Server has 5 tools with basic schemas and descriptions. All tools are READ_ONLY and well-intentioned, but descriptions are inconsistent in depth and some parameter documentation is sparse. ping tool has empty input schema ({}). buscar_negocios has good parameter descriptions with constraints (enums, patterns). detalle_negocio and negocios_abiertos have minimal descriptions. diagnostico_digital lacks detail on what 'puntaje 0-100' means or how it's calculated. No output schemas documented. Error handling is absent, no guidance on what happens if a business ID doesn't exist or if the database is unavailable. Tool names follow verb_noun pattern (buscar_, detalle_, negocios_, diagnostico_) which is good, but descriptions vary from 80 chars (ping) to 180+ chars (buscar_negocios). No tool annotations (readOnlyHint, etc.) despite all being read-only.

• Remove ping tool or replace with a meaningful health-check that returns server status (e.g., database connection, business count). If kept, add a non-empty input schema.
• Document output schemas for all tools. Example: detalle_negocio should return {id, nombre, horario, contacto, redes, sitio_web, colonia, categoria}. Include field types and descriptions.
• Add error handling to detalle_negocio and diagnostico_digital: 'Business not found. Try buscar_negocios() to find a valid ID.' Include available business IDs or search hints.
• Expand diagnostico_digital description: explain the 0-100 scale (e.g., 0-39=basic, 40-74=intermediate, 75-100=advanced), define what 'servicio SDDA' means, and list possible values.
• Add tool annotations: set readOnlyHint=true and idempotentHint=true on all 5 tools to signal to agents that they are safe to retry and do not modify state.