CASDA MCP demonstrates solid definition quality with well-structured schemas, comprehensive parameter descriptions, and proper tool annotations. Both tools have complete input schemas with typed fields and detailed descriptions. casda_search_products is particularly strong with 15 well-documented parameters covering spatial, temporal, and spectral filtering. Tool descriptions clearly state read-only semantics and safety constraints. However, output schemas are not explicitly documented in the visible code, and the second tool (casda_get_product) has a minimal description. Error handling is present but recovery guidance is limited. Tool composition is clean, each tool has a single responsibility. Naming follows verb_noun convention appropriately.

• Expand casda_get_product description to 50-150 chars explaining: 'Retrieve detailed metadata and download links for a specific CASDA product by ID. Use after search_products() to get full product information before staging or downloading.'
• Document response schemas inline or in a separate schema reference. Show that SearchProductsResponse includes fields like product_id, filename, file_size, observation_start, release_date, and total_count. Show GetProductResponse structure.
• Add explicit parameter dependency documentation to casda_search_products: 'Provide either source_name OR (ra_deg, dec_deg, radius_deg) for spatial search. Frequency and observation time filters are optional and combine with spatial filters via AND logic.'
• Enhance error messages with recovery hints. E.g., if radius_deg exceeds server limit, return: 'Radius 15 degrees exceeds maximum 10 degrees. Reduce radius or use source_name search instead.'
• Document pagination behavior: 'Results are limited to page_size (max 100). Use cursor from response to fetch next page, or increment page number. Total result count is returned to help plan pagination.'
• Add examples to tool descriptions showing typical workflows: 'Example: Search for ASKAP observations of M31 within 1 degree, then call casda_get_product with returned product_id to fetch download links.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry