test-codex-runtimelisted
Install: claude install-skill nick-pape/grackle
# Test the Codex runtime
How to spawn the **`codex`** runtime against an isolated test server. Assumes a server from `/launch-grackle` (with `GRACKLE_URL` + `GRACKLE_API_KEY` exported).
## Allowed model names ✅ / ❌ (ChatGPT-account auth)
| Model | Works? | Notes |
| ---------------------------------------------------------------- | --------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `gpt-5.5` | ✅ **confirmed live** | Needs **Codex SDK >= 0.135.0** (the catalog pin). On the old 0.111.0 it errored "requires a newer version of Codex." |
| `o3`, `o3-mini`, `gpt-5-codex`, `gpt-5`, `gpt-5.1`, `gpt-5-mini` | ❌ | "not supported when using Codex with a ChatGPT account" — these are **account-gated** (likely need OpenAI API-key auth or a higher tier), independent of SDK version |
> The catalog (`packages/common/src/runtime-catalog.ts`) advertises **`gpt-5.5`** and pins `@openai/codex-sdk ^0.135.0`. If `grackle runtimes` still shows `o3`, the catalog hasn't been rebuilt/installed.
History: the SD