Stored state

The plugin stores only model routing choices. It does not store prompts, responses, tokens, or provider credentials.

Locations

Scope	Path
Global	`~/.config/opencode/subagent-model.json`
Session	`~/.config/opencode/subagent-models/<session-id>.json`

XDG_CONFIG_HOME replaces ~/.config when it is defined.

{
  "mode": "forced",
  "model": "provider/model",
  "variant": "high"
}

The variant property is omitted when the model’s default reasoning should apply.

{
  "mode": "default"
}

The reader accepts only the documented fields and validates the provider/model format. Writes use a temporary file and atomic rename.