Bug

The /model command reports a successful switch but the actual inference continues using the previous model.

Steps to Reproduce

1. Configure multiple models in agents.defaults.models:

"models": {
  "claude-opus-4-5": {},
  "openai-codex/codex-1": { "alias": "codex" },
  "openai/gpt-5.2": { "alias": "gpt" }
}

2. Run /model codex in Telegram

3. System message appears: "Model switched to codex (openai-codex/codex-1)"

4. Check /status - still shows anthropic/claude-opus-4-5

5. Logs confirm inference uses Opus:

agent model: anthropic/claude-opus-4-5
embedded run start: ... provider=anthropic model=claude-opus-4-5

Additional Issue

Using session_status tool with model parameter returns:

Model "openai-codex/codex-1" is not allowed.

Even though the model is:

• ✅ In config (agents.defaults.models)
• ✅ Has valid OAuth (verified via clawdbot models)
• ✅ Recognized by clawdbot models command
• ✅ Alias works in config

Expected Behavior

After /model codex, subsequent inference should use openai-codex/codex-1.

Environment

• Clawdbot 2026.1.20-2
• macOS
• Channel: Telegram