jutsu

pstack by Lauren Tan (poteto), ported to Claude Code inside T3 Code.

One command, /jutsu, turns on poteto mode. Each task goes to the matching pstack playbook, and the work is proven before it is called done.

Install
git clone https://github.com/sergchil/jutsu.git
cd jutsu && ./install.sh
View on GitHub What is pstack?
The jutsu mascot: a potato ninja making a hand sign, with four shadow clones typing on laptops behind it

How it works

  1. Type $jutsu and your task in a T3 thread. In plain Claude Code, type /jutsu and your task.

  2. jutsu picks the matching pstack playbook, such as bug fix, feature, refactor, getting a PR to merge, or an overnight run. Then it follows the playbook's steps.

  3. It proves the work on the real thing, such as tests, the browser, or a simulator, before it says done. Poteto mode stays on for the whole thread until you type /jutsu off.

Made for T3 Code

In T3, jutsu uses T3's own tools: parallel threads in their own worktrees, PR watching, schedules, the browser, and simulators.

T3 Code's skill picker with $jutsu typed in the message box and the Jutsu personal skill highlighted
$jutsu in T3's skill picker.
Three T3 threads working in parallel, each in its own git worktree
One request, three changes. jutsu starts a T3 thread for each change, each in its own worktree, then reviews all three.

Use it

Needs
Claude Code 2.1.292 or newer, and Python 3.9 or newer for the installer. T3's thread, PR, and schedule tools need T3 Code nightly from 2026-10-03. Without T3, jutsu runs in plain Claude Code.
Start
$jutsu fix the flaky login test in a T3 thread
Stop
/jutsu off
Models
/jutsu:setup-pstack picks the model and effort for each role
Update
git pull in the jutsu folder
Remove
./uninstall.sh removes everything jutsu added. Your repos are not touched.

Compared with other pstack ports

jutsu also fixes three pstack bugs that are still open upstream: #449 and #470 in worktree cleanup, and watch-pr on a repo with no CI (PR #510).

Table comparing jutsu with pstack, pstack-claude, open-pstack, two t3-pstack ports, and two pstack-t3 ports on 11 points, checked 2026-10-14
Checked 2026-10-14. The full table covers 11 repos. See the evidence for every cell.

Built on pstack

pstack and poteto mode are Lauren Tan's work. The playbooks, the principles, and the way of working are hers. jutsu only connects them to Claude Code and T3 Code. To learn pstack itself, read her guide.

pstack guide pstack on GitHub poteto on X