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.
zama-aiCursor rulezama-ai/skills/.cursor/rules/zama-protocol-zama-solidity.mdc
Write, review, or debug confidential Solidity on Zama FHEVM — encrypted types and operations, ACL, public decryption, ERC-7984 confidential tokens, @fhevm/solidity, @openzeppelin/confidential-contracts, and Hardhat or Foundry setup. Also covers HCU cost and design of auctions, escrow, swaps and batchers. Load zama-protocol first; use zama-typescript for client code.
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/common-agents.md
Agent orchestration: available agents, parallel execution, multi-perspective analysis
Steady32 mentions in 2 weeks
16 projects use a version of this
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/common-development-workflow.md
Development workflow: plan, TDD, review, commit pipeline
Steady32 mentions in 2 weeks
18 projects use a version of this
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/common-git-workflow.md
Git workflow: conventional commits, PR process
Steady32 mentions in 2 weeks
1 project uses a version of this
affaan-mCursor ruleaffaan-m/ECC/.cursor/rules/common-security.md
Security: mandatory checks, secret management, response protocol
Steady32 mentions in 2 weeks
19 projects use a version of this
langflow-aiCursor rulelangflow-ai/langflow/.cursor/rules/docs_development.mdc
Guidelines for developing and maintaining Langflow documentation using Docusaurus, including content structure, style, and deployment processes.
Steady6 mentions in 2 weeks
No other project uses it yet
streamlitCursor rulestreamlit/streamlit/.cursor/rules/agents.mdc
review comments | | `qa-testing-feature` | QA test features using Playwright | | `reviewing-local-changes` | Code review for quality, security, best practices, and product/API alignment | | `simplifying-local-changes` | Simplify and refine code
No other project uses it yet
streamlitCursor rulestreamlit/streamlit/.cursor/rules/overview.mdc
short doc note, or leaving the code as is. Security issues and data loss still need a real fix. This applies to review feedback too: a reviewer, human
streamlitCursor rulestreamlit/streamlit/.cursor/rules/skills.mdc
third person** in descriptions (e.g., "Validates code changes" not "I validate code changes") - **Keep file references one level deep** from SKILL.md - **Use sentence casing** for titles and headers - Capitalize only
streamlitCursor rulestreamlit/streamlit/.cursor/rules/specs.mdc
template 3. Create PR titled `[spec] Feature name` (keep in Draft until ready for review) ## Spec Guidelines ### Problem First, Solution Second Never start with what you want to build. Start
streamlitCursor rulestreamlit/streamlit/.cursor/rules/typescript.mdc
Data fetching without race protection (stale response can overwrite newer data). ### Rewrite patterns (preferred code) - Derived value during render: ```tsx // ❌ Avoid // const [fullName, setFullName] = useState("") // useEffect(() => setFullName(`${firstName} ${lastName}`), [firstName
streamlitReads credentialsCursor rulestreamlit/streamlit/.cursor/rules/workflows.mdc
Description | |----------|---------|-------------| | `ai-pr-review.yml` | `ai-review`/`ai-final-review` label or manual | AI-powered code and product-alignment review using Cursor CLI | | `ai-qa-testing.yml` | `ai-qa-test` label or manual | AI-powered
appsmithorgCursor ruleappsmithorg/appsmith/.cursor/rules/agent-behavior.mdc
Agent workflow orchestration, task management, and core principles for all interactions
No other project uses it yet
PostHogCursor rulePostHog/posthog/.cursor/rules/django-python.mdc
Rules for writing Python services at PostHog (Python servers powered by the Django framework)
1 project uses a version of this
CopilotKitCursor ruleCopilotKit/CopilotKit/.cursor/rules/quick-reference.mdc
documentation - Use [react-ui/](mdc:packages/react-ui) for pre-built components ### Set Up Development Environment - Review [package.json](mdc:package.json) for workspace setup - Use scripts in [scripts/](mdc:scripts) - Check [utilities
No other project uses it yet
simstudioaiCursor rulesimstudioai/sim/.cursor/rules/sim-api-contracts.mdc
API contracts, route builders, boundary annotations, and the requestJson client boundary
Steady14 mentions in 2 weeks
No other project uses it yet
simstudioaiReads credentialsCursor rulesimstudioai/sim/.cursor/rules/sim-sandbox.mdc
Isolated-vm sandbox worker security policy. Hard rules for anything that lives in the worker child process that runs user code.
simstudioaiCursor rulesimstudioai/sim/.cursor/rules/sim-testing.mdc
Test layers, naming, and Vitest mechanics for Sim
Steady14 mentions in 2 weeks
No other project uses it yet
HumanSignalCursor ruleHumanSignal/label-studio/.cursor/rules/storage-provider.mdc
How to add a new storage or data connector for Label Studio
eyaltoledanoCursor ruleeyaltoledano/claude-task-master/.cursor/rules/self_improve.mdc
Guidelines for continuously improving Cursor rules based on emerging code patterns and best practices.
Coolinginterest down 74% this month
6 projects use a version of this
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.
