{"id":"viseon.agentic.node","name":"VISEON A2A Agentic Catalogue","description":"Lifecycle-governed discovery node for brand integrity and commerce.","lifecycle_stages":{"discover":{"endpoint":"https://viseon.io/schema.txt","purpose":"Authoritative entity resolution to prevent digital obscurity."},"discuss":{"endpoint":"https://viseon.io/ai-data.txt","purpose":"Semantic grounding and policy-governed reasoning."},"transact":{"endpoint":"https://viseon.io/wp-json/viseon/v1/catalog","purpose":"Automated commerce via ACP/UCP/OSI-compliant offers."}},"mcp":{"name":"VISEON: Ask knowledge graph","endpoint":"https://viseon.io/mcp","protocol_version":"2026-07-28","transport":"streamable-http","authentication":"none","discovery":"server/discover","description":"Live JSON-RPC interface to the VISEON: Ask knowledge graph. Deterministic-first: exact entity/type/relationship lookups plus weighted fuzzy traversal over the schema.org graph. Backs the DISCOVER and DISCUSS stages as an interactive query surface.","tools":[{"name":"fuzzy_find_and_traverse","description":"Natural-language query returning ranked entities with their surrounding subgraph. Optional type filter."},{"name":"get_entity","description":"Full schema.org entity by @id/URL."},{"name":"find_by_type","description":"All entities of a schema.org type."},{"name":"query_relationships","description":"Entities connected to a subject, optionally by predicate."},{"name":"search_content","description":"Full-text search across the graph."}]},"protocols":["A2A/1.0","OSI/1.0","ACP/1.0","UCP/1.0","MCP/2026-07-28"],"governance":{"status":"Brand-Authoritative","origin":"Differentia Consulting Ltd"}}