SearchFetch defines 2 tools with reasonable parameter schemas and descriptions. Both tools have clear action verbs (webfetch, websearch) and non-empty descriptions (60-80 chars). Input schemas are present with typed parameters and descriptions for most fields. However, output schemas are not documented in the visible code, the tool definitions show inputs but no explicit return type documentation. Error handling is basic (errorReporting=true but no recovery guidance visible). Parameter descriptions lack format constraints and validation rules (e.g., max_length bounds, template format details). No tool annotations (readOnlyHint, idempotentHint) despite both being read-only operations.

• Document output schemas for both tools. Specify return type (object), field names (e.g., results[], title, url, snippet, error), field types, and example structure. Include pagination fields if applicable.
• Add explicit bounds to numeric parameters: max_length (e.g., 1 - 100000), start_index (e.g., 0 - 1000000). Document default values and what happens if bounds are exceeded.
• Add readOnlyHint: true to both tool definitions to signal that these operations are safe, idempotent, and can be retried without side effects.
• Enhance error messages with actionable recovery guidance. E.g., 'Invalid template name. Available templates: google, duckduckgo, custom. Or provide inline JSON template with {selector, transform} fields.'
• Specify valid region codes for websearch as an enum or pattern. E.g., region: {type: 'string', enum: ['us', 'uk', 'de', 'fr', ...]} or document the ISO 3166-1 alpha-2 format requirement.