源码启动问题，sayhello的name参数无法正常传递 #15
Description
你好，我在源码启动问题，sayhello的name参数无法正常传递，我在页面输入的你好，理论上返回的应该是{'msg': 'Hello, 你好!'}才对，但是参数使用无法在sayhello中接受到
而且有没有自定义mcpserver的参数配置说明信息？
下面的 是日志信息：
- Serving Flask app 'app'
- Debug mode: off
INFO:werkzeug:WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead. - Running on all addresses (0.0.0.0)
- Running on http://127.0.0.1:5050
- Running on http://192.168.139.99:5050
INFO:werkzeug:Press CTRL+C to quit
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET / HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/css/bootstrap.min.css HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/css/fonts.css HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/css/katex.min.css HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/css/highlight.js/github.min.css HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /style.css HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /ultrarag.svg HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/js/bootstrap.bundle.min.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/js/marked.min.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/js/katex.min.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/js/purify.min.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/js/auto-render.min.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /i18n/en.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/js/highlight.min.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /main.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/fonts/inter/Inter-Regular.woff2 HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/fonts/inter/Inter-Medium.woff2 HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /i18n/zh.js HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/fonts/jetbrains-mono/JetBrainsMono-Regular.woff2 HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /vendor/fonts/inter/Inter-SemiBold.woff2 HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/config/mode HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /favicon.svg HTTP/1.1" 304 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/tools HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines/rag_query HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines/sayhello HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines/rag_query/parameters HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines/sayhello/parameters HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines/sayhello/parameters HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines/chat/history?session_id=927bd46c-d5b6-4636-b783-73d8795798f9 HTTP/1.1" 404 -
[02/05/26 18:27:31] INFO [UltraRAG.Client] Executing pipeline client.py:1152
with configuration
/Volumes/work/Projects/RisenProjects
/Python/UltraRAG/examples/sayhello.y
aml
/Volumes/work/Projects/RisenProjects/Python/UltraRAG/examples/sayhello.yaml
/Volumes/work/Projects/RisenProjects/Python/UltraRAG/examples/server/sayhello_server.yaml
[02/05/26 18:27:31] INFO [UltraRAG.Client] Initializing MCP client.py:1275
Client...
WARNING: All log messages before absl::InitializeLog() is called are written to STDERR
I0000 00:00:1770287251.580718 21938594 fork_posix.cc:71] Other threads are currently calling into gRPC, skipping fork() handlers
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/pipelines HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:31] "GET /api/kb/files HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:32] "GET /api/kb/files HTTP/1.1" 200 -
[02/05/26 18:27:32] INFO Starting MCP server 'sayhello' with server.py:2506
transport 'stdio'
INFO:pipeline_manager:Session fffbace4-0851-4c25-84b2-cbbf12a88ef7 connected for pipeline sayhello
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:32] "POST /api/pipelines/sayhello/demo/start HTTP/1.1" 200 -
INFO:main:Listing background tasks for user_id: 'user_1770012479231_t6ltf8qka'
INFO:main:Found 0 tasks for user_id: 'user_1770012479231_t6ltf8qka'
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:32] "GET /api/background-tasks?limit=20&user_id=user_1770012479231_t6ltf8qka HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:34] "GET /api/pipelines/chat/history?session_id=fffbace4-0851-4c25-84b2-cbbf12a88ef7 HTTP/1.1" 200 -
INFO:main:Session fffbace4-0851-4c25-84b2-cbbf12a88ef7: conversation_history length = 1, has_previous = False
INFO:main:Session fffbace4-0851-4c25-84b2-cbbf12a88ef7: First turn (history empty), running full pipeline 'sayhello'
[02/05/26 18:27:34] INFO [UltraRAG.Client] Dynamic Override client.py:1387
added for 'retriever':
{'index_backend': 'milvus',
'index_backend_configs': {'milvus':
{'uri': 'tcp://192.168.5.112:19530',
'token': '', 'id_field_name': 'id',
'vector_field_name': 'vector',
'text_field_name': 'contents',
'id_max_length': 64,
'text_max_length': 60000,
'metric_type': 'IP', 'index_params':
{'index_type': 'AUTOINDEX',
'metric_type': 'IP'},
'search_params': {'metric_type':
'IP', 'params': {}},
'index_chunk_size': 1000}}}
/Volumes/work/Projects/RisenProjects/Python/UltraRAG/examples/sayhello.yaml
{'name': 'UltraRAG v3'}
[02/05/26 18:27:34] INFO [UltraRAG.Client] Available tools: client.py:1872
['greet']
[02/05/26 18:27:34] INFO [UltraRAG.Client] Executing step: client.py:1435
sayhello.greet
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:34] "POST /api/pipelines/sayhello/chat HTTP/1.1" 200 -
INFO:werkzeug:127.0.0.1 - - [05/Feb/2026 18:27:34] "GET /vendor/fonts/jetbrains-mono/JetBrainsMono-Medium.woff2 HTTP/1.1" 304 -
[02/05/26 18:27:34] INFO [UltraRAG.Client] Pipeline execution client.py:1879
completed.
[02/05/26 18:27:34] INFO [UltraRAG.Client] Memory output saved client.py:878
to
output/memory__sayhello_20260205_1827
34.json
[02/05/26 18:27:34] INFO [UltraRAG.Client] Executing pipeline client.py:1152
with configuration
/Volumes/work/Projects/RisenProjects
/Python/UltraRAG/examples/multiturn_
chat.yaml
WARNING:pipeline_manager:Failed to init multiturn client: [Errno 2] No such file or directory: '/Volumes/work/Projects/RisenProjects/Python/UltraRAG/examples/server/multiturn_chat_server.yaml', will fall back to full pipeline
/Volumes/work/Projects/RisenProjects/Python/UltraRAG/examples/multiturn_chat.yaml
/Volumes/work/Projects/RisenProjects/Python/UltraRAG/examples/server/multiturn_chat_server.yaml