awesome-cursor-rules-mdc is a generator that creates Cursor MDC rule files from structured library information, using semantic search and language models to gather and organize guidance. Developers use it to produce reusable rules for libraries in Cursor, and the catalogue includes 200 of those rules.
Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add rules/sanjeed5/awesome-cursor-rules-mdc/anyiogit clone --depth 1 https://github.com/sanjeed5/awesome-cursor-rules-mdcWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/rules/sanjeed5/awesome-cursor-rules-mdc/anyio)<a href="https://agentmods.dev/rules/sanjeed5/awesome-cursor-rules-mdc/anyio"><img src="https://agentmods.dev/badge/rules/sanjeed5/awesome-cursor-rules-mdc/anyio.svg" alt="Measured on agentmods" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5 | $0.00297 | $0.00297 |
| Opus 5 | $0.00148 | $0.00148 |
| Sonnet 5 | $0.00059 | $0.00059 |
| Haiku 4.5 | $0.00030 | $0.00030 |
Grade A, and why
anyio scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 6d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
AnyIO Best Practices
AnyIO is the definitive choice for modern asynchronous Python development. It provides a unified, Trio-inspired API on top of asyncio or Trio, fixing critical design shortcomings of asyncio and enforcing structured concurrency. Adhere to these rules to build reliable, high-performance async applications.
1. Entry Point and Backend Selection
Always use anyio.run() as your application's entry point. Explicitly select your preferred backend and leverage backend-specific optimizations.
❌ BAD: Relying on default backend or asyncio.run().
import asyncio
from anyio import run, sleep
async def main():
print("Running on default backend (asyncio) without uvloop.")
await sleep(0.1)
asyncio.run(main) # Bypasses AnyIO's entry point
run(main) # Implicit backend, no optimizations
✅ GOOD: Explicit backend selection and performance enhancements.
from anyio import run, sleep
import sniffio
async def main():
backend = sniffio.current_async_library()
print(f"Hello from {backend}!")
await sleep(0.1)
# For production, prefer
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 6d ago First seen · 36 lines · 0 tokens per session scan A dfe28fd218a1
anyio is a cursor rule published in the GitHub repository sanjeed5/awesome-cursor-rules-mdc (3,571 stars, last pushed 3mo ago), licensed CC0-1.0. It adds 297 tokens to every session, about $0.0015 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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