{
  "id": "python-async-concurrency-reliability",
  "name": "python-async-concurrency-reliability",
  "version": "0.1.0",
  "type": "skill",
  "provider": "python",
  "harnesses": [
    "codex",
    "claude-code",
    "cursor",
    "gemini",
    "kiro",
    "other"
  ],
  "summary": "Static review of Python asyncio reliability: blocking calls that stall the event loop, cancellation correctness, missing timeouts on external awaits, task lifecycle and structured concurrency, backpressure on unbounded fan-out, and context propagation across executor and thread boundaries. Reads source only; never runs code or measures timing.",
  "source_type": "original",
  "official_docs": [
    "https://docs.python.org/3/library/asyncio-task.html",
    "https://docs.python.org/3/library/asyncio-eventloop.html#asyncio.loop.run_in_executor",
    "https://docs.python.org/3/library/asyncio-task.html#timeouts",
    "https://docs.python.org/3/library/asyncio-task.html#task-groups"
  ],
  "security_notes": "Static review only — reads Python async source and sanitized configuration to locate event-loop blocking, cancellation, timeout, and backpressure defects; never runs the service, never starts an event loop, and never measures actual latency, throughput, or deadlock behavior. A timing or throughput claim not derivable from the source is flagged as needing measurement rather than asserted. Never requests secrets, credentials, or a live connection.",
  "last_verified": "2026-07-26",
  "path": "skills/python/python-async-concurrency-reliability",
  "author": "github: VincentChuWaiChow"
}
