55 lines
2.0 KiB
Markdown
55 lines
2.0 KiB
Markdown
# Diagnosis Agent 执行架构
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**更新日期**：2026-07-22
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**状态**：当前可运行架构
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## 1. 单 Agent 原则
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当前业务诊断只有一个 `Diagnosis Agent`。它使用框架 `ReactAgent` 完成规划、行动、观察和最终 Draft，但项目不在外层复制 ReAct 状态机，也不使用业务 Graph 或多角色协作链。
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## 2. 职责
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Diagnosis Agent：
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- 接收当前 query 与可选、受限的安全 PreviousTurn。
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- 自主选择只读 evidence Tool。
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- 根据 Agent projection 判断是否需要继续查询。
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- 输出结构化 `DiagnosisDraft`，每条 analysis 绑定 framework `tool_call_id`。
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- 证据不足时明确限制，不补造事实。
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Diagnosis Agent 不负责：
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- HTTP/SSE、Session/Run 生命周期和持久化。
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- 模型/Tool/Token/timeout/cancel 预算。
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- Tool 参数授权、raw response 投影或证据物理验真。
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- SemanticGuard 与最终发布决定。
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## 3. 执行序列
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```mermaid
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sequenceDiagram
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participant App as Chat Application
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participant Core as Harness Core
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participant Agent as Diagnosis Agent
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participant Tool as ACI Tool Boundary
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participant EG as EvidenceGuard
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participant SG as SemanticGuard
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participant Release as Release Policy
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App->>Core: start RunContext
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App->>Agent: query + safe previous_turn
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Agent->>Tool: tool name + framework tool_call_id + typed args
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Tool-->>Agent: bounded agent_result
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Agent-->>App: DiagnosisDraft
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App->>EG: Draft + current Run canonical invocations
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EG-->>App: verified snapshot or deterministic failure
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App->>SG: query + full Draft + verified snapshot
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SG-->>App: SUPPORTED / UNSUPPORTED
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App->>Release: decide public content
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Release-->>App: report or fixed fallback
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```
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## 4. PreviousTurn
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PreviousTurn 只来自同一 Session 最近一个 `DIAGNOSIS + SUCCESS + published_result`。Fallback、失败、取消、raw evidence 和完整历史都不能进入下一轮；字段与字节上限由 Harness 配置控制。
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