generated: '2026-09-19'
method: probed
source: https://agentdisco.io/.well-known/agent.json
description: >-
  A2A Agent Card observed at the pre-0.3 legacy path /.well-known/agent.json on agentdisco.io (the canonical
  /.well-known/agent-card.json returned 404). Grade is measured against the A2A 1.0.0 AgentCard object:
  'conformant' passes every structural check, 'near-conformant' is correctly shaped but omits optional
  fields, 'flavored' fails a hard check and is an agent card in spirit rather than in schema.
  Provider-published by construction - served from the provider's own host; nothing here is derived or
  generated. Agent Disco is itself a discoverability grader and publishes this card as dogfood (its llms.txt
  says so); the card points at the REST API and its OpenAPI rather than at an A2A JSON-RPC endpoint, so the
  agent is reachable over HTTP/OpenAPI, not over the A2A protocol.
discovery:
  path: /.well-known/agent.json
  canonical: false
  host: agentdisco.io
  canonical_path_status: 404
conformance:
  spec: A2A 1.0.0
  grade: flavored
  protocol_version: null
  preferred_transport: null
  deviations:
  - no-protocolVersion
  - legacy-path-agent.json
  - authentication.schemes-instead-of-securitySchemes
  - endpoints-array-instead-of-additionalInterfaces
  - url-is-website-not-a2a-endpoint
  - no-preferredTransport
  - no-defaultInputModes
  - no-defaultOutputModes
  - skills-without-tags
  checks:
    capabilities_is_object: true
    protocolVersion_present: false
    skills_is_array: true
card:
  name: Agent Disco
  description: >-
    Grade any public URL for AI-agent discoverability. Scans robots.txt, llms.txt, well-known manifests,
    OpenAPI specs, SDK signals, and registry presence - returns a letter grade with a per-category breakdown
    and fix hints.
  url: https://agentdisco.io
  version: 1.0.0
  provider: Starsol Ltd
  authentication: none (authentication.schemes = [none])
  capabilities: {streaming: false, pushNotifications: false, stateTransitionHistory: true}
  skills: 5
  skill_ids: [submit-scan, get-latest-grade, list-checks, embed-badge, colony-agent-login]
  endpoints:
  - {type: openapi, url: https://agentdisco.io/api/v1/openapi.json}
  - {type: https, url: https://agentdisco.io/api/v1}
  file: agentdisco-io-agent-card.json
x-evidence:
  fetched: '2026-09-19'
  url: https://agentdisco.io/.well-known/agent.json
  http_status: 200
  content_type: application/json
  cache_control: max-age=3600, public, stale-while-revalidate=86400
  note: Verbatim body saved alongside this manifest. No field inferred.