Single tool 'bin-collection' with clear naming and adequate description. Schema is present with proper type definitions. However, description lacks depth on when/why to use this tool, and parameter description is minimal. Output is plain text rather than structured JSON, reducing composability. Error handling exists but messages could be more actionable. Overall decent baseline quality for a simple domain-specific tool, but falls short of production-grade patterns around output structure and comprehensive error guidance.

• Return structured JSON instead of plain text. Example: {"upcoming_collections": [{"date": "2025-02-05", "day": "Wednesday", "service": "Recycling Collection Service", "bin_color": "red", "time_alert": null}], "uprn": "000000000", "count": 3}. This enables downstream tools to extract, filter, and reference specific collections.
• Enhance tool description to ~100-150 chars: 'Retrieve upcoming bin collection dates for a Reading UK address (UPRN required). Returns the next ~12 weeks of scheduled collections with service type and bin color. Read-only; safe to retry. Requires a valid 12-digit UPRN.'
• Add validation constraints to uprn parameter description: 'Unique Property Reference Number (UPRN) for the address. Must be a 12-digit numeric string (e.g., 123456789012). Find your UPRN at https://www.reading.gov.uk/'.
• Categorize errors by recovery action. Instead of generic 'API request failed with status 429', return: 'Reading Council API rate-limited. Retry after 60 seconds.' Instead of bare 404, return: 'UPRN 000000000 not found in Reading Council database. Verify UPRN at https://www.reading.gov.uk/ or provide a different address.'
• Add idempotent tool hint annotation (if supported by mcp-go) to signal that this call is safe to retry without side effects.
• Document the UPRN parameter more thoroughly in code comments or a README: explain that UPRNs are Reading-specific, link to the lookup tool, and clarify that addresses outside Reading will fail.