SoapyRED/freightutils-mcp

Added

• Typed output schemas + structured results on all 24 tools. Every tool now declares an outputSchema (the FreightUtils v1 response envelope with a tool-specific result shape) and tools/call returns structuredContent: the envelope carries the answer under result, plus confidence (level + basis, match-quality score where applicable), normalized_input (interpreted inputs and defaults applied), warnings (e.g. FUZZY_BEST_MATCH, PROVENANCE_PENDING), _source (authority, checked date, provenance status) and a ready-to-use citation. Envelopes are built by the FreightUtils API itself (?envelope=1) — the same contract as the hosted /api/mcp surface and the REST opt-in, verified field-for-field.
• Compatibility: the flat JSON on the text channel (content[0].text) is byte-identical to 2.10.x for every tool, including error behaviour, so text-parsing consumers are unaffected. Non-error calls now also append the envelope's one-line citation as an additional text item. The five tools that already shipped structuredContent (emissions_calculator, validate, ics2_check, airport_lookup, nearest_airport) keep their text layout byte-identical, but their structuredContent is now the envelope (previously the flat body) — structured consumers of those five should read the payload under result.
• Note: each tools/call now makes two API requests (flat + envelope), which counts double against rate limits (anonymous: 25 requests/day per IP; error paths still cost one).

Changed

• All 24 tool definitions rewritten for agent intent-matching: per-tool behaviour prose (limits, rounding, no-match and rate-limit signaling incl. retry_after_seconds), parameter descriptions with accepted formats, defaults and inline examples, an explicit "Returns:" line backed by the new output schema, proactive limitations ("structural check, not a registry lookup"; "reference data, not legal or compliance advice"), and cross-references between related tools (adr_lookup ↔ adr_lq_eq_check ↔ adr_exemption_calculator; cbm ↔ chargeable_weight ↔ consignment ↔ shipment_summary; airport_lookup ↔ nearest_airport; hs_code_lookup ↔ uk_duty_calculator; validate ↔ the lookups it defers to).
• Package description now leads with the typed, source-cited envelope alongside the neutral-reference positioning.