Git-style blame for AI agent activity. See which prompt wrote each line of code.

re_gent is a version control system for AI agents—it tracks every change an agent makes, which tool call produced it, and the conversation context behind it. This VS Code extension brings that provenance directly into your editor.

See which step (tool call) last modified each line, right in your editor:

a1b2c3d4 • Edit • 5m ago    │  function hello() {

Hover over any line to see:

• Full step hash
• Timestamp
• Tool name (Edit, Write, Bash, etc.)
• Tool arguments excerpt
• Link to full conversation context

Browse your agent's step-by-step history in the sidebar:

• See all steps in chronological order
• Click any step to see the diff
• Filter by session

One-click access to the full transcript that led to any change.

1. Install the re_gent CLI: Follow instructions at github.com/regent-vcs/regent

   # Using Homebrew (macOS/Linux)
   brew install regent-vcs/tap/regent
   
   # Or build from source
   git clone https://github.com/regent-vcs/regent
   cd regent
   go build -o rgt ./cmd/rgt

2. Initialize a re_gent repository in your project:

   cd your-project
   rgt init
   
   # Configure Claude Code hook (automatic tracking)
   # This modifies .claude/settings.json

3. Make some changes with Claude Code so there's data to display:

   • The hook will automatically capture each tool call as a Step
   • After a few edits, run rgt log to verify steps are being captured

1. Clone this repository:

   git clone https://github.com/regent-vcs/vscode-regent
   cd vscode-regent
   npm install
   npm run compile

2. Open in VS Code and press F5 to launch Extension Development Host

3. Open a workspace with a .regent/ directory

1. Download the latest .vsix from Releases
2. In VS Code: Extensions > ... > Install from VSIX...
3. Open a workspace with .regent/ directory

1. Search for "re_gent Blame" in VS Code Extensions
2. Click Install
3. Open a workspace with .regent/ directory

Open any tracked file—blame annotations appear automatically in the editor (if enabled).

Keyboard shortcuts:

• Hover over a line: See step details
• Cmd+Shift+P → "re_gent: Show Step" → Enter step hash

• re_gent: Show Step Details - View full metadata for a step
• re_gent: Show Conversation Context - See the transcript leading to a change
• re_gent: Refresh Blame - Manually refresh blame annotations

Open VS Code Settings (Cmd+,) and search for "re_gent":

• regent.enableInlineBlame - Enable/disable inline annotations (default: true)
• regent.blamePosition - Show blame in gutter or inline (default: inline)
• regent.sessionId - Session to show blame for (empty = most recent)

re_gent captures every tool call (Edit, Write, Bash) that an AI agent makes. Each becomes a Step—like a git commit, but automatic and enriched with:

• The exact tool arguments
• The conversation context
• Per-line provenance (blame)

This extension reads .regent/index.db and .regent/objects/ directly to show you that provenance inline.

• Read-only: Never modifies your .regent/ data
• Fast: Direct SQLite queries + content-addressed object reads
• Safe: No subprocess calls, no git conflicts

Current version: 0.1.0 (initial release)

• Inline blame annotations
• Hover tooltips
• Session timeline view
• Conversation context panel
• Rewind command
• Multi-session switching
• DAG visualization
• CodeLens integration

See CONTRIBUTING.md for development setup and guidelines.

MIT License - see LICENSE

• re_gent CLI: github.com/regent-vcs/regent
• Documentation: regent.sh/docs (placeholder)
• Issues: github.com/regent-vcs/vscode-regent/issues

Made by the re_gent team