Codeg 0.21.0 + Grok Build 0.2.103
Settings → Multi-Agent → Agent defaults for Grok:
"Agent did not publish its configurable options within 60 seconds"
Only Grok fails; Claude/Codex/Gemini probe OK.
Grok initialize puts models in _meta.modelState, not ACP SessionConfigOptions.
Also emits _x.ai/mcp/servers_updated which Codeg rejects (no handler).
Codeg 0.21.0 + Grok Build 0.2.103
Settings → Multi-Agent → Agent defaults for Grok:
"Agent did not publish its configurable options within 60 seconds"
Only Grok fails; Claude/Codex/Gemini probe OK.
Grok initialize puts models in _meta.modelState, not ACP SessionConfigOptions.
Also emits _x.ai/mcp/servers_updated which Codeg rejects (no handler).