{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://aps.local/contracts/http.schema.json",
  "title": "HTTP payloads",
  "description": "HTTP 请求体与响应体的形状。端点、方法与状态码见 docs/spec/protocol.md；本文件只定义数据形状。带自己文件的类型（会话、能力、回执、审批请求、错误）不在这里重复。",
  "$defs": {
    "HealthResponse": {
      "type": "object",
      "required": [
        "status",
        "version",
        "protocolVersion"
      ],
      "properties": {
        "status": {
          "const": "ok"
        },
        "version": {
          "type": "string"
        },
        "protocolVersion": {
          "type": "integer"
        }
      },
      "additionalProperties": false
    },
    "MeResponse": {
      "type": "object",
      "required": [
        "userId",
        "tenantId",
        "displayName",
        "clientKind"
      ],
      "properties": {
        "userId": {
          "type": "string"
        },
        "tenantId": {
          "type": "string"
        },
        "displayName": {
          "type": "string"
        },
        "clientKind": {
          "type": "string",
          "enum": [
            "desktop",
            "browser"
          ]
        }
      },
      "additionalProperties": false
    },
    "ProjectSummary": {
      "type": "object",
      "required": [
        "projectId",
        "name",
        "status",
        "writable"
      ],
      "properties": {
        "projectId": {
          "type": "string"
        },
        "name": {
          "type": "string"
        },
        "status": {
          "type": "string",
          "enum": [
            "active",
            "archived"
          ]
        },
        "writable": {
          "type": "boolean",
          "description": "项目内可写；个人会话只读（ADR-0003）"
        }
      },
      "additionalProperties": false
    },
    "ProjectListResponse": {
      "type": "object",
      "required": [
        "projects"
      ],
      "properties": {
        "projects": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/ProjectSummary"
          }
        }
      },
      "additionalProperties": false
    },
    "CapabilitiesResponse": {
      "type": "object",
      "required": [
        "capabilities"
      ],
      "properties": {
        "capabilities": {
          "type": "array",
          "items": {
            "$ref": "capability.schema.json#/$defs/CapabilitySummary"
          }
        }
      },
      "additionalProperties": false
    },
    "ChatMessage": {
      "type": "object",
      "required": [
        "messageId",
        "role",
        "ts",
        "text"
      ],
      "properties": {
        "messageId": {
          "type": "string"
        },
        "role": {
          "type": "string",
          "enum": [
            "user",
            "assistant",
            "system"
          ]
        },
        "ts": {
          "type": "integer"
        },
        "text": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "CreateSessionRequest": {
      "type": "object",
      "required": [
        "scope"
      ],
      "properties": {
        "projectId": {
          "type": "string"
        },
        "scope": {
          "type": "string",
          "enum": [
            "personal",
            "project"
          ]
        },
        "title": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "CreateSessionResponse": {
      "type": "object",
      "required": [
        "session"
      ],
      "properties": {
        "session": {
          "$ref": "session.schema.json#/$defs/SessionSummary"
        }
      },
      "additionalProperties": false
    },
    "SessionListResponse": {
      "type": "object",
      "required": [
        "sessions"
      ],
      "properties": {
        "sessions": {
          "type": "array",
          "items": {
            "$ref": "session.schema.json#/$defs/SessionSummary"
          }
        }
      },
      "additionalProperties": false
    },
    "SessionDetailResponse": {
      "type": "object",
      "required": [
        "session",
        "messages"
      ],
      "properties": {
        "session": {
          "$ref": "session.schema.json#/$defs/SessionSummary"
        },
        "messages": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/ChatMessage"
          }
        }
      },
      "additionalProperties": false
    },
    "SendMessageRequest": {
      "type": "object",
      "required": [
        "text",
        "idempotencyKey"
      ],
      "properties": {
        "text": {
          "type": "string",
          "minLength": 1
        },
        "idempotencyKey": {
          "type": "string",
          "minLength": 8
        }
      },
      "additionalProperties": false
    },
    "SendMessageResponse": {
      "type": "object",
      "required": [
        "accepted",
        "messageId",
        "runId"
      ],
      "properties": {
        "accepted": {
          "const": true
        },
        "messageId": {
          "type": "string"
        },
        "runId": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "CancelResponse": {
      "type": "object",
      "required": [
        "state"
      ],
      "properties": {
        "state": {
          "type": "string",
          "enum": [
            "cancelling",
            "idle"
          ]
        }
      },
      "additionalProperties": false
    },
    "ExecutionTraceEntry": {
      "type": "object",
      "required": [
        "seq",
        "ts",
        "event",
        "actorUserId"
      ],
      "properties": {
        "seq": {
          "type": "integer"
        },
        "ts": {
          "type": "integer"
        },
        "event": {
          "type": "string"
        },
        "actorUserId": {
          "type": "string"
        },
        "capabilityId": {
          "type": "string"
        },
        "providerId": {
          "type": "string"
        },
        "paramsDigest": {
          "type": "string"
        },
        "decision": {
          "type": "string"
        },
        "detail": {
          "type": "object"
        }
      },
      "additionalProperties": false
    },
    "ExecutionApprovalRecord": {
      "type": "object",
      "required": [
        "approvalId",
        "status",
        "revision",
        "expiresAt"
      ],
      "properties": {
        "approvalId": {
          "type": "string"
        },
        "status": {
          "type": "string"
        },
        "decision": {
          "type": "string",
          "enum": [
            "approved",
            "rejected",
            "expired"
          ]
        },
        "decidedBy": {
          "type": "string"
        },
        "decidedAt": {
          "type": "integer"
        },
        "revision": {
          "type": "integer"
        },
        "expiresAt": {
          "type": "integer"
        }
      },
      "additionalProperties": false
    },
    "ExecutionTraceResponse": {
      "type": "object",
      "required": [
        "executionId",
        "approval",
        "entries",
        "chainOk"
      ],
      "properties": {
        "executionId": {
          "type": "string"
        },
        "approval": {
          "anyOf": [
            {
              "$ref": "#/$defs/ExecutionApprovalRecord"
            },
            {
              "type": "null"
            }
          ]
        },
        "entries": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/ExecutionTraceEntry"
          }
        },
        "chainOk": {
          "type": "boolean"
        },
        "receipt": {
          "$ref": "receipt.schema.json#/$defs/ExecutionReceipt"
        }
      },
      "additionalProperties": false
    },
    "ApprovalDecisionResponse": {
      "type": "object",
      "required": [
        "approvalId",
        "decision"
      ],
      "properties": {
        "approvalId": {
          "type": "string"
        },
        "decision": {
          "type": "string",
          "enum": [
            "approved",
            "rejected",
            "expired"
          ]
        },
        "receipt": {
          "$ref": "receipt.schema.json#/$defs/ExecutionReceipt"
        }
      },
      "additionalProperties": false
    },
    "BindingSummary": {
      "type": "object",
      "required": [
        "providerId",
        "accountId",
        "displayName",
        "status"
      ],
      "properties": {
        "providerId": {
          "type": "string"
        },
        "accountId": {
          "type": [
            "string",
            "null"
          ]
        },
        "displayName": {
          "type": [
            "string",
            "null"
          ]
        },
        "status": {
          "type": "string",
          "enum": [
            "active",
            "expired",
            "disabled",
            "unbound"
          ]
        },
        "authKind": {
          "type": "string",
          "enum": [
            "oauth",
            "password-exchange",
            "apikey"
          ]
        },
        "updatedAt": {
          "type": "integer"
        }
      },
      "additionalProperties": false
    },
    "BindingStartResponse": {
      "type": "object",
      "required": [
        "providerId",
        "authKind"
      ],
      "properties": {
        "providerId": {
          "type": "string"
        },
        "authKind": {
          "type": "string",
          "enum": [
            "oauth",
            "password-exchange",
            "apikey"
          ]
        },
        "authorizationUrl": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "BindingCompleteRequest": {
      "type": "object",
      "required": [
        "accountId"
      ],
      "properties": {
        "accountId": {
          "type": "string"
        },
        "password": {
          "type": "string"
        },
        "code": {
          "type": "string"
        },
        "state": {
          "type": "string"
        }
      },
      "additionalProperties": false
    },
    "BindingCompleteResponse": {
      "type": "object",
      "required": [
        "binding"
      ],
      "properties": {
        "binding": {
          "$ref": "#/$defs/BindingSummary"
        }
      },
      "additionalProperties": false
    },
    "BindingListResponse": {
      "type": "object",
      "required": [
        "bindings"
      ],
      "properties": {
        "bindings": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/BindingSummary"
          }
        }
      },
      "additionalProperties": false
    },
    "BindingDeleteResponse": {
      "type": "object",
      "required": [
        "providerId",
        "removed"
      ],
      "properties": {
        "providerId": {
          "type": "string"
        },
        "removed": {
          "type": "boolean"
        }
      },
      "additionalProperties": false
    }
  }
}