AI tooling · Python & TypeScript · Open source
I contribute fixes, tests, and performance improvements to open-source tools, with a current focus on AI applications and developer workflows.
关注 AI 应用与开发工具，通过可复现的问题、回归测试和持续贡献改进软件。
| Project | Contribution | Pull request |
|---|---|---|
| FreeLLMAPI | Add CLI provider-key management with hidden credential input, validation, and integration tests against the real API routes. | #1276 |
| cattrs | Support PEP 695 type aliases in union passthrough, with Python 3.12 regression coverage. | #753 |
| ran | Preserve zero-valued root-bracketing boundaries on non-convergence; add regression tests. | #604 |
| Dify | Migrate education-verification storage to shared React hooks and update behavior tests. | #36934 |
| Dify | Add explicit Python types for application configuration and a vector-database response helper. | #37422 |
| SentrySearch | Clarify CPU fallback on Intel Macs and test platform-specific diagnostics. | #75 |
The Dify PR below is open and awaiting maintainer review, as of September 24, 2026. Follow the link for its latest status.
- Dify #42580 — Defer tool lists and pinyin grouping until needed. Includes loading-state regression tests and before/after measurements on production frontend builds. Read the case study.
A Python workflow for source-guided environment exploration and replay: record competing hypotheses, run probes, validate action ledgers, and replay candidate plans.
Run the offline demo · Walk through the evidence · CI
The standard-library demo runs a toy puzzle from probe to fresh replay, emits a JSON evidence record, and reports failure when the search budget is insufficient. Core CI covers Python 3.10, 3.12, and 3.14. The demo is separate from the documented official ARC runs.
Deferring Dify's tool-list JavaScript until first use — Trace a shared dependency through five import sites, protect interactions while code loads, and measure the first-use trade-off. Includes the exact revisions, regression evidence, and recorded request sizes.
English / 中文