实现MCP任务结果提交稳定性映射

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# TH Hotel MCP Submit Payload Mapping
## 1. 文档信息
| 项目 | 内容 |
| --- | --- |
| 文档版本 | 0.1 |
| 日期 | 2026-07-12 |
| 状态 | 已落地第一版 |
| 适用范围 | `th_hotel_submit_task_results` 的 V3/P0.1 payload adapter、schema validator 和一次提交规则 |
## 2. 核心原则
`th_hotel_submit_task_results` 接收的是 SuperAgent 已经冻结的业务结果。MCP 层只负责把业务结果转换为本系统可接收的提交 payload不重新解释业务含义不调用 Skill不根据字段名猜测任务类型。
目标链路:
```text
SuperAgent 业务结果
-> MCP Submit Payload Adapter
-> MCP Submit Schema Validator
-> ReservationAiTaskIntakeService
-> MCP tool result
```
实现位置:
```text
server/src/main/java/cn/nianxx/thhotel/integrations/mcp/superagent/service/SuperAgentMcpSubmitPayloadAdapter.java
server/src/main/java/cn/nianxx/thhotel/integrations/mcp/superagent/service/impl/SuperAgentMcpSubmitPayloadAdapterImpl.java
```
## 3. 支持的输入形态
| 形态 | 判断方式 | 处理方式 |
| --- | --- | --- |
| V3 业务根 | 同时包含 `source_message``message_events` | 先校验根结构、source message、event 必填字段和关系索引,再按 `message_events[]` 顺序映射 `source_event_index` |
| V3 S10/S99 入口通知 | 同时包含 `source_message``route_code` | 校验 S10/S99 根字段和 source message 后透传给业务入站服务 |
| V2 兼容任务结果 | 包含 `ai_task_results` | 保留旧 `source_message_id + ai_task_results[]` 兼容路径 |
未知根字段会在 MCP 层被拒绝,错误码为 `MCP_SUBMIT_PAYLOAD_INVALID`
`source_message_id` 缺失属于既有基础设施输入错误MCP adapter 不改写该错误通道;业务入站服务会返回 `MISSING_SOURCE_MESSAGE_ID`
## 4. source_message_id 定义
| 字段 | 规则 |
| --- | --- |
| `source_message.source_message_id` | V3 必填;必须来自 AgentBus 原始 payload 的外部消息 ID对应 `platform_source_message_inbox.external_message_id` |
| `source_message_id` | V2 兼容必填;同样对应 `platform_source_message_inbox.external_message_id` |
| `hotel_id` | SuperAgent 正式提交不需要传;本系统按平台唯一 ACTIVE 酒店解析 |
`source_message_id` 不是本系统数据库主键,也不是 `platform_source_message_inbox.id`
## 5. source_event_index 映射
SuperAgent 业务结果中的 `E1``E_CHILD_1``E_PARENT` 等值只是 Agent 内部事件 ID不能直接当成本系统的 `source_event_index`
MCP adapter 按 `message_events[]` 数组顺序生成一基数字索引:
| 业务事件 ID | 数组位置 | 本系统 `source_event_index` |
| --- | --- | --- |
| `E_CHILD_1` | 第 1 个 event | `1` |
| `E_CHILD_2` | 第 2 个 event | `2` |
| `E_PARENT` | 第 3 个 event | `3` |
| `E_TRACE` | 第 4 个 event | `4` |
映射规则:
- `message_events[].source_event_index` 输出为数字。
- `related_source_event_index` 输出为字符串数字,例如 `"1"`
- `parent_source_event_index` 输出为数字。
- `related_source_event_indices[]` 输出为字符串数字数组,保持原顺序。
- 悬空引用、重复引用、缺失事件 ID 都在 MCP 层拒绝。
## 6. ai_task_results[] 兼容 item schema
V2 兼容路径仍保留,`ai_task_results[]` item 以 REST 总契约为准,第一版 MCP schema 只暴露 object但业务入站会校验核心字段。
建议 item 结构:
```json
{
"source_event_index": 1,
"catalog_code": "S01",
"skill_id": "S01_new_booking_skill",
"result_type": "normal_task",
"task_type": "New Booking",
"task_subtype": "new_fit_reservation",
"current_or_history": "current",
"case_keys": {
"group_code": null,
"confirmation_number": null,
"reservation_number": null,
"block_code": null
},
"relevant_message_excerpt": "Please create a new booking.",
"attachments": [],
"file_references": [],
"context_used": {},
"extracted_fields": {},
"manual_review": null,
"additional_operations": [],
"idempotency_key": null
}
```
新数据优先使用 V3 业务根或 V3 S10/S99不建议继续新增 V2 `ai_task_results[]`
## 7. extraction_warnings 规则
| 形态 | 规则 |
| --- | --- |
| V3 业务根 | `extraction_warnings` 必须存在且为数组,无警告传 `[]` |
| V2 兼容 | `extraction_warnings` 可存在且为数组;缺省由业务层按空数组处理 |
MCP 层不解释 warning 语义,不因为 warning 自动创建任务。
## 8. 成功示例Parent Split
提交给 MCP tool 的业务结果可以使用 Agent 内部事件 ID
```json
{
"source_message": {
"source_message_id": "mail-20260712-parent-split-001",
"subject": "Parent split booking request",
"from": "agent@example.test",
"cc": [],
"received_at": "2026-07-12T04:00:00Z",
"source_channel": "Email"
},
"message_events": [
{
"event_type": "New Booking",
"event_role": "travel_agent_request",
"source_event_index": "E_CHILD_1",
"current_or_history": "current",
"case_keys": {
"group_code": "CHILD-A",
"confirmation_number": null,
"reservation_number": null,
"block_code": null
},
"relevant_message_excerpt": "Create child group A.",
"attachments": [],
"file_references": [],
"context_used": {},
"extracted_fields": {
"booking_object_type": "Group Block"
},
"manual_review": null
},
{
"event_type": "New Booking",
"event_role": "travel_agent_request",
"source_event_index": "E_CHILD_2",
"current_or_history": "current",
"case_keys": {
"group_code": "CHILD-B",
"confirmation_number": null,
"reservation_number": null,
"block_code": null
},
"relevant_message_excerpt": "Create child group B.",
"attachments": [],
"file_references": [],
"context_used": {},
"extracted_fields": {
"booking_object_type": "Group Block"
},
"manual_review": null
},
{
"event_type": "Cancel Allotment",
"event_role": "travel_agent_request",
"source_event_index": "E_PARENT",
"current_or_history": "current",
"case_keys": {
"group_code": "PARENT",
"confirmation_number": null,
"reservation_number": null,
"block_code": "PARENT"
},
"relevant_message_excerpt": "Release parent after child split.",
"attachments": [],
"file_references": [],
"context_used": {},
"related_event_type": "New Booking",
"requires_downstream_hard_validation": true,
"related_source_event_indices": ["E_CHILD_1", "E_CHILD_2"],
"extracted_fields": {
"relationship_type": "linked_parent_release_after_child_split",
"parent_group_code": "PARENT",
"cancel_scope": "entire_allotment_control_block",
"parent_release_or_cancel_candidate": true,
"release_reason": "parent_to_child_allocation_split",
"allocation_split_from_parent": true,
"child_group_codes": ["CHILD-A", "CHILD-B"]
},
"manual_review": null
}
],
"case_candidates": [],
"extraction_warnings": [],
"unhandled_current_intents": []
}
```
MCP adapter 进入业务层前会把父事件关系映射为:
```json
{
"source_event_index": 3,
"related_source_event_indices": ["1", "2"]
}
```
## 9. 成功示例:跨 Child Trace
当 Trace 覆盖完整 Parent split 的全部 Child 时,不能只绑定第一个 Child。业务结果应保留全部 Child 引用:
```json
{
"event_type": "Trace",
"source_event_index": "E_TRACE",
"related_source_event_indices": ["E_CHILD_1", "E_CHILD_2"],
"extracted_fields": {
"trace_subtype": "general_request"
}
}
```
MCP adapter 会把它映射为:
```json
{
"source_event_index": 4,
"related_source_event_indices": ["1", "2"]
}
```
## 10. 拒绝示例
未知字段:
```json
{
"source_message": {},
"message_events": [],
"case_candidates": [],
"extraction_warnings": [],
"unhandled_current_intents": [],
"unexpected_root": true
}
```
返回:
```json
{
"isError": true,
"structuredContent": {
"success": false,
"error": {
"code": "MCP_SUBMIT_PAYLOAD_INVALID",
"details": {
"field": "unexpected_root"
}
}
}
}
```
悬空关系:
```json
{
"related_source_event_indices": ["E_CHILD_1", "E_UNKNOWN_CHILD"]
}
```
同样返回 `MCP_SUBMIT_PAYLOAD_INVALID``details.field=related_source_event_indices`,不会调用业务写入 Service。
## 11. 一次提交和失败不重试
当前 MCP endpoint 与后端业务 Service 同进程:
- adapter 校验失败时,不调用 `ReservationAiTaskIntakeService`
- adapter 校验通过后,只调用一次 `ReservationAiTaskIntakeService.accept`
- MCP endpoint 不做自动重试。
- 业务结果不会因为 MCP 响应被回写或污染。
当前回归测试:
```text
./mvnw -Dtest=SuperAgentMcpControllerTest,SuperAgentMcpSubmitEnabledControllerTest test
```
覆盖内容:
- `tools/list` 暴露 V3 submit schema。
- 缺失 `source_message_id` 保持既有 `MISSING_SOURCE_MESSAGE_ID` 错误。
- 未知根字段在业务层前被拒绝。
- 悬空 `related_source_event_indices` 在业务层前被拒绝。
- 重复 `related_source_event_indices` 在业务层前被拒绝。
- `E_CHILD_1/E_CHILD_2/E_PARENT` 按数组顺序映射为 `1/2/3`
- 合法 Parent split 只创建一个 AI batch并返回 `accepted_count=3`