A project AGENTS.md turns Codex's Astra into a self-orchestrating multi-agent lead
Dexterous666 · reddit · 2026-09-12
Tired of manually shuttling handoffs between models, the author wrote a project-level AGENTS.md that makes Codex's Astra act as a technical lead orchestrating Luna (cheap exploration), Terra (standard implementation) and Sol (hard coding/review):
- Role routing: Astra handles architecture, decomposition and escalation; workers handle the rest.
- Model choice decoupled from reasoning effort — coordination turns never burn High.
- Token-saving rules: delegate, wait efficiently, wake only for meaningful reviews; keep child contexts small instead of inheriting the full parent session.
- Mandatory post-task debrief: which models were used, effort requested vs confirmed, delegation effectiveness, right-sizing agents, and lessons for future routing.
- Context-budget awareness: Astra reports when a session should be handed off and restarted.
The config is project-scoped for now. The author notes Codex's desktop UI lacks a live view of each subagent's actual model/effort, which motivated the explicit reporting. Result feels like a genuine multi-agent setup rather than models in a dropdown.
Related event: Developers Build Multi-Agent Orchestration for Days-Long Projects(2 posts)→
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