199 lines
5.2 KiB
Markdown
199 lines
5.2 KiB
Markdown
# Agent-Backend API 契约 (v2.6)
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Agent 通过 HTTP API 与黑板交互。本文档是 prompt 模板和后端路由的共同 Source of Truth。
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## 通用约定
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- Base URL: `http://{api_host}:{api_port}`
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- Content-Type: `application/json`
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- 错误响应格式(422/409):
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```json
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{
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"error": "error_code",
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"detail": "人类+Agent 可读的错误描述",
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"valid_values": { "field": ["allowed", "values"] },
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"hint": "修复建议"
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}
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```
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---
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## 1. POST /api/projects/{project_id}/tasks/{task_id}/outputs
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写入产出物。
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### 请求体
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| 字段 | 类型 | 必填 | 说明 |
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|------|------|------|------|
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| `agent` | string | ✅ | Agent ID(如 `zhangfei-dev`) |
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| `type` | string | ✅ | 产出类型。合法值:`code`, `document`, `data`, `config`, `other` |
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| `title` | string | ✅ | 产出标题(简要描述) |
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| `content` | string | ⬜ | 产出内容(文本直传模式)。与 `content_path` 二选一 |
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| `content_path` | string | ⬜ | 产出文件路径(路径引用模式)。与 `content` 二选一 |
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| `summary` | string | ⬜ | 内容摘要 |
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| `metadata` | object | ⬜ | 附加元数据 |
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### 行为
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- 如果传了 `content` 而没传 `content_path`:后端自动将内容写入 `artifacts/{task_id}/{title}` 并填充 `content_path`
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- `type` 的别名 `content_type` 也被接受(兼容),但优先用 `type`
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### 成功响应 (200)
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```json
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{"ok": true, "output_id": 42}
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```
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### 错误响应
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- **422**: 字段缺失或值不合法。`valid_values` 会列出合法值
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- **500**: 内部错误(不应出现,出现说明后端有 bug)
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### 示例
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```bash
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curl -X POST http://127.0.0.1:8083/api/projects/demo/tasks/task-001/outputs \
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-H 'Content-Type: application/json' \
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-d '{
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"agent": "zhangfei-dev",
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"type": "code",
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"title": "csv_sorter.py",
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"content": "import csv\nimport argparse\n...",
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"summary": "CSV排序小程序,支持按任意列降序/升序排序"
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}'
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```
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---
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## 2. POST /api/projects/{project_id}/tasks/{task_id}/status
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更新任务状态。
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### 状态机
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```
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pending ──→ claimed ──→ working ──→ review ──→ done
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│ │ │ │
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│ │ │ └──→ pending(驳回重做)
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│ │ ├──→ blocked ──→ pending
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│ │ ├──→ failed ──→ pending(重试)
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│ │ └──→ cancelled
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│ ├──→ pending(超时回收)
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│ └──→ cancelled
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└──→ cancelled
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```
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### 请求体
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| 字段 | 类型 | 必填 | 说明 |
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|------|------|------|------|
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| `status` | string | ✅ | 目标状态 |
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| `agent` | string | ✅ | Agent ID |
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| `detail` | string | ⬜ | 状态变更说明(失败原因、驳回理由等) |
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### Agent 常用转换
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| 从 | 到 | 何时 |
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|----|-----|------|
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| claimed | working | 开始执行任务 |
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| working | review | 完成任务,提交审查 |
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| working | failed | 执行失败 |
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### 成功响应 (200)
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```json
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{"ok": true, "old_status": "working", "new_status": "review"}
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```
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### 错误响应
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- **409**: 状态转换不合法。响应会包含合法的目标状态列表
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```json
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{
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"error": "invalid_transition",
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"detail": "Cannot transition from claimed to review",
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"valid_transitions": {"claimed": ["working", "pending", "cancelled"]},
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"hint": "You must go through 'working' before 'review'"
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}
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```
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### 示例
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```bash
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# 开始工作
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curl -X POST http://127.0.0.1:8083/api/projects/demo/tasks/task-001/status \
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-H 'Content-Type: application/json' \
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-d '{"status": "working", "agent": "zhangfei-dev"}'
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# 完成,提交审查
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curl -X POST http://127.0.0.1:8083/api/projects/demo/tasks/task-001/status \
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-H 'Content-Type: application/json' \
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-d '{"status": "review", "agent": "zhangfei-dev"}'
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# 失败
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curl -X POST http://127.0.0.1:8083/api/projects/demo/tasks/task-001/status \
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-H 'Content-Type: application/json' \
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-d '{"status": "failed", "agent": "zhangfei-dev", "detail": "无法连接数据库"}'
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```
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---
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## 3. GET /api/projects/{project_id}/tasks/{task_id}?expand=all
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获取任务完整信息(含产出、评论、事件、审查)。
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### 查询参数
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| 参数 | 类型 | 说明 |
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|------|------|------|
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| `expand` | string | `all` 返回所有关联数据 |
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### 响应字段
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包含任务基本信息 + 聚合字段:
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| 字段 | 说明 |
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|------|------|
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| `status` | 当前状态 |
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| `outputs` | 产出列表 |
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| `reviews` | 审查记录 |
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| `events` | 事件时间线 |
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| `comments` | 评论 |
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| `review_status` | 审查状态(null/pending/approved/rejected/rebuttal) |
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---
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## 4. POST /api/projects/{project_id}/tasks/{task_id}/comments
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添加评论(Agent fallback 时可用)。
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### 请求体
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| 字段 | 类型 | 必填 | 说明 |
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|------|------|------|------|
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| `author` | string | ✅ | 评论者 |
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| `body` | string | ✅ | 评论内容 |
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---
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## 5. GET /api/projects/{project_id}/tasks
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列出项目任务。
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### 查询参数
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| 参数 | 类型 | 说明 |
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|------|------|------|
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| `status` | string | 按状态过滤 |
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| `assignee` | string | 按负责人过滤 |
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---
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## 变更日志
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| 日期 | 变更 |
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|------|------|
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| 2026-05-17 | 初始版本。基于端到端实测发现的问题制定 |
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