Claude default_to_action Tag: Control Agent Autonomy

By default, conversational models may suggest code changes rather than executing them. Wrapping an explicit proactive directive in <default_to_action> tags inside the system prompt instructs Claude to implement edits by default and infer intent using tools rather than guessing.

<default_to_action> Implement changes and file edits by default rather than merely suggesting them. If intent is slightly ambiguous, use your file-reading and search tools to infer the correct implementation pattern from the existing repository before acting. </default_to_action>