Act on this, mostly signal

Pi-cowboy runs Codex, Claude Code and OpenCode as parallel subagents

What to do

Try pi-cowboy with herdr 0.8 or later on a copy-on-write filesystem.

Why

MIT-licensed npm package runs background agents in isolated Git worktrees.

Read the source at github.com Discussion

What the research found

pi-cowboy is an MIT-licensed npm package that orchestrates parallel background agents (Pi, Claude Code, Codex, OpenCode) in isolated copy-on-write Git worktrees inside Herdr, needing herdr 0.8 or later and a CoW filesystem.

Claims and how well the evidence supports them

pi-cowboy is MIT licensed and installable with pi install npm:pi-cowboy 99%
Requires herdr 0.8 or later and a copy-on-write filesystem such as APFS, BTRFS or ZFS 98%
ext4 does not support copy-on-write and falls back to checkout materialization (cached text partly unverified) 95%
Copy-on-write worktrees use 75 MiB on a 153,607-file repo versus 27 GiB for a classic worktree plus untracked copy (author benchmark, unverified) 86%

Evidence

github.com https://github.com/electric-dragon-80000v/pi-cowboy
news.ycombinator.com https://news.ycombinator.com/item?id=50142277

Actionability rated low.