Kanban MCP demonstrates competent baseline tool definitions with consistent naming patterns and generally clear descriptions. All 14 tools are explicitly registered with names, descriptions, and Zod schemas in src/mcp-server/index.ts. However, several dimension gaps limit the score: (1) Parameter descriptions lack depth, they state what the field is but rarely when to use it or how it chains to other tools. (2) Output schemas are inferred from database records but not formally documented in responses. (3) Error handling is minimal, tools return generic 'not found' or success messages without recovery guidance. (4) Tool descriptions lack dependency hints or context on common usage patterns. (5) No batch operations despite agents calling create_task and add_comment in loops. The server follows basic tool patterns but falls short of LLM-optimized design, descriptions average ~50 chars, well below the 194-char baseline for A-grade tools.

• Document output schemas for all tools. Add a 'Returns' section in descriptions listing fields, types, and which fields enable chaining (e.g., 'Returns: {id, name, createdAt, taskCount}, use id for get_project or list_tasks').
• Expand parameter descriptions to include constraints: 'title (1-200 chars, required)', 'priority (critical|high|medium|low, default: medium)', 'dueDate (ISO 8601, must be future date)'.
• Add recovery guidance to error paths. When a project/task is not found, suggest: 'Did you mean: [list of similar names]?' or 'Call list_projects() to see available projects.'
• Implement pagination for list_tasks and search_tasks. Add limit (default 20, max 100), offset, and return total_count so agents can iterate safely without context overflow.
• Add confirmation-request pattern for delete_project and delete_task. E.g., include a 'confirm_delete' boolean param (default false) that returns 'Ready to delete. Call again with confirm_delete=true to execute.' This prevents accidents.
• Clarify move_task vs update_task in descriptions. Rename move_task to 'update_task_status' or clearly document: 'Use move_task for reordering within a status column; use update_task for other field changes.'
• Add batch operations: create_tasks (array of task objects), add_comments (taskId, comments array). Reduce N sequential calls to one batch call.
• Lengthen tool descriptions to 100-200 chars with WHEN and WHY context. E.g., 'list_projects: Retrieve all projects with task counts. Call this first to discover available projects before creating tasks. Returns: array of {id, name, taskCount}.'