Single-tool server with solid schema definition and proper naming. Tool name 'get_image' follows verb_noun pattern and is unambiguous. Input schema is complete with proper JSON Schema typing (integer with min/max bounds, nested object with optional properties). Output schema is documented via Zod (url field with z.url() validation). Tool annotations are present and correct (readOnlyHint, idempotentHint). However, description is brief (16 characters) and lacks context about use cases, constraints, and return value details. Parameter descriptions exist but could be more explicit about constraints. No error handling guidance documented, the code returns a generic 'Image not found' text response without actionable recovery steps. Output field naming could be clearer, 'structuredContent' is non-standard; 'image_url' or 'image' would align better with field-naming conventions.

• Expand tool description to 80-150 characters explaining: 'Fetch an image from the Picsum Photos database by ID (0-1084). Returns the image URL and metadata. Use this to retrieve placeholder/stock images for content generation. Images can be scaled by providing width and height in the scale parameter.'
• Add explicit error handling with recovery guidance: instead of returning 'Image not found' as text, return structured error response like '{"error": "Image not found", "suggestion": "ID must be between 0 and 1084. Try a different ID or check Picsum Photos documentation.", "retryable": false}'
• Document the output schema as a comment or JSDoc above the tool definition, specifying that the response will always include {url: string} in structuredContent, and _meta will contain the full image info object with id, author, width, height fields.
• Clarify scale parameter behavior: 'Optional object containing width and height. If omitted, returns the original image dimensions. Both width and height must be positive integers in pixels; if only one is provided, the image is scaled proportionally.'
• Standardize output field naming, consider returning {image_url: string, metadata: {...}} instead of the nested structuredContent wrapper to align with common response patterns and reduce LLM interpretation overhead.