This is an SDK, not a production server. The 3 example tools have minimal descriptions and incomplete schemas. 'greet' has a trivial 7-char description ('say hi'). 'weather' lacks any description entirely. 'cityTime' has a reasonable description but the weather tool is undescribed. Input schemas are present but sparse, weather omits a description for the location object. No output schemas are documented. Error handling is absent from examples. The SDK itself (tool.go) shows good infrastructure (ToolHandlerFor, schema validation, applySchema), but the example tools do not demonstrate production-grade quality. Naming is acceptable (verb_noun pattern), but parameter descriptions are minimal or missing.

• Add a 50 - 150 character description to weather tool explaining what it does, when to use it, and what it returns (e.g., 'Get a weather forecast for a location. Returns temperature, conditions, and precipitation for the next N days.').
• Expand greet description from 'say hi' to a full sentence: 'Greet a person by name. Returns a friendly greeting message.'
• Add descriptions to all input parameters. For weather.location, clarify: 'Location object with name (string) and optional latitude/longitude (numbers). If coordinates provided, they take precedence over name.'
• Document output schemas for each tool. E.g., greet returns {type: 'object', properties: {message: {type: 'string'}}}. weather returns {type: 'object', properties: {forecast: {type: 'array', items: {type: 'object', properties: {date, temp, condition}}}}}.
• Add error handling examples. E.g., weather tool should document: 'Returns error if location not found. Suggest calling search_locations() first if coordinates unavailable.'

Inferred effective spec: 2025-06-18+.

• Relies on Roots (deprecated) - pass files/dirs via tool parameters, resource URIs, or configuration