VS Code extension with a RAG-based synthetic memory system using 59+ MCP tools for cross-tool communication. Stores decisions locally in a .continuity/ folder as JSON. RAG-based retrieval with semantic search across 12 semantic categories. In-memory decision cache with file watching and auto-invalidation. Wiki Lint health checks detect contradictions and staleness. 4 report types: summary, comparison, timeline, deep-dive. 7 CLI commands for full terminal-based access. Works on macOS, Linux, and Windows.