OpenAIGuides & TipsOfficial Docs
OpenAI shares operational tips in Codex Prompting Guide
Reduces agent failures while cutting wasted reads and tokens.
Key Points
- 1Templates for parallel tool-calling
- 2Recommends ~10k-token tool output truncation
- 3Explains phase handling for long tasks
- 4Batch file reads instead of one-by-one
OpenAI’s Codex Prompting Guide explains how to write instructions that work reliably for coding agents. It details parallel tool-calling workflows and how to truncate tool outputs to save tokens. It also notes implementation cautions like the phase parameter for longer tasks. Existing Codex integrations may benefit from revisiting state and parallelism assumptions.