Show HN: Git worktree automation.

Manifold. Run Claude Code, Codex, and Gemini CLI in parallel on the same project.

I wanted to run multiple AI coding agents on the same project at the same time so that I could implement multiple specs at the same time. Each agent gets its own git worktree, its own branch, and a real terminal. No wrapper. You see exactly what you'd see in your CLI, but for three agents at once.

Pick the right CLI for each task. Steer agents mid-flight. Create PRs when they're done.

Built 50% of Manifold with Manifold. macOS, open source, v0.1. Would love feedback.