Reference implementation Data compiled from public sources as of 2026-10-26. Not an assessment, certification or recommendation. Confirm current status with the vendor and the issuing body.
AgentDossier · AI Agent Registry Find agents you can actually trust - public or inside your enterprise.
Trace · registry probe · T1 reproducible run

Registry probe of mcp's discovery endpoints

mcp · 2026-10-19 · AgentDossier refresh · harness probe-1.0

Scenario. Fetch and validate the ARD manifest, A2A agent card and MCP server card at the publisher's well-known paths

Observed. ARD invalid (1 validation error)

EntryGET on the publisher's well-known discovery paths
Actionsserved Agentic Resource Discovery (ARD) document
Egressno
Human approval—
Secrets touchedno
Bundlebundles/tr_st_39fc82a9e120c340_cf83e5ed · sha256:1b6ef22071b1f64b6c8103b8641cbfec8f1e7a79c6d2a6738f642298d21ed2d0 · download (JSON)
Chainsha256:62f9c6835b0965171dc420fface56f939ece1dda2711cdcb5435c324c8b646e9
prev sha256:6e9bd231c4f63a92914c87b662b8232b0ab46183f2e6149aa874611b9241dcb2

Transcript

# Probe transcript — mcp

Agent `res_39fc82a9e120c340` · publisher domain `agentsindex.ai` · 2026-10-19 · harness probe-1.0

## Agentic Resource Discovery (ARD)

- requested `https://agentsindex.ai/.well-known/ai-catalog.json`
- result: **invalid**
- validation error: missing required term 'displayName'
- warning: representativeQueries should contain 2-5 examples (entry will be hard to find by search)

---
Observation only: the registry fetched public well-known paths and validated the documents against the protocol specifications. No credentials, no message exchange beyond discovery, nothing written.

Produced automatically on every refresh; a new bundle is written only when the observation changes

A trace describes one version on one date. It is evidence of behaviour, never a certification. Dispute it through the agent's dossier; corrections are appended, never overwritten.