Languages cursor rules

18,338 tagged Languages, measured the same way as everything else here.

Browse within: cursorrules 82cursor-rules 72cursor-ai 64mdc 34awesome 31awesome-list 31knowledge-base 29agents-md 27best-practices 24ai-assistant 22cursor-ai-editor 21nextjs 211c-enterprise 20nodejs 20

pysheeet

145

crazyguitar/pysheeet

Plugin Claude Code

Comprehensive Python programming reference covering syntax, concurrency, networking, databases, ML/LLM development, and HPC.

8.2k yesterday A tokens not measured original MIT

py

146

crazyguitar/pysheeet

Skill Claude CodeCodex

Comprehensive Python programming reference covering syntax, concurrency, networking, databases, ML/LLM development, and HPC. Use for: Python questions, Python interview preparation, debugging, performance optimization, async patterns, library examples, code review, best practices, MLOps workflows, distributed…

8.2k yesterday A 0 tokens original MIT

readable-py

147

crazyguitar/pysheeet

Skill Claude CodeCodex

Readable Python code rules inspired by The Art of Readable Code. Use when writing, reviewing, or refactoring Python code. Enforces short functions, flat control flow, clear naming, readable structure, and Pythonic idioms.

8.2k yesterday A 51 tokens original MIT

superradcompany/microsandbox

Instructions file CodexOpenCode

AGENTS.md instructions for superradcompany/microsandbox, covering agents.md, scope, project map, design principles and backward compatibility review.

8.1k +40 yesterday A 3,652 tokens original Apache-2.0

unittest-generator

150

Upsonic/Upsonic

Agent Claude Code

Use this agent when you need to create unit tests for your code in unittest.TestCase format, organized in a tests folder with concept-based subfolders. Examples: Context: User has just written a new authentication module and needs comprehensive unit tests. user: 'I just finished writing my user authentication…

7.9k 2mo ago A 0 tokens original MIT

osaurus AGENTS.md

151

osaurus-ai/osaurus

Instructions file CodexOpenCode

AGENTS.md instructions for osaurus-ai/osaurus, covering codex configuration - osaurus-staging, build & test, keychain tip (optional), osaurus release proof and pr reporting and model runtime non-negotiables.

7.8k +16 today A 2,723 tokens original MIT

agent-squad-python

152

2FastLabs/agent-squad

Skill Claude CodeCodex

Use when building or modifying a Python app that uses the agent-squad Python package — async multi-agent orchestration for Python 3.11+: orchestrator, agents (BedrockLLMAgent, AnthropicAgent, OpenAIAgent, SupervisorAgent, GroundedAgent, ChainAgent, and more), classifier routing (Bedrock, Anthropic, OpenAI), storage…

7.8k +1 5d ago A 113 tokens original Apache-2.0

agent-squad-swift

153

2FastLabs/agent-squad

Skill Claude CodeCodex

Use when building or modifying a Swift app that uses the AgentSquad Swift framework — on-device multi-agent orchestration for iOS 16+ / macOS 14+: orchestrator, agents (Agent, GroundedAgent), classifier routing, LLM clients (OpenAI-compatible), tools (native + MCP), tool UIs/widgets, on-device storage, tracing, and…

7.8k +1 5d ago A 91 tokens original Apache-2.0

2FastLabs/agent-squad

Skill Claude CodeCodex

Use when building or modifying a Node.js / TypeScript app that uses the agent-squad npm package — multi-agent orchestration: orchestrator, agents (all built-in types + GroundedAgent), classifier routing (Bedrock / Anthropic / OpenAI), storage (in-memory / DynamoDB / SQL), retrievers (Amazon KB / Dakera), and tools…

7.8k +1 5d ago A 87 tokens original Apache-2.0

ROCKETRIDE_python_API

155

rocketride-org/rocketride-server

Agent

A Python SDK for executing RocketRide pipelines using the Debug Adapter Protocol (DAP). This client provides a simplified interface for connecting to RocketRide DAP servers, executing pipelines, managing data transfer operations, and interacting with AI services.

7.6k +138 today A 0 tokens original MIT

rocketride-org/rocketride-server

Agent

A TypeScript/JavaScript SDK for executing RocketRide pipelines using the Debug Adapter Protocol (DAP). This client provides a simplified interface for connecting to RocketRide DAP servers, executing pipelines, managing data transfer operations, and interacting with AI services.

7.6k +138 today A 0 tokens original MIT

ts-core

157

vercel-labs/native

Skill Claude CodeCodex ✓ vendor

Authoring guide for the primary Native SDK app-logic path: TypeScript app cores - Model, Msg, update, and the pure functions they call, written in the closed app-core subset, checked by the @native-sdk/core frontend, and compiled ahead-of-time to native code by the external core compiler. Use for new apps unless the…

7.6k +14 7d ago A 227 tokens original Apache-2.0

FastLED CLAUDE.md

158

FastLED/FastLED

Instructions file

Claude Code instructions for FastLED/FastLED, covering fastled ai agent guidelines, read the right file for your task, key commands, core rules (all agents) and git and code publishing.

7.5k +1 changed today A 2,927 tokens original MIT

tests

159

FastLED/FastLED

Agent

For comprehensive guidelines, read these files.

7.5k +1 today A 0 tokens original MIT

python-binance

160

sammchardy/python-binance

Skill Claude CodeCodex

Help developers use the python-binance library for trading on Binance. Use when code imports binance, references Client/AsyncClient, or asks about Binance API trading, market data, websockets, or account management.

7.2k +1 2mo ago A 47 tokens original MIT

cpp-compiler-flags

161

Serial-Studio/Serial-Studio

Skill Claude CodeCodex

C++ compiler/linker flag guidance for Serial Studio's build (GCC, Clang, AppleClang, MSVC cl.exe, clang-cl, MinGW, IntelLLVM). Use when reading, changing, or reasoning about the cmake flag modules (Optimization/Hardening/Sanitizers/MiMalloc), tuning -O/-march/LTO/PGO, adding a per-toolchain branch, debugging a flag…

7.2k +6 yesterday A 160 tokens

qt-cpp-review

162

Serial-Studio/Serial-Studio

Skill Claude CodeCodex

Qt6/C++ deep code review for Serial Studio. Use when asked to "review", "audit", "check", "look over", or "sanity check" C++ — or before committing. Runs the repo linter (scripts/code-verify.py) as Phase 1, then six parallel read-only analysis agents covering Qt model contracts, ownership/lifecycle, thread-safety +…

7.2k +6 yesterday A 119 tokens

ts

163

un-pany/v3-admin-vite

Cursor rule Cursor

A set of TypeScript coding rules covering types, naming, file organization, error handling, and strict type checking. TypeScript is JavaScript with checks that help catch many mistakes before the program runs.

7.0k +3 1mo ago A 287 tokens original MIT

build-brightstaff

164

katanemo/plano

Skill Claude CodeCodex

Build the brightstaff native binary. Use when brightstaff code changes.

7.0k +12 14d ago A 19 tokens original Apache-2.0

build-wasm

165

katanemo/plano

Skill Claude CodeCodex

Build the WASM plugins for Envoy. Use when WASM plugin code changes.

7.0k +12 14d ago A 21 tokens original Apache-2.0

honcho-integration

166

plastic-labs/honcho

Skill Claude CodeCodex

Integrate Honcho memory into existing Python or TypeScript codebases. Use when adding Honcho SDK, setting up peers, configuring sessions, and accessing Honcho's representation.

7.0k +41 yesterday A 40 tokens AGPL-3.0