Ask HN-style: enforcing smart model routing in Codex via AGENTS.md rules

Funny-Land3565 · reddit · 2026-09-08

A user asks for practical Codex setup help: how to write AGENTS.md/skills/prompt rules so the model auto-judges task difficulty — trivial subtasks (installing dependencies, fetching dates) get immediately delegated to a weaker sub-agent (e.g. luna), while genuinely hard tasks use high-reasoning models.

The core idea is on-demand reasoning-budget allocation across models. The post only states the need; no solutions yet.

Related event: Codex users seek AGENTS.md rules to auto-delegate simple tasks to weaker models(2 posts)→

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