The rules real projects give Cursor's agent, from .cursor/rules.
NVIDIACursor ruleNVIDIA/physicsnemo/.cursor/rules/mod-008a-model-missing-constructor-attributes-tests.mdc
Every model must have CI tests verifying constructor instantiation and all public attributes (excluding buffers/parameters) using pytest parameterization.
alipajandCursor rulealipajand/agent-readiness-kit/.cursor/rules/TESTING.mdc
Test expectations for audit checks and CLI behaviour
AndreRatzenbergerCursor ruleAndreRatzenberger/cursor-rules/.cursor/rules/development-workflow-rule.mdc
Comprehensive development workflow system for task tracking, testing, and version control
AWSCursor ruleaws/modern-data-architecture-accelerator/.cursor/rules/review-cli-architecture.mdc
CLI shell-safety invariants — parameter validation, sink quoting, and their tests
labringCursor rulelabring/sealos-skills/.cursor/rules/validation-assets.mdc
Keep all local test artifacts and scratch clones in gitignored validation-assets/
edhoferdianCursor ruleedhoferdian/EEF/.cursor/rules/code-simplification-edho-ferdian.mdc
Behavior-preserving refactoring workflow that actively rewrites code for clarity — extracting overlong functions, flattening deep nesting, consolidating duplicated logic, AND removing over-engineered \"just in case\" abstractions — always gated on a passing test suite (or a characterization test written first) so behavior never changes. Use whenever the user wants code actually SIMPLIFIED or REFACTORED, not just reviewed: \"sederhanakan kode ini\", \"refactor biar lebih rapi\", \"reduce complexity\", \"ini over-engineered\". A read-only finding about the same issues (CQ-01/CQ-04/CQ-04b in `review-checklist.md`) is `code-review-edho-ferdian`'s job, not this skill's — see the scope table below for the exact boundary with that skill, `dead-code-cleanup-edho- ferdian`, and `build-fix-edho-ferdian`.
rlaopeCursor rulerlaope/nen/.cursor/rules/nen-conjurer.mdc
Failure-mode-driven reliability engineering — enumerate how it breaks, give every mode a verdict, prove every handler with a reproducing test. Use when the user says \"flaky\", \"harden this before launch\", \"what if this fails\", \"error handling\", \"timeout\", \"retry\", \"idempotency\", or \"race condition\"; when an incident or postmortem lands; when a job crashes halfway and leaves partial state; when a webhook or queue consumer double-fires, sees double delivery, or charges a customer twice; when crash recovery is undefined; or when code is about to ship with only happy-path tests.
mchittineniCursor rulemchittineni/cloud-platform-skills/.cursor/rules/skills/policy-as-code-opa-kyverno.mdc
Policy as code for Kubernetes and infrastructure: authoring Kyverno ClusterPolicy rules, OPA Rego in a Gatekeeper ConstraintTemplate, and Conftest checks, plus Pod Security Standards enforcement, policy unit testing, and an owned exception register with expiry dates. Use when privileged containers or pods without resource limits must be rejected at admission rather than reported, when admission policies need tests so a rule cannot silently stop matching, or when choosing between Kyverno and OPA Gatekeeper.
galyarderlabsCursor rulegalyarderlabs/galyarder-framework/.cursor/rules/systematic-debugging.mdc
Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes
zen-mcpCursor rulezen-mcp/browser/.cursor/rules/10-python.mdc
Python conventions for browser-mcp runtime and tests
rlaopeCursor rulerlaope/nen/.cursor/rules/nen-transmuter.mdc
Behavior-preserving refactoring under characterization tests, plus severity-rated code review. Use when the user says \"refactor\", \"clean up\", \"tech debt\", \"code review\", \"extract\", \"rename\", \"restructure\", \"this file is a mess\", or \"impossible to modify\"; when every small change breaks something unrelated; when cleanup has to land before the next feature has anywhere to go; when code is called hard to change, scary to touch, or too tangled to test; when requirements shifted and the current shape fights the new feature; when a PR needs review for structure and maintainability; or when every small change keeps ballooning because everything touches everything.
CadastoCursor ruleCadasto/openehr-assistant-mcp/.cursor/rules/docker-workflow.mdc
Run PHP, Composer, tests, and static analysis only via Docker in this project
NVIDIACursor ruleNVIDIA/physicsnemo/.cursor/rules/mod-008c-model-missing-checkpoint-loading-test.mdc
Every model must have tests that load from checkpoint files (.mdlus), verify attributes, and compare outputs against reference data to ensure serialization works correctly.
bybren-llcCursor rulebybren-llc/safe-agentic-workflow/.cursor/rules/22-agent-qas.mdc
QAS (Quality Assurance Specialist) agent role: independent gate owner, acceptance criteria verification, test execution.
afaraha8403Cursor ruleafaraha8403/MCP-Scooter/.cursor/rules/mcp-testing.mdc
Systematic workflow for testing individual MCP servers from the registry.
EvilFreelancerCursor ruleEvilFreelancer/zaezd/.cursor/rules/testing.mdc
Vitest conventions and the mandatory unit-test set
ARTPARK-SAHAI-ORGCursor ruleARTPARK-SAHAI-ORG/calibrate-backend/.cursor/rules/architecture.md
Calibrate Backend Architecture - AI Agent Testing & Evaluation Platform
streamshubCursor rulestreamshub/streamshub-mcp/.cursor/rules/add-system-test.mdc
Step-by-step guide for writing e2e system tests
cbtw-apacCursor rulecbtw-apac/qdrant-loader/.cursor/rules/qa.mdc
Guide the AI to act as a Senior QA Engineer, focusing on test strategies and quality assurance.
saharmorCursor rulesaharmor/simulatedev/.cursor/rules/running_backend.mdc
Every time Cursor is trying to run the backend or test it, i.e. needing port 8000
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.
