vllm-pr-desc-generator

Generate a vLLM-style PR description (Purpose / Test Plan / Test Result) from a GitHub PR's code changes. Use when the user provides a vLLM PR link or number and asks to generate, write, or draft a PR description. Triggered by requests like "帮我生成PR描述", "generate PR description for vllm PR 12345", "帮我写vllm PR的描述", "draft a PR desc for https://github.com/vllm-project/vllm/pull/12345".