MCP

MCP in ConvEngine is the runtime control loop for tool selection, tool execution, and final answer resolution.

Current focus

This section documents the current semantic path: db.semantic.interpret -> db.semantic.query -> postgres.query.

Quick navigation

• Basics
• Advanced Guide
• Semantic Query
• Semantic Query Deep Dive
• Semantic Query AI Tool
• HTTP Tool
• Deep Dive
• Example 1
• Example 2
• Example 3
• Example 4 - Semantic Query (Zapper)

Core MCP tables

MCP table map

Table	Purpose	Used by
ce_mcp_tool	Tool registry and scoped activation	McpToolStep / ToolOrchestrationStep
ce_mcp_planner	Planner prompt selection by intent/state	McpPlanner
ce_mcp_db_tool	SQL-template fallback (non-handler path)	McpDbExecutor
ce_semantic_mapping	Business field -> table/column mapping	db.semantic.query
ce_semantic_query_class	Query class contracts and defaults	db.semantic.interpret / db.semantic.query
ce_semantic_query_failures	Failure memory for retries and correction	db.semantic.query / postgres.query