python-async-patterns

Python asyncio patterns for concurrent programming. Triggers on: asyncio, async, await, coroutine, gather, semaphore, TaskGroup, event loop, aiohttp, concurrent.

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npx tessl i github:NeverSight/skills_feed --skill python-async-patterns

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Review — 80%

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Validation — 10 / 11 Passed

Validation for skill structure

SKILL.md

Review

Evals

Evaluation results

100%

92%

URL Health Checker

Bounded concurrent HTTP fetching

Criteria

Without context

With context

Uses aiohttp

100%

ClientSession context manager

100%

Response context manager

100%

Uses gather

100%

gather return_exceptions

100%

Uses Semaphore

100%

Semaphore as context manager

100%

No blocking HTTP calls

100%

No time.sleep

100%

asyncio.run entry point

100%

Without context: $0.1973 · 57s · 14 turns · 21 in / 2,424 out tokens

With context: $0.4038 · 1m 19s · 26 turns · 29 in / 3,961 out tokens

75%

23%

Parallel Report Generator

TaskGroup and timeout structured concurrency

Criteria

Without context

With context

Uses TaskGroup

tg.create_task usage

Uses asyncio.timeout

100%

timeout as context manager

100%

Catches TimeoutError

100%

Concurrent execution

100%

No time.sleep

100%

asyncio.run entry point

100%

Timeout threshold applied

100%

Without context: $0.2159 · 48s · 14 turns · 21 in / 2,195 out tokens

With context: $0.3754 · 1m 8s · 22 turns · 26 in / 3,841 out tokens

100%

Async Log Ingestion Pipeline

Async context managers and task reference management

Criteria

Without context

With context

asynccontextmanager decorator

100%

Context manager usage

100%

Uses asyncio.Queue

100%

Producer puts to queue

100%

Consumer gets from queue

100%

Task references stored

100%

Tasks awaited

100%

Uses asyncio.Lock

100%

Lock as context manager

100%

asyncio.run entry point

100%

Without context: $0.2756 · 1m 4s · 14 turns · 21 in / 3,578 out tokens

With context: $0.4181 · 1m 38s · 20 turns · 275 in / 5,376 out tokens

Evaluated: about 18 hours ago
Agent: Claude Code

Table of Contents

URL Health Checker Parallel Report Generator Async Log Ingestion Pipeline

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