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WeKnora deployment source with the reviewed wiki identity, summary and recovery fixes
2026-09-22 16:19:06 +08:00

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MCP 工具人工审核(危险调用)

对应需求:智能体调用 MCP 工具前可中断,待人工确认后再执行(GitHub #1173)。

行为说明

  1. 在 设置 → MCP 中连接测试成功后,在工具列表上打开 「需人工审核」 开关,即可为该工具打标。
  2. Agent 运行时若即将调用已打标的工具,会推送 tool_approval_required 事件,对话界面展示审批卡片(可编辑 JSON 参数)。
  3. 用户 通过 或 拒绝 后,后端恢复执行;拒绝时工具返回错误信息给模型,不会调用远端 MCP。
  4. 若超时未处理(默认 10 分钟,可通过配置 agent.tool_approval_timeout_seconds 调整),视为拒绝。

配置示例

任选一种:

1. config.yaml

agent:
  tool_approval_timeout_seconds: 600  # 可选,默认 600(秒)

2. 环境变量(优先级高于 yaml)

# 支持纯秒数或 Go duration(30s / 5m / 1h)
WEKNORA_AGENT_TOOL_APPROVAL_TIMEOUT=600

API

  • GET /api/v1/mcp-services/:id/tool-approvals — 列出已保存的审核配置
  • PUT /api/v1/mcp-services/:id/tool-approvals/:tool_name — 设置某工具是否需审核({"require_approval": true})
  • POST /api/v1/agent/tool-approvals/:pending_id — 在审批卡片中提交结果
    • body: {"decision":"approve"|"reject","modified_args":{...}可选,"reason":"..."可选}

部署与限制

  • 审批等待状态保存在进程内存 中:pending_id 仅对当前实例有效;进程重启后进行中的等待会失败(表现为拒绝/取消)。
  • 多副本部署:当配置了 REDIS_ADDR 时,Resolve 会通过 Redis Pub/Sub(频道 weknora:mcp_approval:resolve)跨实例转发,因此 SSE 与提交审批的 HTTP 请求落到不同实例也能正确唤醒等待者;未配置 Redis 时退化为单机模式,需要使用会话粘滞(sticky session)。
  • 审批等待不会被工具默认 60s 超时取消:审批阶段使用 round 级别的 ctx(不带 defaultToolExecTimeout),仅受 agent.tool_approval_timeout_seconds 与请求级取消控制。
  • 安全边界:审核通过后的参数仍由当前登录空间提交;请仅在可信环境下授予「通过」权限。