DELTA Witness · Trust Layer for Autonomous Actions

Preflight public inputs before an autonomous action

Guard an agent workflow by observing the source URL immediately before buying, publishing, deploying, or submitting.

The failure mode

An agent may plan from cached search results or an earlier page state. If price, eligibility, instructions, or terms change before execution, the action can be validly formed but based on stale input.

Machine workflow

Call DELTA Guard with the public URL and deterministic expectations. Continue only when safe is true; otherwise inspect changed, reason, diff, and the proof reference. Retries of the same settled request are idempotent.

POST https://delta-witness-api.ruphussten.workers.dev/v1/preflight
content-type: application/json

{"url":"https://example.com/terms","expected":{"contains":["Refund window: 30 days"]}}

Evidence boundary

DELTA certifies what its capture system observed and whether supplied rules matched. It does not certify that the publisher is honest or that a statement is legally correct.

Read the API guide · OpenAPI 3.1 · Live Guard quote