Codex Astra Orchestrator + Luna Subagents Skill Update

Melvin Vivas · X post · 2026-09-07 · Open on X

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

Summary

The creator updated his Codex skill, in which a strong model (Astra or Sol) orchestrates and cheaper Luna subagents do the work. The update enforces Luna more strictly for tasks like research and codebase exploration.

Key points

• Pattern: a strong model orchestrates and cheaper models run the subagents.
• Send research and exploration tasks to the cheaper Luna subagents.
• The update makes Codex use Luna more reliably for those tasks.
• Astra or Sol can be the orchestrator.

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

Try this

• Pull the updated skill if you use the Astra-Luna setup.