The rules real projects give Cursor's agent, from .cursor/rules.
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.
ctxr-devCursor rulectxr-dev/llm-wiki-memory/.cursor/rules/testing.mdc
Testing rules for llm-wiki-memory — node:test harness conventions, mock-provider seams, the /tmp/lwm-* leak trap. Canonical file is .agents/rules/testing.md.
ArenukvernCursor ruleArenukvern/mcp_flutter/.cursor/rules/test_use_tdd.mdc
when writiing tests or mentioning TDD
simstudioaiCursor rulesimstudioai/sim/.cursor/rules/sim-testing.mdc
Test layers, naming, and Vitest mechanics for Sim
Steady23 mentions in 2 weeks
No other project uses it yet
OpnFormCursor ruleOpnForm/OpnForm/.cursor/rules/back-end-testing.mdc
Laravel Back-end Tests
No other project uses it yet
dotneetCursor ruledotneet/aica/.cursor/rules/test.mdc
use bun for test
IamLiuLvCursor ruleIamLiuLv/compoder/.cursor/rules/storybook-test/StorybookGenerationOrchestrator.mdc
compoder storybook-test
keymapperorgCursor rulekeymapperorg/KeyMapper/.cursor/rules/keymapper-build-and-tooling.mdc
Build, test, and tooling commands for KeyMapper
VercelCursor rulevercel/workflow/.cursor/rules/workflow-deployment.mdc
Workflow testing and deployment process guide
xu-xiangCursor rulexu-xiang/everything-claude-code-zh/.cursor/rules/swift-testing.md
Swift 测试（Swift Testing）扩展了通用规则
AutomatticCursor ruleAutomattic/wp-calypso/.cursor/rules/dashboard-testing.mdc
Rules for writing tests for dashboard screen / components
No other project uses it yet
boundlesslightbringerCursor ruleboundlesslightbringer/novelwriter/.cursor/rules/test-patterns.mdc
Test fixture and assertion patterns. Auto-attach when editing test_*.py
brendadeeznuts1111Cursor rulebrendadeeznuts1111/betting-brain-v3/.cursor/rules/testing.mdc
Testing conventions and patterns
SentryCursor rulegetsentry/sentry-java/.cursor/rules/e2e_tests.mdc
Java SDK End to End Tests
Steady2 mentions in 2 weeks
No other project uses it yet
dasherswCursor ruledashersw/gea/.cursor/rules/playwright-testing.mdc
How to run Playwright tests for example apps
No other project uses it yet
hatchet-devCursor rulehatchet-dev/hatchet/.cursor/rules/typescript-e2e-tests.mdc
Running and writing TypeScript SDK e2e tests
Steady14 mentions in 2 weeks
No other project uses it yet
tounsilsCursor ruletounsils/claude-code-skills/.cursor/rules/root-cause.mdc
Debug by reproducing first, isolating the mechanism, then fixing the cause rather than the symptom, and keeping the reproduction as a regression test. Use when asked to debug this, fix this bug, find out why something happens, investigate a failure, or work out what is going wrong, and when a test fails intermittently or flakily, behavior differs between environments, or someone proposes raising a timeout, adding a retry, or skipping a test to make a problem go away.
elementorCursor ruleelementor/elementor/.cursor/rules/tests-code-style.mdc
Technical testing rules and code quality standards
No other project uses it yet
thedaviddiasCursor rulethedaviddias/llms-txt-hub/.cursor/rules/testing.mdc
Rules for writing Jest tests in TypeScript
Jailsom-NogueiraCursor ruleJailsom-Nogueira/nextjs-bootstrap-template/.cursor/rules/30-tests.mdc
Vitest + RTL unit tests, Playwright e2e — determinism, no skipped tests, MSW where needed
storybookjsCursor rulestorybookjs/storybook/.cursor/rules/spy-mocking.mdc
Rules for consistent and type-safe mocking in Vitest tests
No other project uses it yet
Instruction files for Cursor's agent, kept in .cursor/rules/ as .mdc files.
A rule can apply only to files matching a pattern, or only when the agent asks for it. AGENTS.md always applies.
Copy the .mdc file into your project's .cursor/rules/ directory and adjust its globs.
Open a rule to see its discussion. Reports from people and their agents are coming.
