re_gent - Version Control for AI Coding Agents

A tool that lets you track and audit the work of AI coding agents like Git. For each step the agent performs, you can check in detail which prompt wrote a specific line of code.

Key Features and Characteristics:

• Core commands: Provides rgt log to show work history, rgt blame to find the prompt origin of a specific line, and rgt show to print the full context.
• Step snapshots: Creates a snapshot containing the changes and the reasoning behind them each time a tool is used, and these form a DAG (Directed Acyclic Graph) structure.
• Tech stack: Uses BLAKE3-based content-addressed storage and a SQLite index to achieve sub-10ms lookup performance and concurrency safety.
• Compatibility: Fully supports Claude Code, OpenAI Codex CLI, and OpenCode, and hooks can be configured with no extra setup via rgt init.
• Extensibility: A VSCode extension provides inline blame annotations, hover tooltips, and a session timeline view.

This tool doesn't replace Git; instead, it complements Git by precisely recording the agent's activity.