diagnosis-service
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@diagnosis-serviceSearch demo-service logs for error tr_001 and generate a diagnostic report"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Diagnosis Service
独立故障诊断 MCP 服务,作为可被任意业务服务接入的异常诊断中心:
业务服务通过 HTTP 推送异常日志。
诊断服务使用独立 MySQL 库
diagnosis_db保存日志、服务注册、静态代码索引、历史工单和诊断报告。Codex、Claude Desktop 或其他 MCP 客户端可通过
/mcp查询日志并生成诊断报告。demo-service/是随项目携带的外接测试服务,会随机制造 timeout 和空指针异常,用于验证接入链路。
Project Map
app/: 诊断服务 FastAPI 应用。main.py: HTTP API 和 MCP JSON-RPC 入口。log_store.py: 日志写入、查询、统计和报告生成。mcp_tools.py: MCP 工具定义和工具调用分发。db.py: MySQL 访问层。schemas.py: API DTO。
demo-service/: 外部服务接入测试用例。infra/mysql/diagnosis_init.sql: 独立诊断库初始化脚本。scripts/: 本地链路冒烟测试和诊断静态数据导入脚本。docker-compose.yml: diagnosis-service、demo-service 一键运行,MySQL 连接外部 infra-stack。
Related MCP server: Debug MCP Server
APIs
Endpoint | Description |
| 业务服务推送异常日志 |
| 查询异常日志 |
| 查询日志聚合统计 |
| 查询已接入服务 |
| 生成诊断报告 |
| 查询诊断报告 |
| MCP JSON-RPC 工具入口 |
| 健康检查 |
MCP Tools
search_logs: 按服务、级别、traceId 和时间窗口查日志。search_code: 查询静态导入的代码符号。search_tickets: 查询相似历史故障工单。generate_report: 聚合日志、代码和工单证据生成诊断报告。get_report: 按报告 ID 查询报告。
Quick Start
cp .env.example .env
# 先启动外部 ai-agent-infra-stack,再启动诊断服务
docker compose up -d diagnosis-service demo-service
curl http://localhost:8200/health推送一条异常:
curl -X POST http://localhost:8200/api/logs \
-H 'Content-Type: application/json' \
-d '{"service":"demo-service","level":"ERROR","trace_id":"tr_001","endpoint":"/api/order/1","exception_type":"TimeoutError","message":"order query timeout"}'生成诊断报告:
curl -X POST http://localhost:8200/mcp \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"generate_report","arguments":{"service":"demo-service","trace_id":"tr_001"}}}'运行 demo-service 外部接入验证:
for i in 1 2 3 4 5; do curl -s http://localhost:8300/api/order/$i || true; done
curl 'http://localhost:8200/api/logs?service=demo-service&page_size=10'Local Development
python3 -m venv .venv
. .venv/bin/activate
pip install -r requirements.txt
DIAGNOSIS_MYSQL_DSN=mysql://agent:agent123@localhost:3306/diagnosis_db \
uvicorn app.main:app --host 127.0.0.1 --port 8200 --reloaddemo-service 本地启动:
cd demo-service
pip install -r requirements.txt
DIAGNOSIS_URL=http://localhost:8200 uvicorn app.main:app --host 127.0.0.1 --port 8300 --reloadCodex MCP Usage
把 MCP HTTP 入口配置到本地 Codex/其他 MCP 客户端时,服务地址使用:
http://localhost:8200/mcp工具发现请求:
curl -X POST http://localhost:8200/mcp \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'Environment
DIAGNOSIS_MYSQL_DSN: 诊断库连接串,默认mysql://agent:agent123@localhost:3306/diagnosis_db。DIAGNOSIS_URL: demo-service 推送诊断服务地址,默认http://localhost:8200。SERVICE_NAME: demo-service 上报服务名,默认demo-service。
Verification
python3 -m compileall app demo-service/app
bash scripts/smoke_test.sh导入诊断静态数据:
python3 scripts/ingest_code.py --repo-dir demo-service --service demo-service
python3 scripts/ingest_tickets.py --ticket-dir datasets/tickets --service demo-service
python3 scripts/ingest_logs.py --log-dir datasets/logs --service demo-serviceThis server cannot be installed
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