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Codex

ChatGPT and Codex are one app. Download the ChatGPT app that includes both, then use Codex for this repo — see ChatGPT.

This repo assumes Codex runs from the repo root that contains Rephrased_Demo.uproject, AGENTS.md, and Source/. Codex does not auto-load Cursor .mdc rules, so keep AGENTS.md as the operating index.

First steps

  1. If you are new to the repo as a programmer, read First day (engineering) first.
  2. Download the ChatGPT app that includes Codex and sign in with the account or course token policy your cohort provides.
  3. Open Codex in that app (not the ChatGPT chat pane).
  4. Open Folder on the repo root; confirm Rephrased_Demo.uproject appears beside Source/.
  5. Point Codex at team MCP: Rephrased MCP (required). Suggested editor tools: Unreal MCP (port 6388).

Talk normally. AGENTS.md tells the agent when to call MCP. Do not invent class names, file paths, or UFUNCTION names — search the repo first.

Finish VS and Unreal before relying on Codex for gameplay experiments; Codex never replaces compiling the module.

Change history

  • 2026-08-14 — Gabriel Li — Install via the combined ChatGPT+Codex app; Unreal MCP labeled suggested.
  • 2026-08-13 — Gabriel Li — MCP harness; dropped .agents/skills invoke list.
  • 2026-05-18 — Gabriel Li — Added Codex setup page for AGENTS.md and .agents/skills/ workflow.