One search for your own team's files and the public ecosystem. See how real projects write their agent instructions, and bring the good ideas home.
Files you open will collect here, so you can find them again.
Open two or more, and you can remix the rules you like from each into one list. Kept in this browser only.
morlutoSkillmorluto/rea/.agents/skills/rea-ci-tests-audit/SKILL.md
Audit REA CI and test suites for correctness, fixture drift, false passes, and measured performance; use for suite or workflow investigations and efficiency changes, rather than ordinary feature testing or a single test failure.
6 projects use a version of this
Often used withrea-analysis-optimization
MicrosoftSkillmicrosoft/vscode/.github/skills/ci-artifact-testing/SKILL.md
Use when validating an upstream pull request or dependency fix against VS Code tests using GitHub Actions CI build artifacts instead of building locally. Covers finding compatible binaries, verifying PR and merge-commit provenance, selecting a candidate runtime or build, comparing unchanged regression tests, and restoring the baseline.
Steady+17 stars this week
No other project uses it yet
moltbotSkillmoltbot/clawdbot/.agents/skills/test-audit/SKILL.md
Writing/changing/reviewing/sweeping tests: reject duplicate or implementation-coupled proof; remove test-only production seams.
Surging+2 new adopters in 4 weeks
80 projects use a version of this
MicrosoftSkillmicrosoft/TypeScript/.github/skills/compiler-and-fourslash-tests/SKILL.md
How to write, run, and debug compiler tests and fourslash (LSP) tests in the TypeScript repository. Covers test file formats, directives, markers, baseline management, and the fourslash verification API.
No other project uses it yet
MicrosoftSkillmicrosoft/PowerToys/.github/skills/ui-tests-migration/SKILL.md
Create, migrate, and stabilize PowerToys UI tests with Microsoft.PowerToys.UITest.Next and winappcli, through local VM success, commit/push, and CI validation. Use for ports, new UITest projects, flaky CI tests, persistent Hyper-V validation, Settings IPC authentication/test signing, Explorer/Shell selection, preview handlers, thumbnail providers, hotkey activation, stateful process lifecycle, composed WinUI/WebView visual baselines, or foreground failures. Covers APIs, scaffolding, test design, diagnostics, and the required handoff to ui-tests-pipeline-ci. Keywords: UI test, UITests, UITestAutomation.Next, winappcli, WinAppDriver, Selenium, Settings IPC, not-microsoft-signed, Authenticode, local VM, Hyper-V, checkpoint, migrate, flaky, CI stability, Explorer, Shell extension, WebView2.
garrytanSkillgarrytan/gstack/test-audit/SKILL.md
Find low-value or duplicate tests and the test-only code they keep alive. (gstack)
Cooling13 mentions in 2 weeks
80 projects use a version of this
DeepSeekReads credentialsSkilldeepseek-ai/deepseek-harness/.agents/skills/dsh-ci-test-reliability/SKILL.md
Design, review, and diagnose DeepSeek Harness tests and fixtures that can fail nondeterministically under CI concurrency, shared host resources, clocks, process-global state, subprocesses, network listeners, or asynchronous teardown. Use when adding or changing tests with those risks, investigating flaky CI, or reviewing test isolation; use dsh-pre-push-checks separately to select outgoing commands.
Steady3 mentions in 2 weeks
6 projects use a version of this
MicrosoftSkillmicrosoft/vscode/.github/skills/unit-tests/SKILL.md
Use when running unit tests in the VS Code repo. Covers the runTests tool, scripts/test.sh (macOS/Linux) and scripts/test.bat (Windows), and their supported arguments for filtering, globbing, and debugging tests.
Steady+17 stars this week
16 projects use a version of this
NousResearchSkillNousResearch/hermes-agent/skills/software-development/test-driven-development/SKILL.md
TDD: enforce RED-GREEN-REFACTOR, tests before code.
189 projects use a version of this
Often used withchinese-code-reviewdiagnosing-superpowersusing-agent-skills
MicrosoftReads credentialsSkillmicrosoft/vscode/.github/skills/agent-host-e2e-tests/SKILL.md
Use when writing, recording, updating, validating, or troubleshooting Agent Host end-to-end and real-provider integration tests under src/vs/platform/agentHost/test/node/e2e and providerIntegration. Covers adding a cross-provider test, re-recording fixtures after an SDK bump, required cross-platform Azure validation, gating non-deterministic or platform-specific tests, and diagnosing replay cache misses.
Steady+17 stars this week
1 project uses a version of this
addyosmaniSkilladdyosmani/agent-skills/skills/test-driven-development/SKILL.md
Drives development with tests using the red-green-refactor loop. Use when implementing any logic, fixing any bug, or changing any behavior. Use when you need to prove that code works, when a bug report arrives, or when you're about to modify existing functionality. Use when asked to add tests to a function, fix a bug in it or change its behavior, even when the code is pasted inline and the request does not mention tests.
190 projects use a version of this
Often used withchinese-code-reviewdiagnosing-superpowersusing-agent-skills
SupabaseSkillsupabase/supabase/.agents/skills/studio-e2e-tests/SKILL.md
Write and run Playwright E2E tests for Supabase Studio (e2e/studio).
No other project uses it yet
SupabaseReads credentialsSkillsupabase/supabase/.agents/skills/studio-mock-api-tests/SKILL.md
Component tests for Supabase Studio that mock API requests at the
langflow-aiSkilllangflow-ai/langflow/.agents/skills/ibm-a11y-testing-guide/SKILL.md
Reference guide for writing and running Langflow frontend accessibility tests with axe (Jest) and IBM Equal Access (Playwright `page.runA11yScan`). Covers which engine/test layer to pick, the POUR checklist, axe-vs-IBM rule gaps, Radix/AG-Grid component gotchas, and IBM baselines. Use when writing or reviewing a11y tests, debugging a specific axe/IBM violation, or deciding which test layer fits a UI surface. Does not run scans, audit a whole surface, or fix a PR end-to-end — see ibm-a11y-route-scan, ibm-a11y-level1-audit, and ibm-a11y-pr-remediation for those.
No other project uses it yet
SupabaseSkillsupabase/supabase/.agents/skills/vitest/SKILL.md
Vitest API and config reference (Jest-compatible) — mocking with vi.*, spies, fake timers, coverage configuration, fixtures, snapshots, and test filtering. Use for Vitest API and configuration questions anywhere in the monorepo; for Studio-specific test strategy and component-test setup, start with studio-testing and studio-mock-api-tests.
42 projects use a version of this
moltbotSkillmoltbot/clawdbot/.agents/skills/openclaw-test-heap-leaks/SKILL.md
Investigate OpenClaw pnpm test memory growth, Vitest OOMs, RSS spikes, and heap snapshot deltas.
MicrosoftSkillmicrosoft/vscode/.github/skills/flaky-smoke-tests/SKILL.md
Diagnose intermittent VS Code Electron smoke-test failures from the Azure DevOps Flaky Smoke Tests pipeline (definition 700). Covers finding failed iterations, downloading task logs and platform artifacts with Azure CLI, correlating cumulative runner logs, tracing the introducing commit, and queueing focused validation runs.
Steady+17 stars this week
1 project uses a version of this
moltbotSkillmoltbot/clawdbot/.agents/skills/openclaw-test-performance/SKILL.md
Benchmark, diagnose, and optimize OpenClaw test and plugin-suite runtime, import hotspots, CPU/RSS, heap growth, and slow coverage paths.
clawdbotSkillclawdbot/clawdbot/.agents/skills/openclaw-test-performance/SKILL.md
Benchmark, diagnose, and optimize OpenClaw test and plugin-suite runtime, import hotspots, CPU/RSS, heap growth, and slow coverage paths.
molt-botSkillmolt-bot/clawdbot/.agents/skills/openclaw-test-performance/SKILL.md
Benchmark, diagnose, and optimize OpenClaw test and plugin-suite runtime, import hotspots, CPU/RSS, heap growth, and slow coverage paths.
Plain text files in a repository that tell a coding agent how the project works: commands to run, conventions to follow and things to avoid. CLAUDE.md, AGENTS.md, cursor rules and skills are the common kinds.
CLAUDE.md is read by Claude Code. AGENTS.md is an open format that Codex, Cursor and other agents read. Many projects keep one and point the other at it.
A folder with a SKILL.md that describes one capability, such as filling PDFs or reviewing code. The agent loads it only when the task calls for it.
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.
