NewsDigest MCP has three tools with complete Zod schemas and descriptions, but quality is uneven. Tool naming follows verb_noun convention (get-, format-, search-). Descriptions are present but generic (avg 120 chars, below 194-char baseline). Parameter descriptions are inconsistent: search-everything has detailed per-param docs; get-news-digest lacks descriptions for most params (countries, languages, category, from, to, sortBy, pageSize). format-news-markdown accepts z.any() with no schema validation. No output schema documentation. Error handling is minimal, no recovery guidance or categorization. Tools lack idempotency hints except get-news-digest. No pagination support despite potentially large result sets.

• Add descriptions to all get-news-digest parameters in the tool registration (not just Zod schema). Example: 'countries: Array of 2-letter ISO-3166 codes or full names (e.g., ["US", "Japan"]). Filters results to these regions.'
• Replace z.any() in format-news-markdown with a proper schema: z.object({articles: z.array(z.object({title: z.string(), description: z.string(), ...}))}) and document the expected input structure.
• Document output schemas for all tools. Example for search-everything: 'Returns array of article objects with fields: title (string), description (string), url (string), publishedAt (ISO 8601 date), source.name (string).'
• Add error handling with recovery hints. Wrap fetch calls in try-catch; return structured errors like {error: 'NewsAPI rate limit exceeded', retry_after_seconds: 60, suggestion: 'Reduce pageSize or add date filters'}.
• Add pagination to search-everything: accept 'page' parameter (default 1), return 'total_results' and 'has_next_page' in response, and document the 100-article limit in description.