Every other signal in this rubric measures what an institution declares outward. Agent Verification Posture measures the return path: can the institution identify who is arriving?
Until recently it could not. A user-agent string is a claim, not a credential, and an IP allowlist is a guess. As of 2026, agents sign requests cryptographically using HTTP Message Signatures (RFC 9421) with per-agent keys and published key directories, and the payment networks have adopted that proof as the front door to agentic commerce. Verification has moved from impossible to, for most institutions behind a modern CDN, a configuration setting.
Four postures, ascending: Blind (all traffic treated as human; metrics corrupted by an unknown amount), Filtering (sorted by spoofable self-reported signals), Verifying (signatures validated; counterparty known), Reciprocal (identity published and arriving identity verified, treated as one system).
This is an entity signal rather than a security one. Signal Provenance cannot close its chain without a named counterparty, and recognition monitoring stays inferential until crawl events are directly observable per agent. See The Verified Agent Layer.
Move from Filtering to Verifying — for most CDN-fronted properties this is a dashboard setting, not a project.
Separate verified agent traffic from general bot traffic in analytics before drawing any conclusion about demand.
Correlate verified crawl events against subsequent model representation; this is what closes the Validation Loop.
Treat progression to Reciprocal as a programme requiring an actual agentic revenue thesis, not a default.
Track the standardisation path — the specification is on an IETF track and not yet settled; avoid vendor-specific dependencies.
Do not conflate transport-layer verification with epistemic trust. Verified agents are not verified truth.
Treating all inbound traffic as human, leaving engagement metrics corrupted by an unmeasured share of agent activity.
Sorting agents by user-agent string or IP range — signals the sender chose to emit and can trivially change.
Enabling verification at the edge but never correlating verified crawl events against how the operator's model subsequently represents the institution.
Reading agent verification as a security control and routing it to the security team, where it never touches the entity programme.
Assuming verification addresses ontological security — it hardens the retrieval channel and does nothing about fabricated entities in the graph.
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