python-async-ops SKILL.md skillA
python-async-ops from 0xdarkmatter/claude-mods is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add 0xdarkmatter/claude-mods/python-async-ops@git:20260610.e29f196Pins git:20260610.e29f196 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- 0xdarkmatter/claude-mods
- Path
skills/python-async-ops/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260610.e29f196, committed Jun 10, 2026
- First version recorded
- Mar 8, 2026
- Size
- 4,874 bytes
- Repository stars
- 68
- License
- MIT
Python asyncio patterns for concurrent programming. Triggers on: asyncio, async, await, coroutine, gather, semaphore, TaskGroup, event loop, aiohttp, concurrent.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Python Async Patterns
Asyncio patterns for concurrent Python programming.
## When to Use Async vs Sync
| Use Async When | Use Sync When |
|----------------|---------------|
| I/O-bound operations (HTTP, DB, files) | CPU-bound computations |
| High concurrency (100s+ connections) | Simple scripts, one-off tasks |
| WebSocket/streaming connections | Small data processing |
| Microservices with network calls | Single sequential operations |
**Decision tree:**
1. Is it CPU-bound? → Sync (or multiprocessing)
2. Is it I/O-bound with high concurrency? → Async
3. Is it simple I/O with few connections? → Sync is fine
## Core Concepts
```python
import asyncio
# Coroutine (must be awaited)
async def fetch(url: str) -> str:
async with aiohttp.ClientSession() as session:
async with session.get(url) as response:
return await response.text()
# Entry point
async def main():
result = await fetch("https://example.com")
return result
asyncio.run(main())
```
## Pattern 1: Concurrent with gather
```python
async def fetch_all(urls: list[str]) -> list[str]:
"""Fetch multiple URLs concurrently."""
async with aiohttp.ClientSession() as session:
…Read the whole file at its exact version.
How to install
mdr add 0xdarkmatter/claude-mods/python-async-ops@sha256:5af1ff44e78e50ccThe line at the top of this page pins the label git:20260610.e29f196, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_vowl76qgennhh47j)
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Versions
The registry has recorded 3 versions of this file, between Mar 8, 2026 and Jun 10, 2026, about one every 47 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260610.e29f196 latest | 2026-06-10 | e29f196 | 4,874 B | A | view · diff |
| git:20260410.d221136 | 2026-04-10 | d221136 | 4,323 B | A | view · diff |
| git:20260308.74c38cb | 2026-03-08 | 74c38cb | 4,278 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (4874 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
0xdarkmatter/claude-mods · 68 stars · license MIT · pushed 2026-10-14 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_vowl76qgennhh47j GET https://markdownregistry.com/api/v1/resolve?ref=0xdarkmatter/claude-mods/python-async-ops GET https://markdownregistry.com/api/v1/blob/5af1ff44e78e50cceda6e73c6429a0aacedd91a69522640936c6a8c2e6c3f0f7
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