Debug and fix open-source bugs with tests via agents
The author used coding agents to debug two bugs in an open-source system tool and implement fixes and tests autonomously, then submitted two PRs.
Done with a custom-built or unnamed agent
- What they did
- The author pointed coding agents at two highly specific bugs in an open-source system tool. The agents debugged each issue, then wrote the fixes and tests on their own. The author then submitted the results as two pull requests last month. The comment gives no detail on which agents, prompts, or review steps were used.
- How it went
- Two PRs were submitted, each a targeted fix with tests. The source doesn't say whether they were merged, how long the work took, or how much the author had to correct.
Try it yourself with Codex
I want to fix two bugs in the open-source project at [repo URL or local path]. The bugs are: [bug 1 description or issue link] and [bug 2 description or issue link]. For each one, reproduce it, write a failing test, implement the fix, and confirm the full test suite passes. Finish by giving me a summary of the changes and a draft PR description for each, and don't push or open any PR until I've reviewed the diff.
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Source: HN · Oct 25, 2026
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