HippoBox exhibits significant gaps in definition quality across multiple dimensions. Tool descriptions are present but often too brief (averaging ~40-50 chars, below the 194-char baseline). Input schemas are visible for only 4 of 12 tools; the remaining 8 tools lack documented input parameters entirely, making their expected arguments opaque. Parameter descriptions are sparse or absent. The naming convention is sound (verb_noun pattern: create_, list_, get_, update_, delete_, search_), but schema documentation is the primary weakness. Error handling, output schemas, and composition guidance are largely absent. The server relies on implicit API contracts rather than explicit tool definitions that would guide LLM tool selection and parameter binding.

• Expand all tool descriptions to 100 - 250 characters. Include WHAT the tool does, WHEN to use it (vs. similar tools), and WHAT it returns. Example: 'Create a new knowledge item and add it to the vector database for semantic search. Use this to onboard new facts, documents, or training examples. Returns the created item's ID and metadata.'
• Document input schemas for all 12 tools. For create_knowledge and create_topic, expose all required and optional fields (title, content, tags, etc.) with types and descriptions. For update/delete tools, clarify whether ID is UUID, slug, or numeric.
• Add descriptions to all parameters. Example: 'knowledge_id: A UUID or slug uniquely identifying the knowledge item. Use the ID from list_knowledge() or create_knowledge() responses.'
• Document output schemas for all tools. Use a consistent format: '{ "id": string, "title": string, "created_at": ISO8601-string, ... }'. Include pagination metadata for list tools: '{ "items": [...], "total": integer, "limit": integer, "offset": integer }'
• Add limit and offset parameters to list_knowledge, list_topics, and search_knowledge. Document that results are capped at 50 items per call. Example: 'limit: Max 50 items per call; default 20. offset: Starting position for pagination.'
• Implement tool annotations in the MCP server's tool registration. Mark read-only tools (get_*, list_*, search_*) with readOnlyHint=true. Mark delete tools with destructiveHint=true.
• For delete_knowledge and delete_topic, implement a two-step pattern: add a dry_run parameter that returns 'Would delete X references' without actually deleting. Then require explicit confirmation to proceed.