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Prompts and workflows

GPT-5.6 Luna · workflow

X: Create a Custom luna_worker Agent for Codex

The X indexed snippet presents a small but executable Codex agent configuration idea: have Sol create a custom agent named lunaworker, set its model to gpt-5.6-luna, and then have that agent take on subagent tasks. The second snippet asks you to preserve the e。

Source not verifiedGPT-5.6 Luna client or agent harness; confirm the live model entry, tools and version before execution.

Prerequisites and inputs

  • task goal
  • code or product brief
  • runtime constraints
  • acceptance criteria

Task outcome\n\nTurn “X: Create a Custom luna_worker Agent for Codex” into a checkable starting workflow; do not treat a showcase as general capability.\n\n## Prerequisites\n\n- Prepare the goal, inputs, runtime, and acceptance criteria.\n- Confirm the live GPT-5.6 Luna entry, tool permissions, and version.\n\n## Steps\n\n1. Run a minimal input first and record the model, tools, latency, and failure state.\n2. Check the output against the required format and acceptance criteria, then add missing constraints.\n3. Manually review facts, code, visual artifacts, and external actions.\n\n## Boundary\n\nThis guide is an editorial adaptation of the source observation; it does not claim that Tabbit has verified the source client capabilities.

Read the source research notes

Summary

The X indexed snippet presents a small but executable Codex agent configuration idea: have Sol create a custom agent named luna_worker, set its model to gpt-5.6-luna, and then have that agent take on subagent tasks. The second snippet asks you to preserve the existing configuration, validate it against the installed version, show the diff, and only then use luna_worker.

Original prompt (content visible in Google's index)

create a custom agent named luna_worker at ~/.codex/agents/luna-worker.toml. use these settings: model = "gpt-5.6-luna"… This is a necessary excerpt; read the original source for full context.

Usage boundaries

The body of the X post could not be expanded in the Tabbit international edition, so this article retains only the original text visible in Google's index. Before actually executing it, have the agent first read the current Codex documentation and configuration format, back up the file, show the diff, and confirm whether the custom agent will inherit permissions or tools it should not inherit.

Source and dates

X · Source date: Not disclosed · Edited: 2026-09-20

Read the original source
Variable checklist

No required variables

Related prompts

Reddit Codex: Diagnostic and Verification Prompt for Luna Subagent CompatibilityThe Builder's Guide to GPT-5.6: Luna's Model Selection, Agent Orchestration, and CachingReddit Codex: Multi-Model Routing Configuration for Luna Subagents and Sol ReviewUse Cheap Luna to Orchestrate Threads: Use Threads Rather Than Same-Model Subagents

Related reviews

Agents on Rails: 8 Models, 21 Atomic TasksThoughts after using GPT-5.6 Luna for 48 hoursGPT-5.6 Luna Is Really Underrated: Codex User Experience5.6 Luna Extra High is the work horse I needed

GPT-5.6 Luna

Use GPT-5.6 Luna in Tabbit

Run this guide in the environment listed above. Downloading does not transfer the template or establish model availability for your account.