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Cursor rules examples

The rules real projects give Cursor's agent, from .cursor/rules.

Best matchesWorked for most · soon
cisco-ai-defenseCursor rule

skill-scanner / rules

cisco-ai-defense/skill-scanner/.cursor/rules/codeguard-0-iac-security.mdc

Infrastructure as Code Security

2.6k7mo agoDiscuss
cisco-ai-defenseCursor rule

skill-scanner / rules

cisco-ai-defense/skill-scanner/.cursor/rules/codeguard-1-crypto-algorithms.mdc

Cryptographic Security Guidelines

2.6k7mo agoDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/golang-security.md

Go security extending common rules

246k30d agoReads credentialsDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/kotlin-security.md

Kotlin security extending common rules

246k30d agoReads credentialsDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/php-security.md

PHP security extending common rules

246k30d agoDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/python-security.md

Python security extending common rules

246k30d agoReads credentialsDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/swift-security.md

Swift security extending common rules

246k30d agoReads credentialsDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/typescript-security.md

TypeScript security extending common rules

246k30d agoReads credentialsDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/common-security.md

Security: mandatory checks, secret management, response protocol

246k30d agoDiscuss
NVIDIACursor rule

dcgm-exporter / rules

NVIDIA/dcgm-exporter/.cursor/rules/shell-ci-security.mdc

Shell, CI, Docker, packaging, and security rules

1.9k3mo agoReads credentialsDiscuss
xu-xiangCursor rule

everything-claude-code-zh / rules

xu-xiang/everything-claude-code-zh/.cursor/rules/python-security.md

Python 安全规范,扩展通用安全规则 (Python security extending common rules)

1.9k7mo agoReads credentialsDiscuss
cisco-ai-defenseCursor rule

skill-scanner / rules

cisco-ai-defense/skill-scanner/.cursor/rules/codeguard-0-mobile-apps.mdc

Mobile app security (iOS/Android): storage, transport, code integrity, biometrics, permissions

2.6k7mo agoDiscuss
cisco-ai-defenseCursor rule

skill-scanner / rules

cisco-ai-defense/skill-scanner/.cursor/rules/codeguard-0-supply-chain-security.mdc

Dependency & supply chain security (pinning, SBOM, provenance, integrity, private registries)

2.6k7mo agoDiscuss
NVIDIACursor rule

Personal-AI-Router / rules

NVIDIA/Personal-AI-Router/.cursor/rules/security.mdc

Security ownership boundary — the backend owns all cluster trust; PAIR implements none

1.5k9d agoDiscuss
NVIDIACursor rule

Personal-AI-Router / rules

NVIDIA/Personal-AI-Router/.cursor/rules/system-architecture.mdc

Current PAIR runtime architecture, communication paths, modular services, and security boundaries

1.5k9d agoDiscuss
cisco-ai-defenseCursor rule

skill-scanner / rules

cisco-ai-defense/skill-scanner/.cursor/rules/codeguard-0-framework-and-languages.mdc

Framework & language security guides (Django/DRF, Laravel/Symfony/Rails, .NET, Java/JAAS, Node.js, PHP config)

2.6k7mo agoDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/common-agents.md

Agent orchestration: available agents, parallel execution, multi-perspective analysis

246k30d agoDiscuss
affaan-mCursor rule

ECC / rules

affaan-m/ECC/.cursor/rules/common-patterns.md

Common patterns: repository, API response, skeleton projects

246k30d agoDiscuss
DietrichGebertCursor rule

ponytail / rules

DietrichGebert/ponytail/.cursor/rules/ponytail.mdc

Ponytail, lazy senior dev mode. Always pick the simplest solution that works.

143k4mo agoDiscuss
PostHogCursor rule

posthog / rules

PostHog/posthog/.cursor/rules/django-python.mdc

Rules for writing Python services at PostHog (Python servers powered by the Django framework)

40k5d agoDiscuss

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.