Compare
Forkbench vs Sculptor
Sculptor (by Imbue) runs each AI coding agent in its own Docker container for strong execution isolation, aimed at safely running agent-written code.
Sculptor and Forkbench both run multiple coding agents in parallel, but they draw the isolation line in different places. Sculptor puts each agent in its own Docker container — stronger execution isolation, which is the right call when you need to run genuinely untrusted code. Forkbench is a lighter, native-macOS control room that isolates files and branches with one-click git worktrees and adds a coordination + secrets layer, without requiring Docker.
| Forkbench | Sculptor | |
|---|---|---|
| Isolation | Git worktrees (files / branches) | Docker container per agent (execution) |
| Requires Docker | No | Yes |
| Untrusted-code safety | Not for untrusted execution | Strong (containers) |
| Agent support | Agent-agnostic (any CLI) | Claude-centric |
| Secrets handling | Zero-read Vault | No dedicated broker |
| Shared task board + remote | Yes (Pro) | No |
| Platform | Native macOS | Desktop (Mac / Linux), Docker-based |
Where Sculptor is strong
- Container-per-agent: genuinely isolates code execution, not just files — the safer choice for untrusted code.
- Well-funded (Imbue) and actively developed.
- A good fit when you want agents fully sandboxed from your host.
Where Forkbench differs
- No Docker required: one-click git worktrees are lighter than spinning up containers for everyday, trusted agent work.
- Agent-agnostic and native macOS: run Claude Code, Codex, Gemini, Aider side by side in a real terminal.
- Zero-read Vault, a shared task board, Notebooks, and multi-Mac + phone/web remote — the coordination and secrets layer Sculptor doesn't center on.
- We're honest about the limit: for untrusted code, containers isolate execution better than worktrees — if that's your need, Sculptor is the right tool.
The bottom line
If you need to run untrusted or risky agent-written code and want each agent fully sandboxed, Sculptor's containers are the safer isolation. If you're running agents you trust and want a lighter native-Mac control room — one-click worktrees, a shared board, and a vault that keeps your keys away from the agents — Forkbench is the better fit.
Comparison based on publicly available information as of mid-2026. Spot something out of date? Tell us.