Find the best CLAUDE.md, AGENTS.md and Claude skills

AppleSkill

servicetalk-testing

apple/servicetalk/.agents/skills/servicetalk-testing/SKILL.md

How tests are written in the ServiceTalk repository: assertion style, naming, the reactive and transport test harnesses, test doubles, and what to verify before claiming a change is done. Use when adding or changing any test, or when diagnosing a failing, flaky, or hanging test.

NanmiCoderReads credentialsSkill

plugin-test

NanmiCoder/dsh-agent-teams/skills/plugin-test/SKILL.md

Use when writing or reviewing tests for DeepSeek Harness plugins, external DSH plugin packages, or package changes in the deepseek-harness repository. Select the minimum sufficient levels from unit tests, coverage, real-API end-to-end tests, snapshots, Web tests, real compositions, and built-artifact smoke tests. For Harness version migrations, use this Skill's built-in seven-touchpoint test workflow and validate the exact target-version runtime.

sgl-projectSkill

ci-test-audit

sgl-project/sglang/.agents/skills/ci-test-audit/SKILL.md

Audit the existing test tree and CI configuration for improvements, using a catalog of patterns previously applied in this repo. Use when asked to audit tests or CI, shrink CI time or cost, find redundant or misplaced tests, clean up a test group, or review whether a CI change follows established practice.

JetBrainsSkill

build-tools-bump-gradle-in-tests

JetBrains/kotlin/.claude/skills/build-tools-bump-gradle-in-tests/SKILL.md

Bump the maximum supported Gradle version in the `kotlin-gradle-plugin-integration-tests` project. Use this whenever the user asks to bump Gradle in integration tests, add a new Gradle X.Y.Z to the test matrix, update `MAX_SUPPORTED` Gradle, "run tests against the new Gradle release", or anything else that sounds like extending the integration test matrix to a newer Gradle. The procedure spans four touch points across three files that must stay in lock-step (`TestVersions.kt`, `build.gradle.kts`, `GradleCompatibilityIT.kt`); reach for this skill even when the user mentions only one of those files, because editing by hand routinely desyncs them.

OpenAISkill

testing-data-visualizations

openai/plugins/plugins/build-web-data-visualization/skills/testing-data-visualizations/SKILL.md

Test data visualizations and dashboards. Use when the user needs chart or diagram test strategy, screenshot or image diff testing, visual regression, mocked or synthetic chart data, component or unit tests, E2E dashboard QA, interactive UML-like diagram verification, scroll-driven story verification, export verification, or guidance on avoiding brittle over-testing.

primerSkill

component-testing

primer/react/.agents/skills/component-testing/SKILL.md

Use when authoring, modifying, reviewing, or debugging Primer React component and hook tests in Vitest browser mode. Do not use for Node/SSR tests, standalone Playwright visual or accessibility tests, or component implementation without test changes.

No other project uses it yet

OpenAISkill

running-tests

openai/openai-dotnet/.github/skills/running-tests/SKILL.md

Guide for running tests in the openai-dotnet repository. Use this when asked to run, debug, or validate tests, or when writing new tests. Explains test modes (Playback, Record, Live), how to identify recorded vs non-recorded tests, environment variable configuration, and what to do when recordings are missing or stale.

dotnetReads credentialsSkill

test-scenario-env

dotnet/runtime/.github/skills/test-scenario-env/SKILL.md

Generate a CoreRun-compatible .env file for a named CoreCLR test scenario defined by src/tests/Common/testenvironment.proj. Optionally merge the effective common and target-specific environment items from a specific src/tests project. USE FOR: "create an env file for jitstress1", "show the environment for this test under gcstress0xc", or scenario-aware standalone test repro generation. DO NOT USE FOR: library test scenarios, arbitrary user-defined environment files, or mobile, browser, WASI, Mono, and NativeAOT test hosting.

OffchainLabsSkill

test

OffchainLabs/prysm/.agents/skills/test/SKILL.md

Run Prysm unit tests with Bazel for affected packages, or a given target.

NVIDIASkill

mcore-onboard-gb200-1node-tests

NVIDIA/Megatron-LM/skills/mcore-onboard-gb200-1node-tests/SKILL.md

Onboard 1-node GitHub MR functional tests for GB200 from existing mr-scoped 2-node tests. Use when adding GB200 github-mr tests; creating single-node variants of existing tests; expanding CI coverage for GB200; 'add GB200 MR tests', 'onboard GB200 1-node', 'create single-node variant'. Optionally takes the model YAML type (`gpt`, `moe`, or both, default both) as its argument.

superplanehqSkill

test-audit

superplanehq/superplane/.agents/skills/test-audit/SKILL.md

Invoke whenever writing, changing, reviewing, or sweeping tests. Authoring gate for new tests plus audit workflow for low-value, implementation-coupled, or duplicative tests and the test-only production seams they demand.

garrytanSkill

test-audit

garrytan/gstack/test-audit/SKILL.md

Find low-value or duplicate tests and the test-only code they keep alive. (gstack)

MicrosoftSkill

visual-test

microsoft/fluentui/.claude/skills/visual-test/SKILL.md

@../../../.agents/skills/visual-test/SKILL.md

BelphemurSkill

App Rules testing

Belphemur/SoundSwitch/.agents/skills/app-rules-testing/SKILL.md

Test the App Rules identity-based assignment feature — unit fixtures, a live-app control script, and an end-to-end test that drives the real Settings UI, Windows' per-app endpoint store, and the restore-default. Use this when working on AppRuleEnforcement, the assignment ledger/reconciler, the rule editor's eligibility note, or reviewing such changes.

SonarSourceSkill

test-rule

SonarSource/SonarJS/.claude/skills/test-rule/SKILL.md

Write and run tests for a SonarJS rule. Use when working on rule tests, writing test fixtures, or running unit tests for a specific rule.

dartsimSkill

dart-test

dartsim/dart/.agents/skills/dart-test/SKILL.md

DART Test: unit tests, integration tests, CI validation, and debugging

No other project uses it yet

dartsimSkill

dart-test

dartsim/dart/.claude/skills/dart-test/SKILL.md

DART Test: unit tests, integration tests, CI validation, and debugging

No other project uses it yet

DevolutionsSkill

test-oracle-reviewer

Devolutions/IronRDP/.agents/skills/test-oracle-reviewer/SKILL.md

Judge whether a test's expected value is justified independently of the code under test, and define the `oracle:` marker that records its source. Use when reviewing tests added or changed in a pull request, auditing a module's tests, marking a test's source, or whenever expected bytes, snapshots, or mock values may have been copied from the implementation's own output.

No other project uses it yet

quarkusioSkill

building-and-testing

quarkusio/quarkus/.agents/skills/building-and-testing/SKILL.md

How to build and test Quarkus: Maven commands, build flags, incremental builds, justfile aliases, and important build rules.

zalandoSkill

test

zalando/skipper/.agents/skills/tests/SKILL.md

Create tests that fit skipper code