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>
72 lines
1.7 KiB
Markdown
72 lines
1.7 KiB
Markdown
# Known Issues - MCP Client
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## 1. Author/Work Filters Not Supported (Weaviate Limitation)
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**Status:** Known limitation
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**Affects:** `search_chunks` and `search_summaries` tools
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**Error:** Results in server error when using `author_filter` or `work_filter` parameters
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**Root Cause:**
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Weaviate v4 does not support filtering on nested object properties. The `work` field in the Chunk schema is defined as:
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```python
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wvc.Property(
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name="work",
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data_type=wvc.DataType.OBJECT,
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nested_properties=[
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wvc.Property(name="title", data_type=wvc.DataType.TEXT),
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wvc.Property(name="author", data_type=wvc.DataType.TEXT),
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],
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)
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```
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Attempts to filter on `work.author` or `work.title` result in:
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```
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data type "object" not supported in query
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```
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**Workaround:**
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Use the `filter_by_author` tool instead:
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```python
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# Instead of:
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search_chunks(
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query="nominalism",
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author_filter="Charles Sanders Peirce" # ❌ Doesn't work
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)
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# Use:
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filter_by_author(
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author="Charles Sanders Peirce" # ✓ Works
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)
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```
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Or search without filters and filter client-side:
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```python
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results = await client.call_tool("search_chunks", {
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"query": "nominalism",
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"limit": 50 # Fetch more
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})
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# Filter in Python
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filtered = [
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r for r in results["results"]
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if r["work_author"] == "Charles Sanders Peirce"
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]
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```
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**Future Fix:**
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Option 1: Add flat properties `workAuthor` and `workTitle` to Chunk schema (requires migration)
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Option 2: Implement post-filtering in Python on the server side
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Option 3: Wait for Weaviate to support nested object filtering
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**Tests Affected:**
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- `test_mcp_client.py::test_search_chunks` - Works without filters
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- Search with `author_filter` - Currently fails
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**Last Updated:** 2025-12-25
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