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companion script fails with 'unknown variant thread/name/set' on Codex CLI 0.118.0 #119
Description
Description
The codex-companion.mjs script fails when used with Codex CLI v0.118.0 (installed via brew install --cask codex).
The companion script sends a thread/name/set JSON-RPC method that is not recognized by the CLI.
Error
[codex] Starting Codex task thread.
Invalid request: unknown variant `thread/name/set`, expected one of `initialize`, `thread/start`, `thread/resume`, ...
Environment
- Codex CLI: v0.118.0 (brew cask)
- codex-plugin-cc: v1.0.2 (commit 8e403f9)
- Node.js: v25.5.0
- OS: macOS (Apple Silicon)
Steps to Reproduce
- Install Codex CLI v0.118.0 via
brew install --cask codex - Install codex-plugin-cc via
/plugin marketplace add openai/codex-plugin-cc - Run
/codex:rescueor any task command - Observe the
thread/name/seterror
Expected Behavior
The companion script should use the supported API methods for the current Codex CLI version.
Workaround
Using the Codex CLI directly from the terminal works fine. Only the plugin integration is affected.
Activity
tmchow commentedon Apr 3, 2026
Implemented in #126 - wraps the thread/name/set call in try/catch so it fails silently on older CLI versions.
fix: gracefully handle unsupported thread/name/set on older Codex CLI (…
Sync fork with upstream openai/codex-plugin-cc (1.0.2 → 1.0.6) (#7)