The server has 5 tools with clear names and moderately detailed descriptions in Chinese. Tool descriptions are action-oriented and explain when to call each tool, this is good practice. However, there are significant gaps: parameter descriptions are minimal (mostly just type/optionality), input schemas lack detailed constraints, no documented output schemas are visible in the source, and error handling guidance is absent. The tools themselves are well-named (query_knowledge_hub, list_collections, ingest_document_*) following verb_noun convention. Parameter schemas are present in the function signatures but descriptions within those schemas are sparse. No enum constraints, validation rules, or recovery guidance appear in the code. Output structure is not formally documented. This places the server in the 'fair' range: core definitions exist but fall short of production quality.

• Add documented output schemas (in code comments or docstrings) for each tool. Example for query_knowledge_hub: 'Returns a list of objects: [{snippet: string, source_file: string, confidence: float, document_id: string}]'.
• Add constraints to parameter descriptions. For top_k: 'Integer between 1 and 100 (default 10). Higher values increase latency; typical range is 5 - 20.'
• Document what happens when operations fail. For ingest_document_*: 'If file does not exist, tool returns an error with the expected path. If collection_name already exists, documents are added to it. If parsing fails (corrupted PDF), error message suggests retry or trying a different ingestion method.'
• Translate descriptions to English or provide both English and Chinese versions. This improves interoperability with multilingual agent systems.
• Add enum constraints where applicable. If collection_name must follow a pattern (alphanumeric + underscore), state: 'Collection name must be 1 - 50 alphanumeric characters and underscores, no spaces.'
• Define per-tool success/failure structure in docstrings. Example: 'ingest_document_normal returns {success: bool, message: string, collection_name: string, documents_added: int} or error with actionable next steps.'
• Add pagination guidance to list_collections if the number of collections can grow large: 'Returns up to 100 collection names. For systems with more collections, consider adding offset/limit parameters.'
• Specify idempotency behavior. For ingest_document_*: 'Calling twice with the same file adds documents only once (idempotent). collection_name defaults to the basename of file_path.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry