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.
abxn4rReads credentialsCursor ruleabxn4r/archon-skills/.cursor/rules/saltzer.mdc
ALWAYS invoke when the user mentions Saltzer (e.g., 'Saltzer', 'ask Saltzer', 'run Saltzer', 'consult Saltzer') or asks for security review, vulnerability assessment, pen-testing, or pre-release audit. Principal Application
adammatthewsteinbergerCursor ruleadammatthewsteinberger/claudeloop/.cursor/rules/claudeloop-agent-sdk.mdc
Explains how claudeloop integrates with claude-agent-sdk (ClaudeAgentOptions, ClaudeSDKClient vs query(), RateLimitEvent, ResultMessage, AssistantMessage, session discovery via list_sessions()) and the never-block-on-a-human design (permission_mode, can_use_tool, AskUserQuestion handling, hooks). Use this whenever building or modifying src/claudeloop/infrastructure/agent/ (the M2+ agent gateway, options builder, message translation, session catalog, capacity probe), whenever the user asks about the Claude Agent SDK, ClaudeAgentOptions fields, session resumption, rate-limit events, or why a run might block on a human. Make sure to consult this before writing any code that calls claude_agent_sdk directly — infrastructure/agent/ is the ONLY place that import is allowed, per the onion architecture (see the claudeloop-architecture skill), and getting the never-block guarantees wrong here defeats the entire purpose of this project.
afaraha8403Cursor ruleafaraha8403/balakit/.cursor/rules/seo-ai-search.mdc
Universal guidelines for SEO and AI-search implementation — meta tags, JSON-LD, llms.txt, crawlability, and adversarial security.
afaraha8403Cursor ruleafaraha8403/MCP-Scooter/.cursor/rules/mcp-registry.mdc
Rules for working with MCP Scooter registry and creating new MCP definitions
andr-caCursor ruleandr-ca/agentharness/.cursor/rules/dependency-audit.mdc
Use when adding dependencies, reviewing a project's dependency tree, or checking for known vulnerabilities and ownership risk — covers pip-audit, npm audit, govulncheck, lock file hygiene, update policy, and trust assessment.
andrian-syhCursor ruleandrian-syh/roblox-optimum/.cursor/rules/roblox-optimum.mdc
Roblox and Luau coding standards
andrii-lytvynkoCursor ruleandrii-lytvynko/ZenBox-Prototype/.cursor/rules/garden-design-system.mdc
Enforce Zendesk Garden Design System for all components, styling, tokens, and typography
brettdaviesReads credentialsCursor rulebrettdavies/insurance-broker-quote-assistant/.cursor/rules/tanstack-query-devtools.mdc
when debugging TanStack Query/React Query issues, inspecting cache state, troubleshooting API calls, investigating stale data, mutations not updating UI, or infinite refetch loops
Chiru144Cursor ruleChiru144/Spotify-MCP-Web-And-MCP-Server/.cursor/rules/spotify-mcp-rules.mdc
Spotify MCP & TMDB Tool Usage and Clarification Protocol
contextmuxCursor rulecontextmux/contextmux/.cursor/rules/skill-find-before-writing.mdc
Use before creating any new helper, hook, component, selector, type or utility — search the codebase for an existing implementation first.
dawood-kReads credentialsCursor ruledawood-k/Agent-infinity/.cursor/rules/dev_workflow.mdc
Guide for using Task Master to manage task-driven development workflows
dawood-kReads credentialsCursor ruledawood-k/Agent-infinity/.cursor/rules/taskmaster.mdc
Comprehensive reference for Taskmaster MCP tools and CLI commands.
enwritCursor ruleenwrit/writ/.cursor/rules/project-rule.mdc
Core project identity, architecture, and conventions for the writ CLI tool (enwrit.com)
enwritCursor ruleenwrit/writ/.cursor/rules/project-treeview.mdc
Annotated treeview of the writ CLI project structure for agent orientation (enwrit.com)
EvilFreelancerCursor ruleEvilFreelancer/zaezd/.cursor/rules/architecture.mdc
Layers, dependency direction, fixed architectural decisions
EvilFreelancerCursor ruleEvilFreelancer/zaezd/.cursor/rules/data-sources.mdc
confcal and Tutu clients, normalization, cache TTL, degradation
EvilFreelancerCursor ruleEvilFreelancer/zaezd/.cursor/rules/mcp-layer.mdc
The three outward MCP tools, outputSchema, checkout labels, ui resource
EvilFreelancerCursor ruleEvilFreelancer/zaezd/.cursor/rules/web-ui.mdc
Trip board screen, states, honesty, Kite tokens, adaptivity
ForumViriumHelsinkiCursor ruleForumViriumHelsinki/.github/.cursor/rules/ci-cd-claude.mdc
Inputs and max-turns handoff of the reusable-claude.yml @-mention workflow
FZ2000Cursor ruleFZ2000/android-jev/.cursor/rules/android-phone-control.mdc
instructions below are written for any agent. The phone is driven > through an MCP server, so any client that speaks MCP can use it: the > tools appear here under
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.
