GitHub - regent-vcs/re_gent: Version-Control for AI coding agents.

Track what your agent did, which prompt wrote each line, and inspect any step.

# Install via Homebrew (macOS/Linux)
brew tap regent-vcs/tap
brew install regent

# Or via Go
go install github.com/regent-vcs/regent/cmd/rgt@latest

# Initialize in your project
cd your-project
rgt init

# Work with Claude Code, Codex, or OpenCode normally — activity is tracked automatically

# See what happened
rgt log
rgt blame src/file.go:42
rgt show <step-hash>

Every agent turn is automatically captured. No manual commits needed.

$ rgt log

Step a1b2c3d  |  2 min ago  |  Tool: Edit
│ File: src/handler.go
│ Added error handling to request handler
│ + 5 lines, - 2 lines

Step d4e5f6g  |  5 min ago  |  Tool: Write
│ File: tests/handler_test.go
│ Created unit tests for handler
│ + 23 lines

Step f8g9h0i  |  8 min ago  |  Tool: Bash
│ Command: go mod tidy
│ Cleaned up dependencies

$ rgt blame src/handler.go:42

Line 42: func handleRequest(w http.ResponseWriter, r *http.Request) {

Step:    a1b2c3d4e5f6
Session: claude-20260502-143021
Tool:    Edit
Prompt:  "Add error handling to the request handler"

$ rgt sessions

Active Sessions:
claude_code:claude-20260502-143021  |  3 steps  |  Last: 2 min ago
codex_cli:codex-20260502-091534     |  7 steps  |  Last: 2 hours ago

$ rgt log --session claude_code:claude-20260502-143021
# Filter history by session

$ rgt show a1b2c3d

Step a1b2c3d4e5f6
Parent: d4e5f6g7h8i9
Session: claude-20260502-143021
Time: 2026-05-02 14:30:21

Tool: Edit
File: src/handler.go

Changes:
+ func handleRequest(w http.ResponseWriter, r *http.Request) {
+     if r.Method != "GET" {
+         http.Error(w, "Method not allowed", 405)
+         return
+     }
- func handleRequest(w http.ResponseWriter, r *http.Request) {

Conversation:
User: "Add error handling to reject non-GET requests"
Assistant: "I'll add method validation to the handler..."

.regent/
├── objects/     # Content-addressed blobs (BLAKE3)
├── refs/        # Session pointers (one per agent)
├── index.db     # SQLite query index
└── config.toml

Step {
  parent:      <previous-step-hash>
  tree:        <workspace-snapshot>
  causes:      [{ tool_name: "Edit", args: <input>, result: <output> }]
  session_id:  "claude_code:claude-20260502-143021"
  timestamp:   "2026-05-02T14:30:21Z"
}

brew tap regent-vcs/tap
brew install regent

go install github.com/regent-vcs/regent/cmd/rgt@latest

# Bash
rgt completion bash > /usr/local/etc/bash_completion.d/rgt

# Zsh
rgt completion zsh > "${fpath[1]}/_rgt"

# Fish
rgt completion fish > ~/.config/fish/completions/rgt.fish

git clone https://github.com/regent-vcs/regent
cd regent
go build -o rgt ./cmd/rgt
sudo mv rgt /usr/local/bin/

# From VSIX (Recommended)
# Download the latest .vsix from:
# https://github.com/regent-vcs/vscode-regent/releases
# Then in VS Code: Extensions > ... > Install from VSIX...

# From source (Development)
git clone https://github.com/regent-vcs/vscode-regent
cd vscode-regent
npm install && npm run compile
# Press F5 in VS Code to launch Extension Development Host