Orchestrator + Subagents in Codex: Astra Leads, Luna Builds a CRM Smoke Test

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 shows a multi-agent coding setup in OpenAI Codex. An Astra model acts as the orchestrator and hands work to Luna subagents, which together built a smoke test for his CRM app. The post is short and has no step-by-step instructions.

Key points

• Codex can run an orchestrator agent that hands tasks to subagents.
• Setup used: Astra as the orchestrator model, Luna models as the subagents.
• Use case: generating a smoke test for a CRM application.
• The creator liked the clean result, but the post includes no configuration details.

Resources mentioned

• 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

• Use an orchestrator agent plus subagents in Codex to generate smoke tests for a CRM app.