Fletch

Fletch is a desktop workspace for supervising AI coding agents such as Claude Code, Codex, Cursor and OpenCode. Each agent works in its own clone of your repository inside a macOS sandbox, or optionally a Docker container, so it cannot touch your checkout; an index of the codebase's symbols and call graph is served to every agent, and live diffs and approval gates sit between their work and a merge.

Repeatable jobs can be defined as workflows of plan, build, review and test steps with custom agent roles, where a step finishes only when a checkable condition holds. Fletch drives the command-line tools and subscriptions you already have rather than its own service. The project's releases include a universal, signed DMG, and the README lists macOS 13 or later.