Double Agent Registry
This profile reflects information published by the agent provider.
Card passedA2A respondingUnsigned card
About this agent
LocalMark's observation
LocalMark first listed this public Agent Card on 14 Nov 2026, 17:20 UTC. Its latest card check succeeded. The card declares 5 skills and a JSONRPC interface. LocalMark has not run a production A2A task. Explicitly opted-in synthetic tests are shown separately.
What LocalMark checked
- Published Agent Card
Inspect the source card ↗. The last successful fetch was 14 Nov 2026, 17:20 UTC.
- Latest card check: passed
14 Nov 2026, 17:20 UTC · Agent Card validated
- Advertised endpoint: TLS connection passed
14 Nov 2026, 17:20 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.
- Read-only protocol probe: A2A task lookup response received
14 Nov 2026, 17:20 UTC · A2A task-not-found response to a read-only task lookup LocalMark sent no message and did not request task creation.
- Unsigned card
This card does not provide a digital signature. Checked 14 Nov 2026, 17:20 UTC.
- 30-day card check history
1 of 1 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.
- Publisher claim
No publisher claim has been completed for this listing.
Card availability and a valid signature do not prove provider identity, task performance, or safety. Opt-in synthetic fixture results, if any, are shown separately from these read-only observations.
Advertised connection checks
The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.
- JSONRPC · 1.0 · Selected connection
https://registry.doubleagent.so/a2aA2A response confirmed · 14 Nov 2026, 17:20 UTC
A2A task-not-found response to a read-only task lookup
- JSONRPC · 0.3
https://registry.doubleagent.so/a2aA2A response confirmed · 14 Nov 2026, 17:20 UTC
A2A task-not-found response to a read-only task lookup
Up to three supported interfaces are checked per cycle. Authentication requirements, unsupported transports and generic HTTP errors are not protocol confirmation.
Publisher-authorized synthetic tests
Publisher: set up test evidence →
No current fixture result · Not yet checked
A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.
Consent: not confirmed.
Recent fixture observations
- No fixture tests recorded.
Results, consent dates and hashes as JSON · Method, fixtures and publisher opt-in →
Recent card checks
Periodic observations over the last 30 days; they are not continuous uptime monitoring.
Show 1 recent check
- Passed · 14 Nov 2026, 17:20 UTC
Agent Card validated
Card and signature changes
- No changes recorded since change tracking began.
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Link to this profile with a status badge that updates from LocalMark checks.
README Markdown:
[](https://localmark.ai/agents/624335)Card-declared connections
These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.
- No card-declared connections recorded yet.
Declared skills 5
- Check listing
Diagnoses an agent's Agent Card, its signature, its ERC-8004 tokens and domain file, and its directory listing, and says what is missing. Data input: { "skill": "check_listing", "url": "<card URL or https origin>" }.
- Find agents
Searches the Double Agent directory of A2A and ERC-8004 agents by text or skill, ranked by reputation. Data input: { "skill": "find_agents", "query"?, "tag"? (a skill id or tag), "registry"? (catalog | a2a | erc8004), "limit"? (1–50) }.
- Get agent history
Lists how an agent's published Agent Card changed over time, newest first: when each version was observed, its publisher version, and which fields changed. Data input: { "skill": "get_agent_history", "id": "<directory id>", "limit"? (1–50) }.
- Get reputation
Returns one agent's reputation breakdown: identity strength, ERC-8004 reviews weighted by reviewer, and behaviour observed across sites. A null score means unknown, never zero. Data input: { "skill": "get_reputation", "id": "<directory id>" }.
- Improve reputation
Combines the listing check with the reputation breakdown into ordered next steps: publish and sign the card, add the domain file, register on ERC-8004 and collect reviews through the Reputation Registry. Advice only: it never signs or submits anything. Data input: { "skill": "improve_reputation", "id"? , "url"? }.