Use when a developer wants to add, write, or create an end-to-end test for an Opik feature, page, or branch — e.g. "add an e2e test for the experiments comparison page", "write a test for the feature I just built", "e2e test for this branch", "cover the dataset items flow with a test". Runs the full loop in tests_end_to_end/e2e/ — analyze the feature and frontend code, explore the live UI with the Playwright MCP, write the Page Object Model + spec, and run it locally until green.
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2 projects use a version of this
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Read before running tests. Detailed instructions for single tests, full suites, authentication, obtaining the API Token, and a real cross-test pollution pitfall. Use this when asked to run tests, check failures, or debug failing tests.
7.4k35d agoReviewMountCreate a free account to mount
Grade a curated list of individual tests for readiness, A-F quality, and concrete improvements. ALWAYS USE FOR: grade tests, review only a named test, per-test readiness decisions, or quality bands for supplied methods, bodies, file spans, or bounded PR diffs, including existing tests. Produce a PR-ready Pass, Failed, Uncertain, or Not applicable table; unresolved or empty scopes omit the grade. Compose read-only per-test mutation evidence when available. Polyglot: .NET, Python, TS/JS, Java, Go, Ruby, Rust, Swift, Kotlin, PowerShell, C++. DO NOT USE FOR: suite-wide audits (test-engineer or test-anti-patterns), writing or fixing tests, or measuring coverage.
1.1k37d agoReviewMountCreate a free account to mount
Provides JavaScript/TypeScript test file structure and patterns for SonarJS rule testing. Use when writing tests, understanding test structure, or debugging test failures.
1.3k54d agoReviewMountCreate a free account to mount
LoongCollector E2E Testing Framework Development Guide. Use this rule when you need to understand E2E testing framework architecture, develop new test behavior functions, or extend testing capabilities. Contains detailed BDD testing framework usage, test behavior function development and registration workflows, and comprehensive reference of existing testing capabilities. Example: When adding custom test behaviors for new plugins, use this rule to understand how to write and register new test functions. Example: When developing E2E tests, use this rule to understand the e2e framework.
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Run or add ScottPlot 5 tests. Use for unit-test and cookbook-test work; unless explicitly asked otherwise, restrict manual test execution to the Unit Tests and Cookbook projects.
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Use when a developer wants to add a visual regression (screenshot) test for an Opik UI page or panel — e.g. "add a visual test for the trace sidebar", "screenshot each tab of the dataset panel", "visual regression test for the new empty state". Covers the page-object pattern, seeding via the test-helper-service, unique screenshot naming, per-test masking, baseline (re)generation, and the local-run-until-stable loop in tests_end_to_end/visual-tests/.
Steady7 mentions in 2 weeks
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Use when running VS Code smoke tests or working on smoke-test CI steps. Covers pnpm run smoketest / smoketest-no-compile, grep filtering tests, and a temporary repeat-loop technique for tracking down flaky smoke tests in CI.
Steady+17 stars this week
5 projects use a version of this
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When the user wants to plan, design, or implement an A/B test or experiment. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis," "should I test this," "which version is better," "test two versions," "statistical significance," or "how long should I run this test." Use this whenever someone is comparing two approaches and wants to measure which performs better. For tracking implementation, see analytics-tracking. For page-level conversion optimization, see page-cro.
Write tests that pin real behavior instead of implementation details, config values, or lucky samples. Use when adding tests for new behavior, writing a regression test, fixing a brittle or flaky test, reviewing a test diff, or when a test breaks after a refactor or config change that didn't change behavior.
Jest testing patterns, factory functions, mocking strategies, and TDD workflow. Use when writing unit tests, creating test factories, or following TDD red-green-refactor cycle.
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@^4.1.0 and @effect/vitest. Do not use for Python-only checks.
Steady6 mentions in 2 weeks
2 projects use a version of this
31k10d agoReviewMountCreate a free account to mount
LoongCollector E2E Testing Framework Development Guide. Use this rule when you need to understand E2E testing framework architecture, develop new test behavior functions, or extend testing capabilities. Contains detailed BDD testing framework usage, test behavior function development and registration workflows, and comprehensive reference of existing testing capabilities. Example: When adding custom test behaviors for new plugins, use this rule to understand how to write and register new test functions. Example: When developing E2E tests, use this rule to understand the e2e framework.
2.2k5mo agoReviewMountCreate a free account to mount
E2E Testing Standards Guide. Use this rule when you need to write or execute E2E tests, including test naming conventions, test workflows, and test behavior templates. This rule should be used for end-to-end integration testing scenarios to ensure test standardization and maintainability. Example: When writing new E2E tests, use this rule to ensure proper test format and workflow compliance.
2.2k5mo agoReviewMountCreate a free account to mount
How to run Wealthfolio E2E tests correctly. Use this skill whenever you are about to run, execute, or trigger Playwright E2E tests — including running a single spec file, the full test suite, or checking whether E2E tests pass. Also use it when setting up the environment for E2E tests or troubleshooting E2E test failures. Do NOT skip this skill just because the task seems simple — the environment setup is mandatory and skipping it leads to silent failures.
Steady5 mentions in 2 weeks
4 projects use a version of this
9.4k10mo agoReviewMountCreate a free account to mount
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.
comet-mlSkill
