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.
santosomarCursor rulesantosomar/AI-agents-for-cybersecurity/.cursor/rules/codeguard-0-input-validation-injection.mdc
Input validation and injection defense (SQL/SOQL/LDAP/OS), parameterization, prototype pollution
santosomarCursor rulesantosomar/AI-agents-for-cybersecurity/.cursor/rules/codeguard-0-logging.mdc
Logging & monitoring (structured telemetry, redaction, integrity, detection & alerting)
santosomarCursor rulesantosomar/AI-agents-for-cybersecurity/.cursor/rules/codeguard-0-privacy-data-protection.mdc
Privacy & data protection (minimization, classification, encryption, rights, transparency)
santosomarCursor rulesantosomar/AI-agents-for-cybersecurity/.cursor/rules/codeguard-0-safe-c-functions.mdc
Safe C Functions and Memory and String Safety Guidelines
santosomarCursor rulesantosomar/AI-agents-for-cybersecurity/.cursor/rules/codeguard-1-digital-certificates.mdc
Certificate Best Practices
santosomarCursor rulesantosomar/AI-agents-for-cybersecurity/.cursor/rules/codeguard-1-hardcoded-credentials.mdc
No Hardcoded Credentials
MCP-DefenderCursor ruleMCP-Defender/MCP-Defender/.cursor/rules/mcp-defender-overview.mdc
description: globs: alwaysApply: true --- # MCP Defender Overview MCP Defender is a security application designed to monitor and protect Model Context Protocol (MCP) communications. It intercepts tool calls and responses, verifying
thehimelCursor rulethehimel/cursor-rules-and-prompts/.cursor/rules/documentation/line-wrapping.mdc
Guidelines for wrapping text lines at approximately 120 characters for better readability in documentation
jumpstarter-devCursor rulejumpstarter-dev/jumpstarter/.cursor/rules/working-with-operator.mdc
when the user is modifying the Kubernetes operator, CRDs, or controller logic
first-flukeCursor rulefirst-fluke/fullstack-starter/.cursor/rules/infrastructure.mdc
Terraform infrastructure-as-code standards for multi-cloud (AWS, GCP, Azure, OCI) provisioning
first-flukeCursor rulefirst-fluke/fullstack-starter/.cursor/rules/lint-format-guide.mdc
when working for linting and formatting.
first-flukeCursor rulefirst-fluke/fullstack-starter/.cursor/rules/mobile.mdc
Flutter/Dart and cross-platform mobile development standards
databrickslabsCursor ruledatabrickslabs/ontos/.cursor/rules/02-project-overview.mdc
access privileges into personas (roles) and assigns them to directory groups. Managed by `EntitlementsManager`. - **Security:** Enables advanced security features (e.g., differential privacy) on assets. Managed by `SecurityFeaturesManager`. - **Compliance:** Define
databrickslabsCursor ruledatabrickslabs/ontos/.cursor/rules/05-code-style-and-structure.mdc
guard clauses and early returns. - Use the structured logger from `src/backend/src/common/logging.py`. - **Error Response Security**: - NEVER expose raw exception messages in `HTTPException` `detail`. - NEVER use `detail=str(e)` or `detail
jenticCursor rulejentic/jentic-one/.cursor/rules/git-conventions.mdc
Git commit message conventions and PR merge strategy for jentic-one
azrtydxbCursor ruleazrtydxb/procoder/.cursor/rules/procoder.mdc
procoder engineering rules
suitenumeriqueCursor rulesuitenumerique/messages/.cursor/rules/django-python.mdc
Rules for writing Python with Django
OWASPCursor ruleOWASP/OpenCRE/.cursor/rules/multi-agent-workflow.mdc
Two-phase planning for big changes; builder must not be sole judge
alexgreenshCursor rulealexgreensh/repo-forensics/.cursor/rules/repo-forensics.mdc
Vet untrusted repos, skills, MCP servers, and packages with repo-forensics before installing them.
atgreenCursor ruleatgreen/icl/.cursor/rules/beads.mdc
docs, refactoring) - `epic` - Large feature with subtasks - `chore` - Maintenance (dependencies, tooling) ## Priorities - `0` - Critical (security, data loss, broken builds) - `1` - High (major features, important bugs) - `2` - Medium (default, nice
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.
