Vitest llms.txt · AI Docs Browser · mdream [llms.txt Tools](https://mdream.dev/llms-txt/vitest/llms-txt) # Vitest llms.txt Browse Vitest documentation as markdown. Click any page in the sidebar to view it, or copy the full llms.txt for your AI tools. www.vitest.dev/llms.txt [Raw llms.txt](https://www.vitest.dev/llms.txt) [Raw llms-full.txt](https://www.vitest.dev/llms-full.txt) Copy Markdown [](https://www.vitest.dev/llms.txt) llms.txt Table of Contents Configuring Vitest include | Config exclude | Config includeSource | Config name | Config server | Config deps | Config runner | Config benchmark | Config alias | Config globals | Config environment | Config environmentOptions | Config watch | Config watchTriggerPatterns | Config root | Config dir | Config reporters | Config outputFile | Config pool | Config execArgv | Config vmMemoryLimit | Config fileParallelism | Config maxWorkers | Config testTimeout | Config hookTimeout | Config teardownTimeout | Config silent | Config setupFiles | Config provide | Config globalSetup | Config forceRerunTriggers | Config coverage | Config testNamePattern | Config ui | Config open | Config api | Config clearMocks | Config mockReset | Config restoreMocks | Config unstubEnvs | Config unstubGlobals | Config snapshotFormat | Config snapshotSerializers | Config resolveSnapshotPath | Config allowOnly | Config passWithNoTests | Config logHeapUsage | Config css | Config maxConcurrency | Config cache | Config sequence | Config tags | Config strictTags | Config typecheck | Config slowTestThreshold | Config chaiConfig | Config bail | Config retry | Config onConsoleLog | Config onStackTrace | Config onUnhandledError | Config dangerouslyIgnoreUnhandledErrors | Config diff | Config fakeTimers | Config projects | Config isolate | Config includeTaskLocation | Config snapshotEnvironment | Config env | Config expect | Config printConsoleTrace | Config attachmentsDir | Config hideSkippedTests | Config mode | Config expandSnapshotDiff | Config disableConsoleIntercept | Config experimental | Config browser.enabled | Config browser.instances | Config browser.headless | Config browser.isolate | Config browser.testerHtmlPath | Config browser.api | Config browser.provider | Config browser.ui | Config browser.detailsPanelPosition | Config browser.viewport | Config browser.locators | Config browser.screenshotDirectory | Config browser.screenshotFailures | Config browser.orchestratorScripts | Config browser.commands | Config browser.connectTimeout | Config browser.trace | Config browser.trackUnhandledErrors | Config browser.expect | Config Configuring Playwright Configuring WebdriverIO Configuring Preview Why Vitest | Guide Getting Started | Guide Features | Guide Writing Tests | Guide Using Matchers | Guide Testing Asynchronous Code | Guide Setup and Teardown | Guide Mock Functions | Guide Snapshot Testing | Guide Testing in Practice | Guide Debugging Failing Tests | Guide Writing Tests with AI | Guide Why Browser Mode | Browser Mode Browser Mode | Guide Multiple Setups Component Testing | Guide Visual Regression Testing Trace View ARIA Snapshots | Guide Command Line Interface | Guide Test Filtering | Guide Test Tags | Guide Test Context | Guide Test Environment | Guide Test Run Lifecycle | Guide Snapshot | Guide Mocking | Guide Parallelism | Guide Test Projects | Guide Reporters | Guide Coverage | Guide Testing Types | Guide Vitest UI | Guide In-Source Testing | Guide Test Annotations | Guide Extending Matchers | Guide IDE Integrations | Guide Debugging | Guide Common Errors | Guide Migration Guide | Guide Open Telemetry Support {#open-telemetry-support} Mocking Dates Mocking Functions Mocking Globals Mocking Modules Mocking the File System Mocking Requests Timers Mocking Classes Profiling Test Performance Improving Performance Test describe Hooks Context API | Browser Mode Interactivity API | Browser Mode Locators | Browser Mode Assertion API | Browser Mode Commands | Browser Mode vitest-browser-react vitest-browser-vue vitest-browser-svelte Vitest API TestProject TestSpecification TestCase TestSuite TestModule TestCollection Plugin API Runner API advanced Reporters Task Metadata advanced Test Artifacts assert assertType detectAsyncLeaks | Config expect expectTypeOf Mocks Remove UnoCSS - Migration Complete Untitled update | Config Using Plugins | Guide Vi ## What is Vitest's llms.txt? Vitest publishes an `/llms.txt` file that provides AI systems with a structured index of its documentation. It follows the [llms.txt specification](https://llmstxt.org), organizing links to guides, API references, and tutorials under section headings so that LLMs like ChatGPT, Claude, and Gemini can quickly understand what Vitest offers and where to find details. Issues Spec 1 Sections 185 Links 9.8 KB Size ~2.5k Tokens Sections: Table of Contents ## Add Vitest Docs to Your AI Assistant Select your tool to see how to add Vitest's llms.txt as a documentation source. Cursor Windsurf Claude Code ChatGPT Zed Copilot 1. 1 Open any chat or composer panel 2. 2 Type @Docs and select "Add new doc" 3. 3 Paste the URL: https://www.vitest.dev/llms.txt 4. 4 Wait for the green dot (indexing complete) 5. 5 Reference @Docs in chat when asking about Vitest Cursor crawls the URL and indexes all subpages. Add a trailing slash to index child pages too. ## Spec Compliance 15 errors ## Frequently Asked Questions Where is Vitest's llms.txt file? Vitest publishes its llms.txt at https://www.vitest.dev/llms.txt. This file provides a structured, markdown-formatted index of Vitest's documentation that AI systems can consume to understand the project's APIs, guides, and references. How do I use Vitest's llms.txt with AI coding assistants? Copy the llms.txt content and paste it into your AI assistant (Cursor, Windsurf, Claude, ChatGPT) as context. This gives the AI an accurate map of Vitest's documentation so it can provide better code suggestions and answers about Vitest. What does Vitest's llms.txt contain? Vitest's llms.txt contains 1 sections and 185 documentation links in 9.8 KB (~2.5k tokens). Key sections include Table of Contents. How many tokens does Vitest's llms.txt use? The concise llms.txt index is approximately 2.5k tokens (9.8 KB). Most AI assistants can fit this within their context window. For the full expanded documentation, look for an llms-full.txt variant which embeds all content inline. What is Vitest? Next generation testing framework. Vitest's llms.txt file helps AI systems understand this by providing a structured overview of its documentation, making it easier for developers to get accurate AI-assisted help when working with Vitest. Can I generate an llms.txt for my own project? Yes. Use the free llms.txt generator at mdream.dev/tools/llms-txt/generator to crawl your site and produce a spec-compliant llms.txt file. You can also validate existing files with the llms.txt validator. ## Browse More llms.txt Files [Rspack A fast Rust-based web bundler](https://mdream.dev/llms-txt/vitest/llms-txt/rspack) [Vite Next generation frontend tooling](https://mdream.dev/llms-txt/vitest/llms-txt/vite) [Deno The next-generation JavaScript runtime](https://mdream.dev/llms-txt/vitest/llms-txt/deno) [Panda CSS CSS-in-JS with build-time generated styles](https://mdream.dev/llms-txt/vitest/llms-txt/panda-css) [Prettier Opinionated code formatter](https://mdream.dev/llms-txt/vitest/llms-txt/prettier) [React Spectrum Adobe's collection of libraries and tools for building adaptive, accessible UIs](https://mdream.dev/llms-txt/vitest/llms-txt/react-spectrum) [tRPC End-to-end typesafe APIs made easy](https://mdream.dev/llms-txt/vitest/llms-txt/trpc) [daisyUI The most popular component library for Tailwind CSS](https://mdream.dev/llms-txt/vitest/llms-txt/daisyui) [View all 99 projects ](https://mdream.dev/llms-txt/vitest/llms-txt) ## Related Tools [

llms.txt Generator

Generate an llms.txt for your own project.](https://mdream.dev/llms-txt/vitest/tools/llms-txt/generator) [

llms.txt Validator

Validate your llms.txt against the official spec.](https://mdream.dev/llms-txt/vitest/tools/llms-txt/validator) © 2026 [Harlan Wilton](https://github.com/harlan-zw) · [MIT](https://github.com/harlan-zw/mdream/blob/main/license) [GitHub](https://github.com/harlan-zw/mdream) [Discord](https://discord.com/invite/275MBUBvgP)