Critical gaps across all dimensions. 24 tools with minimal descriptions (most 10-50 chars, well below 194-char baseline). Input schemas present but severely underspecified: most use generic 'action'+'data' pattern with no enum constraints, no field-level descriptions, no output schemas documented. No error handling guidance. No tool annotations. Naming uses verb_noun pattern (list/mutate) but 'mutate' is vague, does not convey specific action. No pagination, no result limits, no chaining IDs visible. Security concerns: 'data' parameter accepts arbitrary objects with no validation hints. This server prioritizes breadth (24 tools) over depth; each tool is skeletal.

• Replace 'mutate' with specific action verbs: create_notebook, update_notebook, delete_notebook, get_notebook. Each action becomes a separate tool or a tool with an enum-constrained 'action' parameter listing valid values (create|update|delete|get).
• Document output schemas for all list/get tools. E.g., notebook.list returns [{id: string, name: string, archived: boolean, created_at: ISO8601, ...}]. Include field descriptions and types.
• Expand descriptions to 100-200 chars. Add WHEN/WHY context: 'List all notebooks in the workspace. Call this first to discover available notebooks before creating notes or running chats. Returns notebook ID, name, and archived status.'
• Add field-level descriptions to 'data' parameter. Replace generic 'Action-specific data payload' with: 'For action=create: {name: string, description?: string}. For action=update: {id: string, name?: string, archived?: boolean}. For action=delete: {id: string}.'
• Add error handling guidance to each tool description. E.g., 'Returns 404 if notebook not found, call notebook.list() to verify the ID. Returns 403 if user lacks write permission, contact workspace admin.'