{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/media-buy/accept-proposal-request.json",
  "title": "Accept Proposal Request",
  "description": "Accept one committed immutable proposal. Depending on proposal_kind, acceptance creates a MediaBuy, applies an amendment, or applies a negotiated cancellation. The proposal already contains the commercial terms, so callers do not repeat packages, dates, targeting, or creatives.",
  "x-tool-summary": "Accept a committed proposal to create or amend a media buy, or apply a negotiated cancellation.",
  "type": "object",
  "x-mutates-state": true,
  "x-governed-commitment": {
    "scope": "conditional",
    "triggers": [
      "creates_commitment",
      "increases_obligation",
      "extends_term",
      "resumes_execution",
      "reallocates_delivery"
    ],
    "exemptions": [
      "negotiated_cancellation",
      "decrease_only"
    ],
    "precedence": "trigger_overrides_exemption"
  },
  "x-operation-family": "accept_proposal",
  "x-added-in": "3.2.0",
  "x-legacy-fallback": {
    "tool": "create_media_buy",
    "mode": "orchestrated"
  },
  "properties": {
    "adcp_version": {
      "$ref": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/core/version-envelope.json#/properties/adcp_version"
    },
    "idempotency_key": {
      "type": "string",
      "minLength": 16,
      "maxLength": 255,
      "pattern": "^[A-Za-z0-9_.:-]{16,255}$"
    },
    "account": {
      "$ref": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/core/canonical-account-ref.json"
    },
    "proposal_id": {
      "type": "string",
      "minLength": 1,
      "x-entity": "proposal"
    },
    "proposal_terms_digest": {
      "type": "string",
      "pattern": "^sha256:[A-Za-z0-9_-]{43}$",
      "description": "terms_digest from the committed proposal. The seller MUST atomically verify both ID and digest before acceptance."
    },
    "total_budget": {
      "type": "object",
      "description": "Execution amount when the committed proposal defines scalable percentages or constraints rather than a fixed total.",
      "properties": {
        "amount": {
          "type": "number",
          "minimum": 0
        },
        "currency": {
          "type": "string",
          "pattern": "^[A-Z]{3}$"
        }
      },
      "required": [
        "amount",
        "currency"
      ],
      "additionalProperties": false
    },
    "daily_budget_cap": {
      "type": "number",
      "minimum": 0,
      "description": "Optional hard aggregate daily spend ceiling applied when the committed proposal is accepted. It constrains execution without changing the proposal's negotiated pricing."
    },
    "budget_cap_timezone": {
      "type": "string",
      "minLength": 1,
      "description": "Optional shared IANA cap-day timezone override. Requires buyer_timezone_override support. When omitted, budget_capping.timezone_basis selects Account.timezone or fixed_timezone."
    },
    "io_acceptance": {
      "type": "object",
      "properties": {
        "io_id": {
          "type": "string",
          "minLength": 1
        },
        "accepted_at": {
          "type": "string",
          "format": "date-time"
        },
        "signatory": {
          "type": "string",
          "minLength": 1,
          "maxLength": 250
        },
        "signature_id": {
          "type": "string",
          "minLength": 1
        }
      },
      "required": [
        "io_id",
        "accepted_at",
        "signatory"
      ],
      "additionalProperties": false
    },
    "purchase_order_ref": {
      "type": "string",
      "minLength": 1,
      "maxLength": 255
    },
    "governance_context": {
      "type": "string",
      "minLength": 1,
      "maxLength": 4096
    },
    "push_notification_config": {
      "$ref": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/core/push-notification-config.json"
    },
    "reporting_webhook": {
      "$ref": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/core/reporting-webhook.json",
      "description": "Optional reporting delivery configuration established atomically when the proposal is accepted. This is execution metadata and does not alter the accepted commercial terms digest."
    },
    "opportunity": {
      "allOf": [
        {
          "$ref": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/core/opportunity-context.json"
        },
        {
          "properties": {
            "status": {
              "const": "closed"
            }
          },
          "if": {
            "properties": {
              "status": {
                "const": "closed"
              }
            },
            "required": [
              "status"
            ]
          },
          "then": {
            "properties": {
              "close_reason": {
                "const": "accepted_with_seller"
              }
            }
          }
        }
      ],
      "description": "Optional planning-cycle closure. Success infers closed with accepted_with_seller when status is omitted. If the proposal carries opportunity_id, a supplied ID MUST match; the accepted proposal preserves that association."
    },
    "context": {
      "$ref": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/core/context.json"
    },
    "ext": {
      "$ref": "https://adcontextprotocol.org/schemas/3.2.0-beta.0/core/ext.json"
    }
  },
  "required": [
    "idempotency_key",
    "account",
    "proposal_id",
    "proposal_terms_digest"
  ],
  "additionalProperties": false,
  "not": {
    "anyOf": [
      {
        "required": [
          "packages"
        ]
      },
      {
        "required": [
          "purchases"
        ]
      },
      {
        "required": [
          "creatives"
        ]
      },
      {
        "required": [
          "creative_assignments"
        ]
      }
    ]
  }
}