Server has 19 tools with basic descriptions and partial schemas. Most tools lack input parameter schemas entirely (tools 3, 5-19 have no visible schema definitions in the provided code). Descriptions are present but generic (10-150 chars, below the 194-char baseline). Tool naming follows verb_noun convention (search_, list_, get_) which is good. However, critical gaps: no output schemas documented, no error handling guidance, no parameter validation rules, and many tools missing input schema visibility. The code snippet is truncated, so full schema assessment is limited. Based on visible definitions, this is a fair-to-poor implementation.

• Add complete input schemas to all 16 tools lacking them. Each parameter must have type (string|integer|boolean|array|object), description (50-100 chars), and constraints (enum, pattern, min/max).
• Document output schemas for all tools. Specify return type (object|array), field names, types, and descriptions. Example: 'Returns array of {message_id: string, author: string, content: string, timestamp: ISO8601, channel_id: string}'.
• Expand descriptions for tools 3-19 to 100-200 characters. Include WHAT the tool does, WHEN to use it (vs similar tools), and what it returns. Example: 'Find messages mentioning a specific person by name or alias. Use this to track conversations with or about a user. Returns up to 50 messages with author, content, timestamp, and channel context.'
• Add error handling guidance to all tools. Document: (1) what errors can occur (not found, invalid input, permission denied), (2) what the LLM should do (retry, ask user, try alternative tool), (3) example recovery: 'If channel not found, call list_server_channels() to see available channels.'
• Add pagination to list_* and get_* tools. Include limit (default 20, max 100) and offset/cursor parameters. Return total_count so LLMs know if more results exist. Cap results at 50 items per call to prevent context window exhaustion.