Escalate hard decisions with the advisor tool changedadvisor
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174174| Advisor tool | At decision points mid-task | Claude calls it when it needs guidance |
175175| [`opusplan`](/docs/en/model-config#opusplan-model-setting) | During plan mode when [allowed by `availableModels`](/docs/en/model-config#restrict-model-selection), then switches to Sonnet for execution | You enter plan mode |
176176| [Subagents](/docs/en/sub-agents#choose-a-model) with `model` set | For the entire delegated subtask | Claude delegates, or you invoke the subagent |
177| [`/model`](/docs/en/model-config#setting-your-model) | For all subsequent turns | You switch models |
177| [`/model`](/docs/en/model-config#setting-your-model) | From the next request onward | You switch models |
178178
179179## See also
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