MicrosoftCursor ruledata-formulator / rules
microsoft/data-formulator/.cursor/rules/backend-test-conventions.mdc
Backend Python test conventions (pytest)
No other project uses it yet
Cursor rules examples
The rules real projects give Cursor's agent, from .cursor/rules.
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MicrosoftCursor ruleMicrosoftCursor ruledata-formulator / rules
microsoft/data-formulator/.cursor/rules/frontend-test-conventions.mdc
Frontend TypeScript test conventions (Vitest)
grafanaCursor rulepyroscope / rules
grafana/pyroscope/.cursor/rules/go-testing.mdc
Go testing standards and patterns for Pyroscope
Steady2 mentions in 2 weeks
No other project uses it yet
simstudioaiCursor rulesim / rules
simstudioai/sim/.cursor/rules/sim-testing.mdc
Test layers, naming, and Vitest mechanics for Sim
Steady47 mentions in 2 weeks
No other project uses it yet
elie222Reads credentialsCursor ruleinbox-zero / rules
elie222/inbox-zero/.cursor/rules/e2e-testing.mdc
E2E Flow Tests setup and debugging guide
Steady10 mentions in 2 weeks
No other project uses it yet
AutomatticCursor rulewp-calypso / rules
Automattic/wp-calypso/.cursor/rules/dashboard-testing.mdc
Rules for writing tests for dashboard screen / components
No other project uses it yet
eyaltoledanoReads credentialsCursor ruleclaude-task-master / rules
eyaltoledano/claude-task-master/.cursor/rules/tests.mdc
Guidelines for implementing and maintaining tests for Task Master CLI
Coolinginterest down 70% this month
storybookjsCursor rulestorybook / rules
storybookjs/storybook/.cursor/rules/spy-mocking.mdc
Rules for consistent and type-safe mocking in Vitest tests
No other project uses it yet
appsmithorgCursor ruleappsmith / verification
appsmithorg/appsmith/.cursor/rules/verification/feature-verifier.mdc
Feature implementation checklist — requirements, code quality, testing, and documentation standards
appsmithorgCursor ruleappsmith / testing
appsmithorg/appsmith/.cursor/rules/testing/test-generator.mdc
Test conventions and examples for frontend (Jest/Cypress) and backend (JUnit) — file naming, frameworks, and patterns
appsmithorgCursor ruleappsmith / verification
appsmithorg/appsmith/.cursor/rules/verification/bug-fix-verifier.mdc
Bug fix quality checklist — reproduction, root cause analysis, testing, and regression prevention
MicrosoftCursor ruledata-formulator / rules
microsoft/data-formulator/.cursor/rules/incremental-development-cadence.mdc
Enforce step-by-step implementation with design-doc checks, tests, and i18n after each step
appsmithorgCursor ruleappsmith / rules
appsmithorg/appsmith/.cursor/rules/frontend.mdc
React frontend — TypeScript SPA, monorepo packages, Redux-Saga, key directories, testing, and build commands
No other project uses it yet
affaan-mCursor ruleECC / rules
affaan-m/ECC/.cursor/rules/common-agents.md
Agent orchestration: available agents, parallel execution, multi-perspective analysis
Steady12 mentions in 2 weeks
17 projects use a version of this
affaan-mCursor ruleECC / rules
affaan-m/ECC/.cursor/rules/common-development-workflow.md
Development workflow: plan, TDD, review, commit pipeline
Steady12 mentions in 2 weeks
19 projects use a version of this
affaan-mCursor ruleECC / rules
affaan-m/ECC/.cursor/rules/common-git-workflow.md
Git workflow: conventional commits, PR process
Steady12 mentions in 2 weeks
1 project uses a version of this
affaan-mCursor ruleECC / rules
affaan-m/ECC/.cursor/rules/common-patterns.md
Common patterns: repository, API response, skeleton projects
Steady12 mentions in 2 weeks
20 projects use a version of this
affaan-mCursor ruleECC / rules
affaan-m/ECC/.cursor/rules/php-hooks.md
PHP hooks extending common rules
Steady12 mentions in 2 weeks
17 projects use a version of this
affaan-mCursor ruleECC / rules
affaan-m/ECC/.cursor/rules/php-patterns.md
PHP patterns extending common rules
Steady12 mentions in 2 weeks
19 projects use a version of this
affaan-mCursor ruleECC / rules
affaan-m/ECC/.cursor/rules/swift-patterns.md
Swift patterns extending common rules
Steady12 mentions in 2 weeks
20 projects use a version of this
About cursor rules
What are cursor rules?
Instruction files for Cursor's agent, kept in .cursor/rules/ as .mdc files.
How are they different from AGENTS.md?
A rule can apply only to files matching a pattern, or only when the agent asks for it. AGENTS.md always applies.
How do I use one?
Copy the .mdc file into your project's .cursor/rules/ directory and adjust its globs.
Which ones worked?
Open a rule to see its discussion. Reports from people and their agents are coming.