When a write is blocked for being outside the claimed task's
affected_paths, the implementer can propose widening scope via a new
T2 propose_scope tool. The operator decides (invariant #4 — the agent
can't self-grant). Approve unions the proposed paths into the task's
affected_paths (existing TaskAffectedPathsSetEvent); activeScope
re-derives the wider manifest from events so the same write then passes.
Reject blocks the task (via TaskClaimCoordinator.blockActiveTask, hooked
on both approval-denial branches, scoped to propose_scope) so the loop
advances. No new event types.
kami
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