David Blanc Brioir
d2f7165120
- Add complete Library RAG application (Flask + MCP server) - PDF processing pipeline with OCR and LLM extraction - Weaviate vector database integration (BGE-M3 embeddings) - Flask web interface with search and document management - MCP server for Claude Desktop integration - Comprehensive test suite (134 tests) - Clean up root directory - Remove obsolete documentation files - Remove backup and temporary files - Update autonomous agent configuration - Update prompts - Enhance initializer bis prompt with better instructions 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
1.7 KiB
1.7 KiB
Known Issues - MCP Client
1. Author/Work Filters Not Supported (Weaviate Limitation)
Status: Known limitation
Affects: search_chunks and search_summaries tools
Error: Results in server error when using author_filter or work_filter parameters
Root Cause:
Weaviate v4 does not support filtering on nested object properties. The work field in the Chunk schema is defined as:
wvc.Property(
name="work",
data_type=wvc.DataType.OBJECT,
nested_properties=[
wvc.Property(name="title", data_type=wvc.DataType.TEXT),
wvc.Property(name="author", data_type=wvc.DataType.TEXT),
],
)
Attempts to filter on work.author or work.title result in:
data type "object" not supported in query
Workaround:
Use the filter_by_author tool instead:
# Instead of:
search_chunks(
query="nominalism",
author_filter="Charles Sanders Peirce" # ❌ Doesn't work
)
# Use:
filter_by_author(
author="Charles Sanders Peirce" # ✓ Works
)
Or search without filters and filter client-side:
results = await client.call_tool("search_chunks", {
"query": "nominalism",
"limit": 50 # Fetch more
})
# Filter in Python
filtered = [
r for r in results["results"]
if r["work_author"] == "Charles Sanders Peirce"
]
Future Fix:
Option 1: Add flat properties workAuthor and workTitle to Chunk schema (requires migration)
Option 2: Implement post-filtering in Python on the server side
Option 3: Wait for Weaviate to support nested object filtering
Tests Affected:
test_mcp_client.py::test_search_chunks- Works without filters- Search with
author_filter- Currently fails
Last Updated: 2025-12-25