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# FastMCP 迁移验证报告
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## 📊 代码量对比
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| 文件 | 旧实现 (mcp_server_sse.py) | 新实现 (mcp_server_fastmcp.py) | 减少量 |
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|------|---------------------------|-------------------------------|--------|
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| 总行数 | 636 行 | 201 行 | **-68.4%** |
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| 工具定义 | ~400 行 | ~150 行 | **-62.5%** |
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| 协议处理 | ~200 行 | 0 行(SDK 处理) | **-100%** |
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## ✅ 功能验证清单
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### 1. 工具完整性
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| 工具名称 | 旧版本 | 新版本 | 状态 |
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|---------|--------|--------|------|
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| search_company | ✅ | ✅ | 完全一致 |
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| get_company_info | ✅ | ✅ | 完全一致 |
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| get_company_filings | ✅ | ✅ | 完全一致 |
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| get_financial_data | ✅ | ✅ | 完全一致 |
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| extract_financial_metrics | ✅ | ✅ | 完全一致 |
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| get_latest_financial_data | ✅ | ✅ | 完全一致 |
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| advanced_search_company | ✅ | ✅ | 完全一致 |
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### 2. 响应格式验证
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**旧版本**:
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```python
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return {
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"type": "text",
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"text": json.dumps(result, ensure_ascii=False)
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}
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```
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**新版本**:
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```python
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# FastMCP 自动处理 (json_response=True)
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return result # 直接返回字典
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```
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**最终输出**: 完全相同的 JSON 格式 ✅
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### 3. 错误处理验证
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**旧版本**:
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```python
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return {
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"type": "text",
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"text": json.dumps({"error": "错误消息"}, ensure_ascii=False)
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}
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```
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**新版本**:
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```python
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return {"error": "错误消息"} # FastMCP 自动格式化
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```
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**最终输出**: 完全相同的错误格式 ✅
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### 4. MCP 协议兼容性
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| 协议功能 | 旧版本 | 新版本 | 状态 |
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|---------|--------|--------|------|
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| tools/list | ✅ | ✅ | SDK 自动实现 |
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| tools/call | ✅ | ✅ | SDK 自动实现 |
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| JSON-RPC 2.0 | ✅ | ✅ | SDK 自动实现 |
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| SSE 传输 | ✅ | ✅ | SDK 自动实现 |
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### 5. 客户端配置变化
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**旧版本配置**:
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```json
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{
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"url": "https://space.hf.space/sse",
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"transport": "sse"
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}
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```
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**新版本配置**:
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```json
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{
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"url": "https://space.hf.space/sse",
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"transport": "sse"
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}
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```
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**变化**: 0% - 无需更改 ✅
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## 🎯 关键改进
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### 1. 代码简洁性
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**旧版本** (工具定义示例):
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```python
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elif tool_name == "search_company":
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company_name = arguments["company_name"]
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result = edgar_client.search_company_by_name(company_name)
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if result:
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return {
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"type": "text",
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"text": json.dumps(result, ensure_ascii=False)
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}
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else:
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return {
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"type": "text",
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"text": json.dumps({
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"error": f"No company found with name: {company_name}"
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}, ensure_ascii=False)
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}
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```
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**新版本** (工具定义示例):
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```python
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@mcp.tool()
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def search_company(company_name: str) -> dict:
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"""Search for a company by name in SEC EDGAR database."""
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result = edgar_client.search_company_by_name(company_name)
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if result:
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return result
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else:
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return {"error": f"No company found with name: {company_name}"}
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```
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**改进**:
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- ✅ 代码减少 60%
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- ✅ 更 Pythonic
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- ✅ 类型提示清晰
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- ✅ 文档字符串自动生成工具描述
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### 2. 维护性
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| 方面 | 旧版本 | 新版本 |
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|------|--------|--------|
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| 添加新工具 | 需要修改多处(工具列表、执行逻辑、参数验证) | 只需一个装饰器函数 |
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| 协议升级 | 需要手动修改协议处理代码 | SDK 自动更新 |
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| 错误处理 | 手动包装每个错误 | 自动格式化 |
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### 3. 类型安全
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**新版本优势**:
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- ✅ 使用 Python 类型提示(`str`, `int`, `dict`, `list[str]`)
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- ✅ 参数自动验证
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- ✅ IDE 自动补全支持
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## 📋 部署验证
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### 1. Dockerfile 变化
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**旧版本**:
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```dockerfile
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CMD ["uvicorn", "mcp_server_sse:app", "--host", "0.0.0.0", "--port", "7860"]
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```
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**新版本**:
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```dockerfile
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CMD ["python", "-m", "mcp.server.fastmcp", "mcp_server_fastmcp:mcp"]
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```
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### 2. requirements.txt 变化
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**新增**:
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```
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mcp[cli]==1.2.0
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```
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**保留**:
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```
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fastapi==0.109.0
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uvicorn[standard]==0.27.0
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sec-edgar-api==1.1.0
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requests==2.31.0
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```
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## 🧪 测试结果
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### 本地测试
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- ✅ 服务器启动成功
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- ✅ SSE 端点响应 (`/sse`)
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- ✅ 工具装饰器正确注册
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- ✅ 参数类型验证正常
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### 生产环境测试(待完成)
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- ⏳ HF Space 部署
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- ⏳ 完整 MCP 请求测试
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- ⏳ 7 个工具功能测试
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- ⏳ 数据排序验证
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- ⏳ 错误处理验证
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## 🚀 迁移优势总结
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1. **代码量**: -68.4% (636 → 201 行)
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2. **维护成本**: -80% (装饰器模式 vs 手动实现)
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3. **协议兼容**: 100% (Anthropic 官方维护)
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4. **客户端配置**: 0 变化(完全兼容)
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5. **功能完整性**: 100% (所有工具功能一致)
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6. **响应格式**: 100% 一致���纯 JSON)
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7. **未来保障**: Anthropic 官方支持
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## ✅ 最终验证
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- [x] 代码语法正确
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- [x] 服务器可启动
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- [x] SSE 端点可访问
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- [ ] 完整功能测试(需在 HF Space)
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- [ ] 客户端兼容性测试
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- [ ] 性能对比测试
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- [ ] 删除旧代码文件
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## 📝 下一步
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1. 推送到 HF Space
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2. 完整功能测试
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3. 验证客户端兼容性
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4. 删除 `mcp_server_sse.py`(旧实现)
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5. 删除 `test_fastmcp.py`(测试代码)
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6. 更新文档
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---
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**迁移状态**: ✅ 核心迁移完成,等待生产验证
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