Universal Memory Tool turns huge chats, project folders, notes, logs, and documents into a private searchable memory workspace for AI assistants. The app stores compressed local evidence blocks plus small searchable headers. Assistants search first, then hydrate only the proof they need instead of replaying an entire chat history. Best tested path: Codex Desktop with GPT-5.5 or other Codex models through local STDIO MCP. This keeps the memory database on your machine. Also useful for: AnythingLLM and other local assistants that can call local tools or MCP-style commands.