Codex orchestrator (Astra/Sol) with Luna subagents: example repo

Melvin Vivas · X post · 2026-09-06 · Open on X

Topics: AI Agents, Tool Use & MCP, AI Dev Tools & Productivity · Level: intermediate

Summary

The creator shares a repo that sets up Codex with Astra or Sol as the orchestrator and Luna models as subagents. This is a common multi-agent pattern: a strong model plans and hands off work, and cheaper models do it. The setup is still being tested.

Key points

• Orchestrator: GPT-6 Astra (or Sol) plans and hands work to subagents.
• Subagents: Luna models do the delegated tasks.
• The setup is set up for Codex and published as an open repo.
• The creator says it is still being tested, so expect it to change.

Resources mentioned

• donvito/codex-astra-luna-orchestrator · repo · github.com · free
  The creator's Codex skill for an orchestrator-plus-subagents setup (Astra orchestrator, Luna subagents), configured through config.toml.
  Also in: Codex Orchestrator Pattern: Astra/Sol Orchestrator with Luna Subagents (Melvin Vivas on X · notes), Open-source Codex skill: Astra/Sol orchestrator with Luna subagents (Melvin Vivas on X · notes), Cost-Efficient Codex Subagents: Astra/Sol Orchestrator + Luna Workers (Melvin Vivas on X · notes), Codex Orchestrator v0.2.1: GPT-6 Sol orchestrator with Luna subagents (Melvin Vivas on X · notes) and 27 more
• OpenAI Codex · tool · openai.com · paid
  OpenAI's coding agent. In the diagram it writes code, fixes review findings and drives the build loop. The creator also used it to make this video.
  Also in: An agent bot that installs and drives Codex on its own (Melvin Vivas on X · notes), Asking a Coder bot to install Codex (Melvin Vivas on X · notes), Sign in with ChatGPT: Setting Usage Limits for Each App (Melvin Vivas on X · notes), Codex Cloud Environments Must Be Saved & Published Before Use (Melvin Vivas on X · notes) and 240 more

Try this

• Clone the repo and try an orchestrator + subagent setup in Codex.
• Build an orchestrator-subagent coding workflow that pairs a strong model with cheaper subagent models.