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Codex Local Custom Agent and Model Configuration Hands-on Guide: TOML, AGENTS.md, and Precedence Rules

This story is from 2026-09-24. It is preserved in the archive; the latest stories are on the live feed.

When extending Codex to add specialized roles such as code analysts and reviewers, developers frequently run into confusing questions: where to define role prompts, which model will execute the task, and why newly written configuration files fail to trigger the target Agent automatically. This guid…

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  1. 2026-09-24 08:36 · DEV Community — AI
    Codex Local Custom Agent and Model Configuration Hands-on Guide: TOML, AGENTS.md, and Precedence Rules

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