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.
hyperdxioCursor rulehyperdxio/hyperdx/.cursor/rules/playwright.mdc
HyperDX Playwright E2E test conventions for writing, reviewing, and fixing tests. Use when creating, editing, or debugging any E2E test in this project.
No other project uses it yet
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/common-testing.md
Testing requirements: 80% coverage, TDD workflow, test types
Steady17 mentions in 2 weeks
20 projects use a version of this
appsmithorgReads credentialsCursor ruleappsmithorg/appsmith/.cursor/rules/playwright.mdc
Playwright E2E test conventions — POM design, assertions, selectors, test structure
Chia-NetworkCursor ruleChia-Network/chia-blockchain/.cursor/rules/testing-guide.mdc
Chia test harness routing — pick the right guide and harness before writing tests
No other project uses it yet
novuhqReads credentialsCursor rulenovuhq/novu/.cursor/rules/safe-api-tests.mdc
NEVER run apps/api mocha tests without NODE_ENV=test — drops dev MongoDB
datahub-projectCursor ruledatahub-project/datahub/.cursor/rules/test-review.mdc
DataHub test review — use when asked to review, check, validate, or audit smoke tests
Steady5 mentions in 2 weeks
No other project uses it yet
jdxReads credentialsCursor rulejdx/mise/.cursor/rules/testing.mdc
how to test the mise codebase
No other project uses it yet
osqueryCursor ruleosquery/osquery/.cursor/rules/build-format.mdc
Build, test, and format
Steady3 mentions in 2 weeks
No other project uses it yet
triggerdotdevCursor ruletriggerdotdev/trigger.dev/.cursor/rules/writing-tests.mdc
How to write tests in the monorepo
Steady8 mentions in 2 weeks
No other project uses it yet
BasedHardwareCursor ruleBasedHardware/omi/.cursor/rules/backend-testing.mdc
Backend testing requirements
No other project uses it yet
novuhqCursor rulenovuhq/novu/.cursor/rules/testing.mdc
Rules for writing and running tests
surrealdbCursor rulesurrealdb/surrealdb/.cursor/rules/surrealql-language-tests.mdc
SurrealQL language testing guidelines
No other project uses it yet
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/golang-testing.md
Go testing extending common rules
Steady17 mentions in 2 weeks
20 projects use a version of this
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/kotlin-testing.md
Kotlin testing extending common rules
Steady17 mentions in 2 weeks
17 projects use a version of this
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/php-testing.md
PHP testing extending common rules
Steady17 mentions in 2 weeks
19 projects use a version of this
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/python-testing.md
Python testing extending common rules
Steady17 mentions in 2 weeks
20 projects use a version of this
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/swift-testing.md
Swift testing extending common rules
Steady17 mentions in 2 weeks
20 projects use a version of this
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/typescript-testing.md
TypeScript testing extending common rules
Steady17 mentions in 2 weeks
20 projects use a version of this
tw93Cursor ruletw93/Mole/.cursor/rules/mole-test-safety.mdc
Mole test safety and verification defaults
No other project uses it yet
HumanSignalCursor ruleHumanSignal/label-studio/.cursor/rules/cypress_tests.mdc
Writing and updating cypress integration 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.
