1. Parse Intent
Regex fast path matches `cancel_subscription` and `create_purchase_order`.
Storyboard Scene 6
NL Action Gate: Plain-English Commands With Guardrails
Target: 0:30
Natural Language Command
"Cancel subscription SUB-123 and create a purchase order for Acme Corp"
2. LLM Fallback
Claude Haiku fallback confirms arguments and normalizes vendor name.
3. Guardrail Check
`ACTION_PARAM_WHITELIST` filters parameters before dispatch.
Dispatch 1
POST /api/sync-central/subscriptions/SUB-123/cancel
Result: `status=queued` with audit event `ACT-98122`.
Dispatch 2
POST /api/supplier-central/purchase-orders
Result: `PO-44710` created after fuzzy match `Acme Corp`.
Key point: "Cancel a subscription in plain English, with policy-grade controls."