Four tools with clear, action-verb names and reasonable descriptions (avg 140 chars). All tools have input schemas with type definitions. However, parameter descriptions are sparse or missing entirely for most inputs. Three tools accept no parameters (empty schema), limiting composability. Error handling returns structured objects but lacks recovery guidance. Output schemas are implicit rather than documented. Naming is consistent (get_*) and follows verb_noun convention. No security issues detected (read-only operations, no secrets exposed).

• Add explicit JSON Schema constraints to latitude parameter: 'minimum': -90, 'maximum': 90. Document in description: 'Geographic latitude in degrees (range: -90 to 90, e.g., 48.2 for Vienna).'
• Document output schemas for all four tools. E.g., get_current_kp returns {kp: number, level: enum[low|moderate|high|severe], time_utc: ISO8601, max_24h: number, source: string}.
• Enhance error messages with recovery guidance. E.g., 'NOAA request failed: timeout. Retry in 30s or check https://www.swpc.noaa.gov/products/noaa-planetary-k-index for status.'
• Add WHEN-to-use context to tool descriptions. E.g., get_current_kp: 'Use for real-time Kp status. For forecasts, use get_kp_forecast_3day. For aurora visibility at a specific latitude, use get_aurora_visibility.'
• Consider adding optional parameters to zero-parameter tools for filtering or customization. E.g., get_kp_forecast_3day could accept timezone parameter (default Europe/Berlin) to return dates in user's local timezone.