Why: The r2 U5 clause requires a human review of the action scope
before implementation; this draft grounds the decision in the current
command inventory and existing safety machinery.
Evidence: Source facts cited inline (builtin command list with risk
levels, DangerHigh inline-confirm flow with pendingStore, audit
envelope) verified against backend main on 2026-10-11.
Impact: Documents-only (new proposal + index entry); no code changes.
Refs: 2026-10-10-generative-ui-plugin.md (r2 U5); Dev task
feature/generative-ui-u5-scope