control from the CLI, and test strategy review.
@fugaziInstall PluginGives your AI coding agent QA testing knowledge so it writes end-to-end and API tests with patterns like Page Object Model and fixtures, without you asking. Also covers test deployment and SEO article publishing.
@pramodduttaInstall PluginA testing workflow plugin that finds high-value test candidates, writes focused tests, generates realistic workloads, reviews test value, and diagnoses test-suite health.
@workersioInstall PluginTwo skills that help an AI coding agent design meaningful tests, run them, and explain the results for systems that store data or run across multiple processes or machines.
@shenliInstall PluginServer-agnostic MCP testing framework and full-stack MCP App framework for ChatGPT Apps, Claude Connectors, and more.
@alignbaseInstall PluginA testing workflow skill that finds high-value test candidates, writes focused tests, generates realistic workloads, reviews test value, and diagnoses test-suite health for Claude Code users.
@workersioInstall Plugin
@leeguoooooInstall Plugin
@buer2233Install PluginA Claude Code skill that deliberately consumes tokens on demand, with selectable load levels of small, medium, large, or extra large. Useful for stress testing an LLM backend or measuring token usage.
@lomnus-aiInstall PluginA methodology kit for Claude Code that drives feature work through acceptance test driven development, with spec-first artifacts, architecture checks, and a CRAP analyzer for risk-based refactor and test plans on changed code.
@swingermanInstall PluginSkills for setting up, running and reviewing coder-eval, an evaluation tool for coding agents. They scaffold task suites, check whether skills activate, analyze failed runs, lint task files, and generate CI workflows that gate on pass or fail.
@uipathInstall PluginHelps you write end-to-end tests by discovering your application through use case validation, so the tests stay readable for any English or French speaker. Includes accessibility testing and test automation support.
@e2e-test-questInstall PluginNext-generation UI automation harness powered by Python & Playwright. Chat with AI Agents to seamlessly generate, architect, and execute enterprise-grade UI test code.
@danielsuo117Install PluginGives Claude Code a browser automation server for running end-to-end tests on web applications. It can navigate pages, click, take screenshots, record sessions, and check accessibility snapshots.
@debugbaseInstall PluginRegression testing for AI agents. Snapshot behavior,diff tool calls,catch regressions in CI. Works with LangGraph, CrewAI, OpenAI, Anthropic.
@hidai25Install PluginAgent skills for fallow. They teach coding agents (Claude Code, Codex, Cursor, and others) to check health, complexity, duplication, architecture, styling drift, and unused code with fallow.
@fallow-rsInstall PluginWe are dedicated to building a set of open agent skills that deliver superior performance, higher determinism, and greater consistency on targeted tasks, while operating at a lower cost and with reduced context usage.
@masslab-siiInstall PluginDon't trust your agent. Verify it. Coding agents write more code than anyone can read, and reviewing the diff does not run it. So the agent says done and the tests are green, and both of those came from the agent.
@opslaneInstall PluginA Harness Engineering tool for turning quality rules, architecture constraints, and validation steps into executable guardrails.
@phodalInstall PluginOpen-source Agent Skills for automated visual testing and accessibility setup of iOS/SwiftUI applications using Claude Code's computer use.
@yusufkaranInstall PluginMeasure prompt and skill improvements with blind A/B comparison.
@shinprInstall PluginA Claude Code plugin for Unity projects that guides coding agents through a test-first workflow, covering code writing, scene and prefab editing, bug fixing, feature planning, and test refinement.
@nowsprintingInstall PluginA Claude Code plugin that catches bugs in AI-generated code by verifying against requirements, not implementation.
@verttiInstall PluginAudits stateful code end to end by instrumenting a copy, capturing real execution traces, and deriving invariants to find paths your tests miss. Also includes skills for writing verifiable state machines and rendering verification diagrams.
@cognitive-fabInstall PluginMakes the AI agent work like a careful QA engineer: every pass or fail verdict must rest on an observed artifact such as a screenshot, network response or log, and anything not checked is marked as not tested instead of guessed. Includes help drafting bug reports and test cases.
@akovalionInstall PluginRuns a disciplined, test-first workflow for building features and fixing bugs in Claude Code. It brainstorms and plans before coding, reviews finished work against the plan, and guides Playwright end-to-end tests for Next.js and React apps, so you stop skipping tests and debugging by guesswork.
@burhankhatriInstall PluginChecks a pull request against its acceptance criteria, suggests the test scenarios you need, and flags which existing tests the change may break. Each check writes a Markdown report you can paste into GitHub or Jira.
@anasssInstall PluginAI phantom users that test your app the way real users actually use it.
@chocolatine75Install PluginA Claude Code and Codex skill that tests a running app end to end, finds bugs with a severity report, and judges whether it is ready for production. Aimed at vibe coders who want to check their app actually works.
@tsakunovrInstall PluginA skill for Claude Code that checks a website before it goes live. It runs 5 sub-audits (technical SEO, AI accessibility, security, performance, and on-page SEO), then tells you what to fix before launch, in priority order.
@bzsassonInstall PluginGives your coding agent Playwright patterns for tests you commit and run in CI, not one-off scripts. It writes accessible locators, assertion-driven waits, reusable auth state and network mocks, and helps debug flaky tests from traces.
@hzijadInstall PluginAdds a test-first step to OpenSpec, writing real failing tests from the BDD scenarios in specs before implementation begins. It runs between opsx:propose and opsx:apply.
@yuritoledoInstall PluginRegression testing for Claude Skills that catches behavior changes after a model update in CI and turns each failure into a permanent test case. Includes a skill guardrail that applies when creating or editing a SKILL.md file.
@kabirnarang39Install PluginA quality-first harness for autonomous coding agents that checks work with an independent, default-fail reviewer before accepting it as done. Adds skills for running a task queue, quick lint, type and test checks, and project setup.
@23ag1Install PluginTwo composable, tool-agnostic skills for design-to-code fidelity, get the real design out of Figma, then prove the running app actually matches it.
@jeltehommingaInstall PluginA Claude Code plugin that checks changes to Shopify embedded apps by driving the real, authenticated Shopify admin in your own browser. After the agent edits app code, it verifies the result against the plan and repeats until the check passes.
@mrmarufproInstall PluginA skill that makes Claude Code verify end-to-end outcomes across components, environments, and external systems before it treats a task as complete, labeling the evidence it gathers.
@lum1104Install PluginAudits a web page or site for loading speed and responsiveness using Core Web Vitals (LCP, CLS, INP, TBT), producing a structured report with suggested fixes for images, fonts and JavaScript.
@evedensityInstall PluginDrive an Android emulator from your LLM. Build, install, launch, and test a feature end-to-end, get a unified logcat-and-actions timeline back.
@fclab-skkuInstall Plugin
