bugfix
bugfix is a Runtime diagnostics & profiling skill for AI agents, published by alibaba in the MNN repository on GitHub. Skillspace rates bugfix D (57/100) and it passed the safety scan; the rating is based on static analysis only.
MNN 各类正确性/回归 bug 的排查入口，按 bug 类别分册组织，本文件只做症状分流。分册：内存别名与生命周期（arena reuse、`MemChunk`、融合引入的别名竞争）、量化误差与导出侧权重损坏（低 bit 打包、导出分块、PyTorch MPS/CUDA 大张量静默错误）、fp16 表示能力不足（长序列复读、position 塌缩，以及「实时计算→预计算查表」重构的三类陷阱）、GPU shader 越界与 command buffer 故障、后端 kernel 隐式假设违反（causal mask、layout 约定）、持久化缓存误信（weight-mmap sync 自我污染、跨模型缓存复用）、逐 run 不同的非确定性（未初始化内存/堆垃圾依赖、多线程动态分发×异构 kernel）。用户报告 MNN 输出乱码/退化、单测或 golden 对不上、改动后回归、换后端结果不同、开某开关才错、结果每次跑都不一样时使用。
- Grade
- D
- Quality
- 57 / 100
- Safety
- Passed
- GitHub stars
- 16,077
Unproven: rated by static analysis only, not yet compared head-to-head.
Our two independent classifiers differ on this skill's category, so treat the placement as provisional.
This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.
Our review
- Architecture
- 88 / 100
- Maturity
- Basic: a single SKILL.md
- Security scan
- Low-risk patterns
- License
- Not declared. Check the repository before reusing it.
What the scanner flagged
- mentions secrets in text
Not checked yet
- Category is a classifier prediction; no model has read this skill yet
- Not judged on the rubric yet (not a contender in its category)
- No blind task eval yet
- Scope (portable / vendor / repo-internal) not assessed; only the top of each category is read for scope
- Sibling files (scripts, references) not fetched; security scan covers SKILL.md only
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