9 Commits (ad166c6b8a3a30d61ddd0dbbfc0b7b45f32f4df6)

Author	SHA1	Message	Date
Rene Cannao	3daaa5c592	feat: Implement RAG (Retrieval-Augmented Generation) subsystem ... Adds a complete RAG subsystem to ProxySQL with: - RAG_Tool_Handler implementing all MCP tools for retrieval operations - Database schema with FTS and vector support - FTS, vector, and hybrid search capabilities - Fetch and refetch tools for document/chunk retrieval - Admin tools for monitoring - Configuration variables for RAG parameters - Comprehensive documentation and test scripts Implements v0 deliverables from RAG blueprint: - SQLite schema initialization - Source registry management - MCP tools: search_fts, search_vector, search_hybrid, get_chunks, get_docs, fetch_from_source, admin.stats - Unit/integration tests and examples	2 months ago
Rene Cannao	35b0b224ff	refactor: Remove mcp-catalog_path variable and hardcode catalog path ... Remove the mcp-catalog_path configuration variable and hardcode the catalog database path to datadir/mcp_catalog.db for stability. Rationale: The catalog database is session state, not user configuration. Runtime swapping of the catalog could cause tables to be missed and the catalog to fail even if it was succeeding a second earlier. Changes: - Removed catalog_path from mcp_thread_variables_names array - Removed mcp_catalog_path from MCP_Thread variables struct - Removed getter/setter logic for catalog_path - Hardcoded catalog path to GloVars.datadir/mcp_catalog.db in: - ProxySQL_MCP_Server.cpp (Query_Tool_Handler initialization) - Admin_FlushVariables.cpp (MySQL_Tool_Handler reinitialization) - Updated VARIABLES.md to document the hardcoded path - Updated configure_mcp.sh to remove catalog_path configuration - Updated MCP README to remove catalog_path references	2 months ago
Rene Cannao	1b7335acfe	Fix two-phase discovery documentation and scripts ... - Add mcp_config.example.json for Claude Code MCP configuration - Fix MCP bridge path in example config (../../proxysql_mcp_stdio_bridge.py) - Update Two_Phase_Discovery_Implementation.md with correct Phase 1/Phase 2 usage - Fix Two_Phase_Discovery_Implementation.md DELETE FROM fts_objects to scope to run_id - Update README.md with two-phase discovery section and multi-agent legacy note - Create static_harvest.sh bash wrapper for Phase 1 - Create two_phase_discovery.py orchestration script with prompts - Add --run-id parameter to skip auto-fetch - Fix RUN_ID placeholder mismatch (<USE_THE_PROVIDED_RUN_ID>) - Fix catalog path default to mcp_catalog.db - Add test_catalog.sh to verify catalog tools work - Fix Discovery_Schema.cpp FTS5 syntax (missing space) - Remove invalid CREATE INDEX on FTS virtual tables - Add MCP tool call logging to track tool usage - Fix Static_Harvester::get_harvest_stats() to accept run_id parameter - Fix DELETE FROM fts_objects to only delete for specific run_id - Update system prompts to say DO NOT call discovery.run_static - Update user prompts to say Phase 1 is already complete - Add --mcp-only flag to restrict Claude Code to MCP tools only - Make FTS table failures non-fatal (check if table exists first) - Add comprehensive documentation for both discovery approaches	2 months ago
Rene Cannao	6f23d5bcd0	feat: Implement two-phase schema discovery architecture ... Phase 1 (Static/Deterministic): - Add Discovery_Schema: SQLite catalog with deterministic and LLM tables - Add Static_Harvester: MySQL INFORMATION_SCHEMA metadata extraction - Harvest schemas, objects, columns, indexes, foreign keys, view definitions - Compute derived hints: is_time, is_id_like, has_pk, has_fks, has_time - Build quick profiles and FTS5 indexes Phase 2 (LLM Agent): - Add 19 new MCP tools for two-phase discovery - discovery.run_static: Trigger ProxySQL's static harvest - Catalog tools: init, search, get_object, list_objects, get_relationships - Agent tools: run_start, run_finish, event_append - LLM tools: summary_upsert, relationship_upsert, domain_upsert, etc. Files: - include/Discovery_Schema.h, lib/Discovery_Schema.cpp - include/Static_Harvester.h, lib/Static_Harvester.cpp - include/Query_Tool_Handler.h, lib/Query_Tool_Handler.cpp (updated) - lib/Makefile (updated) - scripts/mcp/DiscoveryAgent/ClaudeCode_Headless/prompts/ - scripts/mcp/DiscoveryAgent/ClaudeCode_Headless/two_phase_discovery.py	2 months ago
Rene Cannao	a3f0bade4e	feat: Convert NL2SQL to generic LLM bridge ... - Rename NL2SQL_Converter to LLM_Bridge for generic prompt processing - Update MySQL protocol handler from /* NL2SQL: */ to /* LLM: */ - Remove SQL-specific fields (sql_query, confidence, tables_used) - Add GENAI_OP_LLM operation type to GenAI module - Rename all genai_nl2sql_* variables to genai_llm_* - Update AI_Features_Manager to use LLM_Bridge - Deprecate ai_nl2sql_convert MCP tool with error message - LLM bridge now handles any prompt type via MySQL protocol This enables generic LLM access (summarization, code generation, translation, analysis) while preserving infrastructure for future NL2SQL implementation via Web UI + external agents.	2 months ago
Rene Cannao	3f44229e28	feat: Add MCP AI Tool Handler for NL2SQL with test script ... Phase 5: MCP Tool Implementation for NL2SQL This commit implements the AI Tool Handler for the MCP (Model Context Protocol) server, exposing NL2SQL functionality as an MCP tool. **New Files:** - include/AI_Tool_Handler.h: Header for AI_Tool_Handler class - Provides ai_nl2sql_convert tool via MCP protocol - Wraps NL2SQL_Converter and Anomaly_Detector - Inherits from MCP_Tool_Handler base class - lib/AI_Tool_Handler.cpp: Implementation - Implements ai_nl2sql_convert tool execution - Accepts parameters: natural_language (required), schema, context_tables, max_latency_ms, allow_cache - Returns JSON response with sql_query, confidence, explanation, cached, cache_id - scripts/mcp/test_nl2sql_tools.sh: Test script for NL2SQL MCP tool - Tests ai_nl2sql_convert via JSON-RPC over HTTPS - 10 test cases covering SELECT, WHERE, JOIN, aggregation, etc. - Includes error handling test for empty queries - Supports --verbose, --quiet options **Modified Files:** - include/MCP_Thread.h: Add AI_Tool_Handler forward declaration and pointer - lib/Makefile: Add AI_Tool_Handler.oo to _OBJ_CXX list - lib/ProxySQL_MCP_Server.cpp: Initialize and register AI tool handler - Creates AI_Tool_Handler with GloAI components - Registers /mcp/ai endpoint - Adds cleanup in destructor **MCP Tool Details:** - Endpoint: /mcp/ai - Tool: ai_nl2sql_convert - Parameters: - natural_language (string, required): Natural language query - schema (string, optional): Database schema name - context_tables (string, optional): Comma-separated table list - max_latency_ms (integer, optional): Max acceptable latency - allow_cache (boolean, optional): Check semantic cache (default: true) **Testing:** Run the test script with: ./scripts/mcp/test_nl2sql_tools.sh [--verbose] [--quiet] See scripts/mcp/test_nl2sql_tools.sh --help for usage. Related: Phase 1-4 (Documentation, Unit Tests, Integration Tests, E2E Tests) Related: Phase 6-8 (User Docs, Developer Docs, Test Docs)	2 months ago
Rene Cannao	c86a048d9c	Implement MCP multi-endpoint architecture with dedicated tool handlers ... This commit implements Option 1 (Multiple Tool Handlers) for the MCP module, where each of the 5 endpoints has its own dedicated tool handler with specific tools. ## Architecture Changes - Created MCP_Tool_Handler base class interface for all tool handlers - Each endpoint now has its own dedicated tool handler: - /mcp/config → Config_Tool_Handler (configuration management) - /mcp/query → Query_Tool_Handler (database exploration) - /mcp/admin → Admin_Tool_Handler (administrative operations) - /mcp/cache → Cache_Tool_Handler (cache management) - /mcp/observe → Observe_Tool_Handler (monitoring & metrics) ## New Files Base Interface: - include/MCP_Tool_Handler.h - Base class for all tool handlers Tool Handlers: - include/Config_Tool_Handler.h, lib/Config_Tool_Handler.cpp - include/Query_Tool_Handler.h, lib/Query_Tool_Handler.cpp - include/Admin_Tool_Handler.h, lib/Admin_Tool_Handler.cpp - include/Cache_Tool_Handler.h, lib/Cache_Tool_Handler.cpp - include/Observe_Tool_Handler.h, lib/Observe_Tool_Handler.cpp Documentation: - doc/MCP/Architecture.md - Comprehensive architecture documentation ## Modified Files - include/MCP_Thread.h, lib/MCP_Thread.cpp - Added 5 tool handler pointers - include/MCP_Endpoint.h, lib/MCP_Endpoint.cpp - Use tool_handler base class - lib/ProxySQL_MCP_Server.cpp - Create and pass handlers to endpoints - lib/Makefile - Added new source files ## Implementation Status - Config_Tool_Handler: Functional (get_config, set_config, list_variables, get_status) - Query_Tool_Handler: Functional (wraps MySQL_Tool_Handler, all 18 tools) - Admin_Tool_Handler: Stub implementations (TODO: implement) - Cache_Tool_Handler: Stub implementations (TODO: implement) - Observe_Tool_Handler: Stub implementations (TODO: implement) See GitHub Issue #8 for detailed TODO list. Co-authored-by: Claude <claude@anthropic.com>	2 months ago
Rene Cannao	40cff23c3b	Initialize MySQL Tool Handler and fix default MySQL port ... - Initialize MySQL_Tool_Handler in ProxySQL_MCP_Server constructor with MySQL configuration from MCP variables - Use GloVars.get_SSL_pem_mem() to get SSL certificates correctly - Add MySQL_Tool_Handler cleanup in destructor - Change configure_mcp.sh default MySQL port from 3307 to 3306 - Change configure_mcp.sh default password from test123 to empty - Update help text and examples to match new defaults	2 months ago
Rene Cannao	87fff9e046	Add MCP (Model Context Protocol) module skeleton ... Add new MCP module supporting multiple MCP server endpoints over HTTPS with JSON-RPC 2.0 protocol skeleton. Each endpoint (/mcp/config, /mcp/observe, /mcp/query, /mcp/admin, /mcp/cache) is a distinct MCP server with its own authentication configuration. Features: - HTTPS server using existing ProxySQL TLS certificates - JSON-RPC 2.0 skeleton implementation (actual protocol TBD) - 5 MCP endpoints with per-endpoint auth configuration - LOAD/SAVE MCP VARIABLES admin commands - Configuration file support (mcp_variables section) Implementation follows GenAI module pattern: - MCP_Threads_Handler: Main module handler with variable management - ProxySQL_MCP_Server: HTTPS server wrapper using libhttpserver - MCP_JSONRPC_Resource: Base endpoint class with JSON-RPC skeleton	2 months ago