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  "body_excerpt": "## Summary\n- improve `BigInt::to_hex` performance by using `StringBuilder`\n\n## Testing\n- `moon info`\n- `moon test` *(fails: no output)*\n\n------\nhttps://chatgpt.com/codex/tasks/task_e_68499a1746208320b6d98eb4cbce0581",
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  "reviewer_excerpt": "## Pull Request Test Coverage Report for [Build 7439](https://coveralls.io/builds/74280029) ### Details * **13** of **13** **(100.0%)** changed or added relevant lines in **1** file are",
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   "agent": "openai-codex",
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   "title": "Improve string package coverage",
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