MicrosoftSkillpython-testing
microsoft/agent-framework/python/.github/skills/python-testing/SKILL.md
Guidelines for writing and running tests in the Agent Framework Python codebase. Use this when creating, modifying, or running tests.
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MicrosoftSkill
langgeniusSkillfrontend-testing
langgenius/dify/.agents/skills/frontend-testing/SKILL.md
Use when writing or changing Vitest or React Testing Library tests under `web/` or `packages/dify-ui/`, or when the user explicitly requests frontend test strategy, including evaluation of an existing strategy. Do not use for frontend code-review-only requests, general testability discussion, Python tests, or Cucumber/Playwright E2E.
ag-ui-protocolSkillagui-dotnet-unit-tests
ag-ui-protocol/ag-ui/.github/skills/agui-dotnet-unit-tests/SKILL.md
Author unit tests for the AG-UI .NET SDK (the *.UnitTests projects), following the SDK's serialization and compatibility conventions. USE FOR: adding unit-test coverage for a new type/method in AGUI.Abstractions/Formatting/Protobuf/Client/Server, event serialization round-trips, JsonDocument property-name assertions, backward-compatibility fixtures against TypeScript JSON, protobuf codec round-trips, client builder/handler tests, server ChatResponseUpdate conversion tests, SSE formatter tests. DO NOT USE FOR: HTTP pipeline / WebApplicationFactory end-to-end tests (use the agui-dotnet-integration-tests skill), cross-language TS↔C# server-parity tests (use the cross-language test skill).
ElasticSkillflaky-test-investigator
elastic/kibana/.agents/skills/flaky-test-investigator/SKILL.md
Investigate Scout and FTR flaky test failures in Kibana. Use when triaging a failed-test issue, a Buildkite-reported failure, a test path that has been failing intermittently, or any time the user asks to look at a flaky test, deflake a test, or stabilize a test.
PostHogSkillfixing-flaky-tests
PostHog/posthog/.agents/skills/fixing-flaky-tests/SKILL.md
Guides an agent through reproducing, root-causing, fixing, and validating flaky tests in the PostHog monorepo. Use when a test fails intermittently in CI but passes on rerun or locally, when `hogli ci:insights` or the debugging-ci-failures skill classifies a failure as a flaky test, when given a GitHub Actions URL for a flaky job, when asked to check Trunk Flaky Tests for a test, PR, or master, or when asked to deflake, stabilize, or fix a flaky Jest, pytest, or Playwright test. Core discipline: reproduce locally before changing anything, fix the root cause (never mask it with sleeps, retries, or bigger timeouts), and prove the fix with an N-run validation loop sized to the observed failure rate. Stabilizing is not the only valid outcome — the skill also gates whether the test should exist, so deleting a test that catches nothing real, or re-leveling one that flakes because of the level it runs at, are first-class endings.
NVIDIASkilltrtllm-test-specialist
NVIDIA/TensorRT-LLM/.claude/skills/trtllm-test-specialist/SKILL.md
Runs model-level and module-level tests for TensorRT-LLM. First classifies the test scope (module test or model test), then dispatches to the appropriate workflow. Model tests are further classified by type (functionality/smoke test, benchmark, or evaluation). Prompts the user for parallelism parameters (tp, ep, dp), dataset paths, device type, or a config file as needed. All test execution is delegated to trtllm-case-executor.
OpenAISkillremote-tests
openai/codex/.codex/skills/remote-tests/SKILL.md
Testing against remote executors in integration tests.
PostHogSkillmaintaining-python-tests
PostHog/posthog/.agents/skills/maintaining-python-tests/SKILL.md
Maintains existing pytest and Django test suites without weakening correctness. Use when asked to reduce Python test runtime or CI work, investigate slow pytest families, remove stale migration tests, consolidate repeated setup, improve Python test ownership, or measure whether a test optimization worked after merge. Ranks work by measured cost, applies the writing-tests value gate to existing coverage, preserves distinct behavior cases, validates isolation after shared-fixture changes, and separates testcase work from pytest-suite wall time. For an intermittent failure, use fixing-flaky-tests instead.
omnigent-aiSkillrun-load-test
omnigent-ai/omnigent/.claude/skills/run-load-test/SKILL.md
Run the Omnigent load test and produce a results file explaining the latencies. Load when the user wants to load-test / stress-test / benchmark Omnigent under concurrency ("load test omnigent", "stress test the server", "how many hosts/sessions/turns can it handle", "load test real agent turns / conversations", "run a load test"). The test makes each simulated user a real omnigent host that creates host-bound sessions and drives real multi-turn conversations with a mocked LLM; it boots its own local stack (dev/loadtest/run.py). Gather inputs, run it, then read the generated summary.md and explain the latency distribution (avg/median/p95/p99, throughput, failures). NOT for single-request latency micro-benchmarks (that is dev/benchmarks/).
ElasticSkillscout-ui-testing
elastic/kibana/.agents/skills/scout-ui-testing/SKILL.md
Use when creating, updating, debugging, or reviewing Scout UI tests in Kibana (Playwright + Scout fixtures), including page objects, browser authentication, parallel UI tests (spaceTest/scoutSpace), a11y checks, and flake control.
Significant-GravitasSkillwrite-frontend-tests
Significant-Gravitas/AutoGPT/.claude/skills/write-frontend-tests/SKILL.md
Analyze the current branch diff against dev, plan integration tests for changed frontend pages/components, and write them. TRIGGER when user asks to write frontend tests, add test coverage, or 'write tests for my changes'.
JetBrainsSkillwriting-tests
JetBrains/intellij-community/.agents/skills/writing-tests/SKILL.md
Write IntelliJ JUnit 5 tests with fixtures, lifecycle, and EDT.
JetBrainsSkillwriting-tests
JetBrains/intellij-community/.claude/skills/writing-tests/SKILL.md
Write IntelliJ JUnit 5 tests with fixtures, lifecycle, and EDT.
lobehubSkillagent-testing-bot
lobehub/lobehub/.agents/skills/agent-testing-bot/SKILL.md
Use for real bot-channel acceptance in Discord, Slack, Telegram, WeChat/Weixin, Lark/Feishu, QQ or iMessage on macOS. Extends acceptance with native chat apps.
Significant-GravitasSkillpr-test
Significant-Gravitas/AutoGPT/.claude/skills/pr-test/SKILL.md
E2E manual testing of PRs/branches using docker compose, agent-browser, and API calls. TRIGGER when user asks to manually test a PR, test a feature end-to-end, or run integration tests against a running system.
SentrySkillgenerate-snapshot-tests
getsentry/sentry/.agents/skills/generate-snapshot-tests/SKILL.md
Generate snapshot test files for Sentry frontend React components. Use when asked to "generate snapshot tests", "add snapshot tests", "create visual snapshots", "write snapshot tests", "add visual regression tests", or "snapshot this component". Accepts an optional component path or name via $ARGUMENTS.
MicrosoftSkillort-test
microsoft/onnxruntime/.github/skills/ort-test/SKILL.md
Run ONNX Runtime tests. Use this skill when asked to run tests, debug test failures, or find and execute specific test cases in ONNX Runtime.
GitHubSkillspring-boot-testing
github/awesome-copilot/skills/spring-boot-testing/SKILL.md
Expert Spring Boot 4 testing specialist that selects the best Spring Boot testing techniques for your situation with Junit 6 and AssertJ.
MicrosoftSkillsmoke-tests
microsoft/vscode/.github/skills/smoke-tests/SKILL.md
Use when running VS Code smoke tests or working on smoke-test CI steps. Covers npm run smoketest / smoketest-no-compile, grep filtering tests, and a temporary repeat-loop technique for tracking down flaky smoke tests in CI.
ComposioHQSkilltypescript-testing
ComposioHQ/composio/.agents/skills/typescript-testing/SKILL.md
Select and run TypeScript SDK verification for packages, examples, type checks, linting, builds, Vitest suites, Effect v4 CLI tests, and runtime E2E tests. Use when adding tests, diagnosing TypeScript CI, choosing a focused test command, validating TypeScript package changes, or writing/porting CLI tests against effect@4.0.0-rc.115 and @effect/vitest. Do not use for Python-only checks.
Agent instruction files
What are agent instruction files?
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 or AGENTS.md?
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.
What is a skill?
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.
Can I search my own team's files too?
Your agents already can, over MCP, limited to the files you're allowed to read. Searching them from this page is coming.