AI tools show when you sent a message. Chron logs when the AI responded too — and keeps a permanent, queryable record of every exchange across every tool you use. Works with Claude Desktop, Claude Code, Cursor, Windsurf, and any MCP-compatible AI tool. Every exchange is stored with precise local timestamps (including timezone offset) to a SQLite file on your machine. Query it directly, export it, or use it to answer: what did the AI say, and exactly when?