generated: '2026-09-11'
method: probed
source: https://delta-witness-api.ruphussten.workers.dev/.well-known/agent.json
discovery:
  path: /.well-known/agent.json
  canonical: false
  host: delta-witness-api.ruphussten.workers.dev
  note: Served at the legacy pre-0.3 /.well-known/agent.json path; the A2A 1.0 canonical path /.well-known/agent-card.json returns 404 on this host.
x-evidence:
  fetched: '2026-09-11'
  url: https://delta-witness-api.ruphussten.workers.dev/.well-known/agent.json
  http_status: 200
  content_type: application/json
card_file: delta-witness-agent-card.json
protocol_version: 0.2.0
deviations:
- No `capabilities` object present (A2A 1.0 requires capabilities to be an object) — hard failure, so the card is graded flavored rather than conformant/near-conformant.
- protocolVersion is 0.2.0, a pre-1.0 A2A schema.
- 'Card carries non-standard vendor extensions instead of the 1.0 shape: top-level `protocols`, `pricing`, `payments.x402`, `intents[]`, and `payout_address`. These describe a real x402/USDC-on-Base payment posture but are not part of the A2A AgentCard schema.'
present_fields:
- protocolVersion
- name
- url
- version
- defaultInputModes
- defaultOutputModes
- skills (array of 3)
- description
skills:
- id: capture
  name: Capture public page state
- id: preflight
  name: Preflight verification
- id: guarded-action-pilot
  name: Guarded Action Pilot
payment:
  protocol: x402
  network: base
  asset: USDC
  recipient: '0x1990e21bc219696ff7fbc26527dbaed335ac6367'
  facilitator: https://facilitator.payai.network
card:
  file: a2a/delta-witness-agent-card.json
conformance:
  grade: flavored