1,780 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.
Skill Claude CodeCodex
Generate comprehensive Vitest tests for code examples in JavaScript concept documentation pages, following project conventions and referencing source lines.
Skill Claude CodeCodex
Write comprehensive, behaviour-driven unit tests for Gradio frontend Svelte components using Vitest browser mode, Playwright, and the @self/tootils test utilities.
Cursor rule Cursor
// ✅ CORRECT: Legacy React Query pattern const ctx = konn() .beforeEach(() => createAppRouter()) .afterEach((ctx) => ctx?.close?.()) .done().
Cursor rule Cursor
// ✅ CORRECT: Use await using for automatic cleanup await using ctx = testReactResource(appRouter, { server: { // server configuration }, client(opts) { return { links: [ httpLink({ url: opts.httpUrl, // client configuration }), ], }; }, }).
coleam00/context-engineering-intro
Agent Claude Code
Testing and validation specialist for Pydantic AI agents. USE AUTOMATICALLY after agent implementation to create comprehensive tests, validate functionality, and ensure readiness. Uses TestModel and FunctionModel for thorough validation.
Instructions file GitHub Copilot
Instructions for data-privacy-stack/presidio, covering recognizer changes, the load-bearing rule: test the configuration path, placement and naming, pattern scores and context words.
Instructions file GitHub Copilot ✓ vendor
Vitest unit testing guidelines.
Plugin Claude Code
Bundles 13 skills · 1,495 tokens together
Write, run, and debug Ginkgo/Gomega test suites in Go. Skills for the tree-construction mental model, spec authoring and cleanup, tables and generated specs, the full decorator reference, filtering, parallelism, ordered/flaky specs, timeouts and async, the CLI and CI configuration, reporting, and JSON-first failure…
Agent Claude Code
Use this agent when you need to create unit tests for your code in unittest.TestCase format, organized in a tests folder with concept-based subfolders. Examples: Context: User has just written a new authentication module and needs comprehensive unit tests. user: 'I just finished writing my user authentication…
Skill Claude CodeCodex
Writes, reviews, and improves Swift Testing code using modern APIs and best practices. Use when reading, writing, or reviewing projects that use Swift Testing.
Skill Claude CodeCodex
Run one unattended iteration of the QUALITY-ASSURANCE loop — steward any in-flight QA PR, then build ONE queued qa issue (test infrastructure, unit tests, regression tests for known bugs) on a branch off auto-qa and open a PR that squash-merges on green CI. Adds tests and tooling only; never edits product source. Use…
Agent
Specialized in writing comprehensive test suites. Use for creating unit tests, integration tests, and test documentation.
Command Claude Code
Command "add-test" from mixedbread-ai/mgrep, covering add test, arguments and steps.
Skill Claude CodeCodex
Skill that binds a Spring-managed Java tool for DI verification tests.
Skill Claude CodeCodex
Run Prysm unit tests with Bazel for affected packages, or a given target.
callstack/react-native-testing-library
Skill Claude CodeCodex
Write tests using React Native Testing Library (RNTL) v13 and v14 (@testing-library/react-native). Use when writing, reviewing, or fixing React Native component tests. Covers: render, screen, queries (getBy/getAllBy/queryBy/findBy), Jest matchers, userEvent, fireEvent, waitFor, and async patterns. Supports v13 (React…
Skill Claude CodeCodex
A skill for writing Vuex unit tests. Vuex is a state-management library for Vue applications, and the skill covers initial state, mutations, actions, and getters.
Skill Claude CodeCodex
Test JS logic embedded in HTML using two-layer strategy - Python unit tests + Playwright browser integration tests.
jsynowiec/node-typescript-boilerplate
Instructions file
Instructions for jsynowiec/node-typescript-boilerplate, a project described as: Production-ready Node.js TypeScript boilerplate: ESM, Vitest, ESLint, Prettier, GitHub Actions, Mise, and AGENTS.md included.
Skill Claude CodeCodex
Use when modifying hot paths in NUnit — constraint evaluation, equality comparison, value formatting, reflection-based dispatch, collection inspection, or anything that runs once per assertion or per test discovery. Covers allocation patterns, reflection caching, and how the team expects performance claims to be…
Skill Claude CodeCodex
Use when writing or modifying tests in NUnit's own test projects, or when making a behavioral change to production code that needs test coverage. Covers test structure, attribute choice, helper visibility, platform guards, and which test projects are real.
Skill Claude CodeCodex
Use when writing or modifying async code in NUnit — async test lifecycle (setup/teardown), TestExecutionContext, AsyncLocal, Task/ValueTask continuations, blocking vs non-blocking waits, or conditional Thread.Abort code. Covers the threading/async conventions the NUnit runtime depends on.
Instructions file GitHub Copilot
Guidelines for writing and maintaining tests in Math-To-Manim.
Plugin Claude Code
Bundles 12 skills · 1,440 tokens together
Write expressive, correct Gomega assertions in Go. Skills for the Expect/Ω model, synchronous and asynchronous (Eventually/Consistently) assertions, the full matcher catalog, composing and authoring custom matchers, and the gstruct, ghttp, gexec, gbytes, gleak, and gmeasure sub-libraries.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: