API Evangelist enhancements for Agent Verification Utility

overlay: 1.0.0
info:
  title: API Evangelist enhancements for Agent Verification Utility
  version: 1.0.0
  description: >-
    Non-destructive overlay over the verbatim provider spec openapi/kgninja-dev-openapi.json (fetched
    2026-09-19 from https://agent-economy.kgninja.dev/openapi.json, ETag "11a50222…7cf1e"). The original is
    never edited. The one substantive action resolves the provider's relative servers[] entry ("/",
    "Relative to the current deployment origin") to the absolute origin the document is served from, so
    tooling that cannot resolve a relative server URL against the document location still finds the host;
    the rest records provenance and cross-links to the derived artifacts.
extends: openapi/kgninja-dev-openapi.json
x-apievangelist:
  generated: '2026-09-19'
  method: generated
  source: https://agent-economy.kgninja.dev/openapi.json
actions:
- target: $.servers
  description: Resolve the relative server "/" to the absolute deployment origin (the URL the document itself is served from). The provider's relative entry is retained as documentation in x-original-servers.
  update:
  - url: https://agent-economy.kgninja.dev
    description: Agent Verification Utility production origin (resolved from the provider's relative "/" server by API Evangelist; the same host serves the MCP endpoint at /mcp and the A2A endpoint at /a2a)
- target: $
  update:
    x-original-servers:
    - url: /
      description: Relative to the current deployment origin
- target: $.info
  update:
    x-apievangelist-provenance:
      fetched: '2026-09-19'
      url: https://agent-economy.kgninja.dev/openapi.json
      http_status: 200
      byte_identical_alias: https://agent-economy.kgninja.dev/.well-known/openapi.json
      operations: 44
      schemas: 47
    x-apievangelist-artifacts:
      authentication: authentication/kgninja-dev-authentication.yml
      conventions: conventions/kgninja-dev-conventions.yml
      errors: errors/kgninja-dev-problem-types.yml
      data_model: data-model/kgninja-dev-data-model.yml
      mcp: mcp/kgninja-dev-mcp.yml
      tool_crosswalk: mcp/kgninja-dev-tool-crosswalk.yml
      a2a: a2a/kgninja-dev-a2a.yml
    externalDocs:
      description: Deterministic JSON verification guide (agent-optimized Markdown available with Accept text/markdown)
      url: https://agent-economy.kgninja.dev/docs/deterministic-json-verification
- target: $.paths['/verify-evidence'].post
  description: Flag the one money-bearing operation for agent tooling; values come from the x402 manifest and the contract's own recourse schema.
  update:
    x-apievangelist-agent-notes:
      paid: true
      price: 10000 atomic USDC ($0.01) per call via x402 v2 exact on eip155:8453
      requires_precheck: POST /validate-request receipt digest in intent.precheck_receipt_digest (409 PRECHECK_REQUIRED otherwise)
      idempotency: no Idempotency-Key parameter; replay safety via the bound quote (X-Quote-ID or the quote identified by the signed payment payload)
      reversibility: none — recourse.re_evaluation_requires_new_payment is const true
- target: $.paths['/quote'].post
  update:
    x-apievangelist-agent-notes:
      paid: false
      idempotency: Idempotency-Key header required (16-128 chars); reuse with a different request hash returns 409
- target: $.paths['/validate-request'].post
  update:
    x-apievangelist-agent-notes:
      paid: false
      dry_run: true
      note: Creates no quote, transaction or payment and executes no assertion; its receipt digest is a prerequisite of every paid call.