# Builder 已經在改 Codex 設定保效能與配額

> Author: Tony Lee
> Published: 2026-07-10
> URL: https://tonylee.im/zh-TW/blog/codex-config-fix-performance-and-quota/
> Reading time: 1 minutes
> Language: zh-TW
> Tags: codex, openai, gpt-5.6, config, multi-agent, ai-coding

## Canonical

https://tonylee.im/zh-TW/blog/codex-config-fix-performance-and-quota/

## Rollout Alternates

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zh-TW: https://tonylee.im/zh-TW/blog/codex-config-fix-performance-and-quota/

## Description

預設 system prompt 截斷與子代理爆炸。我測到的原因與 config.toml。

## Summary

Builder 已經在改 Codex 設定保效能與配額 is part of Tony Lee's ongoing coverage of AI agents, developer tools, startup strategy, and AI industry shifts.

## Outline

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## Content

GPT-5.6 抬高了預期。Builder 早就知道：變慢、配額燒得快，不全是模型笨。

預設 system prompt 約每 30 秒要求進度回報，reasoning 會被自己砍短。usage 常看到 `518*n−2` 形結尾。未修補我的測試 4/5。

把重寫的 base instructions 指到 `config.toml` 的 `model_instructions_file`，拿掉 30 秒回報後同測 5/5。

`spawn_agent` 不能幫子代理釘更便宜模型，樹一展開就破 200。用 V1 + `max_depth = 1`，或 V2 把並發 thread 降到 2。先開 `config.toml`。

## Related URLs

- Author: https://tonylee.im/zh-TW/author/
- Publication: https://tonylee.im/zh-TW/blog/about/
- Related article: https://tonylee.im/zh-TW/blog/codex-starter-guide-vible/
- Related article: https://tonylee.im/zh-TW/blog/fable-5-rate-limit-survival-settings/
- Related article: https://tonylee.im/zh-TW/blog/appintoss-agent-kit-fifty-miniapps/

## Citation

- Author: Tony Lee
- Site: tonylee.im
- Canonical URL: https://tonylee.im/zh-TW/blog/codex-config-fix-performance-and-quota/

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Author: Tony Lee | Website: https://tonylee.im
For more articles, visit: https://tonylee.im/zh-TW/blog/
This content is original and authored by Tony Lee. Please attribute when quoting or referencing.