Fletch: A macOS App Giving Claude Code Agents Sandboxed Workspaces
a1chapone · reddit · 2026-08-04
A developer with 15+ years of experience open-sourced Fletch, a macOS app designed to give engineers better control over AI coding agents like Claude Code.
Key features include:
- Sandboxing by default: Supports Seatbelt and Docker, allowing agents to move fast while confining the blast radius to a clone rather than the local checkout.
- Local code indexing: Uses Codegraph to index the repo, replacing inefficient grep searches.
- Custom workflows: Allows defining custom agents (Architect, Tester, etc.) to orchestrate a complete pipeline from planning to testing.
Built on Tauri 2 (18 MB), the app is free and AGPL-licensed. It directly drives the Claude Code CLI without proxies or middleman keys.
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