Implement task

Build exactly one Task from a Spec folder. The Task file defines the slice, acceptance criteria, and Verification contract. Standalone execution owns the full lifecycle; a Roundfix Daemon-assigned turn hands back implementation-ready work for Daemon Verification and settlement.

Being assigned the Task — by the user, a loop, or a Daemon — is the authorization to start. Begin immediately: no greeting, no plan-approval question, no waiting for a "go". Contradictory requirements, or a stale standalone in_progress status, are the only reasons to pause before implementing.

Execution modes

Standalone execution and a Roundfix Daemon-assigned turn share the same Task slice, Result, and evidence requirements, but they have different settlement owners.