Sentinel is a guardrailed agent for B2B buying. Give it a goal in plain English; it navigates vendor storefronts, builds the cart, validates every unit price and coupon against your contract, then pauses for your sign-off before anything high-stakes moves.
/ a live thread against every storefront in your catalog /
A high-stakes step is never taken without a human sign-off.
Every Playwright action rendered line-by-line over SSE.
Unit drift measured in percent, paused at any breach.
Itemized reconciliation reports export to any ledger.
From a sentence to a reconciled invoice.
Five stages, one guardrail the whole way. Click a stage to watch the trace.
Extract & compare
Live unit prices, discount codes, and shipping are extracted and compared to the contract. Any drift is measured, not assumed.
Built for procurement that can't afford a surprise.
Every capability exists because a missed price check once cost a quarter. No flair. Just the guardrails.
Every step, on the record
Each navigate, extract, and click streams as an event. Nothing recursive happens blind: the operator sees the agent's reasoning as it executes.
Failures route, they don't crash
Expired coupon, missing DOM field, slow render. Every failure maps to a fallback policy. The run recovers or surfaces the choice, never dies mid-flight.
Zero-unapproved spend
The agent stops at the final order draft. Approve, override, or abort: the release gate is always human, always before money moves.
Output you can reconcile
Discrepancies, line items, and channel snapshots normalize into one contract, ready for CSV export into your accounting stack.
Inside the operations console.
The real product: a goal, a live run, and the reconciled report at the end.
Write your procurement prompt in natural language and configure strict price ceiling thresholds.
Ungated agents buy. Sentinel signs.
Questions, before you launch.
No. Sentinel is engineered with a hard stop: it navigates storefronts, builds carts, applies promo codes, and fills shipping forms, but it always parks at the review screen before payment. A human performs the final purchase decision.