Server has 5 tools with complete input schemas and descriptions, but quality is uneven. Tool naming lacks action verbs (e.g., 'notion-retrieve-block' appears twice with different purposes, creating ambiguity). Descriptions are present but generic, most lack context on WHEN to use the tool or what it returns. Parameter descriptions are adequate but lack format constraints (e.g., blockId format stated in description but not as regex/pattern). No output schemas documented. Error handling absent, no guidance on retryability or recovery. Security: credentials injected server-side (good), but no audit logging visible. Composition: tools are single-purpose but lack chaining hints (e.g., search returns results but doesn't indicate if IDs are compatible with retrieve calls).

• Rename 'notion-retrieve-block' and 'notion-retrieve-block-children' to 'get-block' and 'list-block-children' (or 'get-block-children'). Use consistent verb_noun naming across all tools.
• Document output schemas for each tool. E.g., 'Returns {id, type, created_time, last_edited_time, has_children, [block_type]: {...}}' so LLMs know what fields to extract for chaining.
• Add error handling: catch API errors and return structured responses like '{error: "Block not found", code: "NOT_FOUND", suggestion: "Verify blockId is a valid UUID"}' with retry guidance.
• Add regex pattern constraints to ID parameters: blockId should validate against '^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$' in the schema, not just the description.
• For search and list tools, document pagination behavior: 'Returns up to pageSize results. Use startCursor from response to fetch next page. Total count not available from API.'