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.
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Trace · registry probe · T1 reproducible run

Registry probe of GPT Researcher's discovery endpoints

GPT Researcher · 2026-10-11 · 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. A2A verified (unsigned)

EntryGET on the publisher's well-known discovery paths
Actionsserved Agent2Agent (A2A) document
Egressno
Human approval—
Secrets touchedno
Bundlebundles/tr_st_fc8b4516d65443c1_270e94be · sha256:4166eff58760988ffe41b03b2f1a495264fb28ff022e82408e75f17532d937f3 · download (JSON)
Chainsha256:ec3a8d75bfd4f56a9a0387d4ca1f671e97b1932a4ef3a5f383fa532a772bb3e5
prev sha256:7d99852de7a9b0ee4eb692745eccc3716e9e260f6e96ca6be9e7a2bb4c8cabb4

Transcript

# Probe transcript — GPT Researcher

Agent `res_fc8b4516d65443c1` · publisher domain `gptr.dev` · 2026-10-11 · harness probe-1.0

## Agent2Agent (A2A)

- requested `https://gptr.dev/.well-known/agent-card.json`
- result: **verified**
- declared version:  (card 0.14.8)
- signed: no
- skills advertised: Deep research, Quick search, Write report, Get research sources

---
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.