openapi: 3.2.0
info:
  title: VDA ACP Bundles API
  version: 0.1.0
  description: Agent Control Plane — governance-aware wrapper on git.
servers:
- url: https://acp.getvda.ai
tags:
- name: Bundles
paths:
  /bundles/{env}/active.json:
    get:
      summary: The active signed governance bundle (public; evaluator SDK)
      responses:
        '200':
          description: The active SignedBundle
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SignedBundle'
        '404':
          description: no active bundle for this environment
      tags:
      - Bundles
      operationId: getBundlesByEnvActiveJson
      x-operation-id-source: derived
  /bundles/{env}/versions/{version}:
    get:
      summary: A specific signed bundle version (public)
      responses:
        '200':
          description: The requested SignedBundle version
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SignedBundle'
        '404':
          description: no such version
      tags:
      - Bundles
      operationId: getBundlesByEnvVersionsByVersion
      x-operation-id-source: derived
components:
  schemas:
    BundleSignature:
      type: object
      required:
      - algorithm
      - value
      - keyId
      additionalProperties: false
      properties:
        algorithm:
          type: string
          enum:
          - Ed25519
        value:
          type: string
          description: base64url signature over the canonical manifest bytes.
        keyId:
          type: string
          description: Must equal manifest.keyId.
    BundleManifest:
      type: object
      required:
      - schema
      - version
      - environment
      - commitSha
      - contentHash
      - did
      - keyId
      - files
      additionalProperties: false
      properties:
        schema:
          type: string
          enum:
          - acp.bundle/1
        version:
          type: string
          description: Monotonic per-environment version, assigned by the pipeline (not a timestamp).
        environment:
          type: string
        commitSha:
          type: string
          description: The git commit this bundle was built from — the tie to authoring provenance.
        contentHash:
          type: string
          pattern: ^sha256:[0-9a-f]{64}$
          description: Binds the file set to the manifest.
        did:
          type: string
          description: ACP's DID; resolve it for the bundle-signing key.
        keyId:
          type: string
          description: The verification method that signs bundles, e.g. did:web:acp.getvda.ai#key-3.
        files:
          type: array
          items:
            type: string
          description: Governance file names included, sorted.
    SignedBundle:
      type: object
      required:
      - manifest
      - files
      - signature
      additionalProperties: false
      description: 'Deterministic by design: the same commit + version always produces the same bytes and the same signature. Verify by canonicalising `manifest`, checking `signature.value` against the key `manifest.keyId` resolves to, then confirming sha256 of the canonical `files` equals `manifest.contentHash`. Fail-static: a bundle that does not verify is not used.'
      properties:
        manifest:
          $ref: '#/components/schemas/BundleManifest'
        files:
          type: object
          description: Governance file name → raw VDA-MD source. Capability/condition/authority/scope are parsed from these bodies.
          additionalProperties:
            type: string
        signature:
          $ref: '#/components/schemas/BundleSignature'
  securitySchemes:
    witness_bearer:
      type: http
      scheme: bearer
      bearerFormat: wtn.<keyId>.<secret>