Run Claude Code as a team.
Hand work to named teammates, watch what each of them does, and the app comes to you when one needs an answer. The Claude Code CLI does the work itself, unchanged.
Free & open source · MIT · Installs Claude Code for you if it isn’t there
Watch the team work
One question goes to three teammates at once. Each tile streams what its teammate says, the diff under every change it makes, and the helpers it calls in, nested under it.
The log under a tile keeps the reads, the runs and the fetches, each listed once. A helper called without a type shows as the general-purpose agent it is.
SamOrchestratingturn 1 · 3 teammates · 6.1s
Find why the last item disappears at checkout
Three of them are on it: the checkout flow, the cart totals, the stock rules.
Code Reviewer0:41Reads the diff, names the risk
Editingcart/total.js
The total is rounded before the last line is added, so a cart that sums to 99.995 shows 100.00 and the reconciler drops the item that no longer fits. Rounding once, after the sum
cart/total.js+2 −1
41-const total = round(sum + line.price);
41+const total = sum + line.price;
44+return round(total);
general-purposeSearching **/cart*0:09Readcart/total.js · checkout.js · rounding.js
Runnpm test -- cart
Fetchdocs.stripe.com/rounding
Researcher0:33Reads the codebase
Readingrounding.js
Every other caller rounds after the sum. This one is the exception.
Readrounding.js · cart.test.js
Grep"subtotal"
Docs Editor0:26Docs and READMEs
Readingstock.md
The stock rules never touch the last line. Nothing to fix here.
Readstock.md · inventory.js
It comes to you when it needs you
A run that stops for a permission, or ends its turn on a question, tells you where you are: a mark on that chat in the sidebar, a system notification when the window is away, a toast when you are in the app on another chat, and one reminder after two minutes. It all clears the moment you answer.
Approvals show the exact command. “Don’t ask again” allows that command, not the whole tool.
Leave the chat and the reply keeps going. It is there, finished or still streaming, when you come back.
Zetremnow
Code Reviewer is waiting for permission
npm test 2>&1 | tail -50
Which files have no test coverage?
Code Reviewer needs youOpenno answer after 2:00 · reminded once
A teammate is a brief you write once
Name them, say when to call them, give them standing instructions. A teammate belongs to one project or to all of them, and the team list splits into the two. Each carries its own model, tools and reading list.
Each one also chooses whether it works in a worktree of its own, so two of them can edit the same repository at the same time.
This project
All projects
Name
Release Checker
When to call them
Before a version is tagged.
Standing instructions
Walk the checklist: changelog, version, tests, the built app opens. Report what is missing, not what is fine.
Tools
Where it works
In the checkout, with everyone else
Name
Docs Editor
When to call them
When a README or a guide drifts from the code.
Standing instructions
Compare the docs with what the code does today. Fix the docs. Keep every sentence one that a newcomer can act on.
Tools
Where it works
In the checkout, with everyone else
Name
Bug Hunter
When to call them
When something fails and nobody knows why yet.
Standing instructions
Reproduce first. Then trace backward from the symptom to the line that caused it. No fix before the cause.
Tools
Where it works
In a worktree of its own
Name
Code Reviewer
When to call them
When a change needs a second pair of eyes before it lands.
Standing instructions
Read the diff, not the description. Name every risk with a file and a line. Prefer the smallest fix that makes the risk go away.
Tools
Where it works
In the checkout, with everyone else
Name
Researcher
When to call them
When a question needs the codebase read before anyone answers.
Standing instructions
Find where things actually happen. Quote the code. Say what you did not find as clearly as what you did.
Tools
Where it works
In the checkout, with everyone else
Name
Translator
When to call them
When copy or docs need another language.
Standing instructions
Translate meaning, not words. Keep the register of the source. Leave code, paths and product names as they are.
Tools
Where it works
In a worktree of its own
Your library takes proposals
Agents search the notes your project keeps before they say they do not know. When one wants to add a note, it proposes: a card you accept or dismiss, with an undo on the dismiss and the name of the chat that asked. Nothing lands in the library on its own.
You file directly as before — “To library” under an answer files that answer. The app holds each project’s library and never writes it into the project folder. A switch in the composer decides, per project, whether sessions get it.
Code Reviewer proposes a note
from “smooth.js waypoints”
Grid moves are 4-way by default
findingsgridmovement
grid.js only offers diagonal steps when allowDiagonalis set. The default is four-way, andsmooth.js assumes it.
The reply is the CLI’s, untouched.
Zetrem passes no persona and no style rules. Ask the terminal and ask Zetrem, and the same words come back. The one thing Zetrem can add is your project’s library, when you switch it on.
$ claude -p "Why does the last cart item vanish at checkout?"
The total is rounded before the last line is added, so a cart that sums to 99.995 shows 100.00 and the reconciler drops the item that no longer fits.
Fix: round once, after the sum, in cart/total.js:41.
$
Why does the last cart item vanish at checkout?
The total is rounded before the last line is added, so a cart that sums to 99.995 shows 100.00 and the reconciler drops the item that no longer fits.
Fix: round once, after the sum, in cart/total.js:41.
this turn · 84 out · 6.1s
Also in the box
A git view opens from the branch name in the titlebar: a graph of every branch beside a panel that stages, commits, switches branches, merges, keeps a stash, and pulls and pushes.
Several Claude accounts, switched without leaving the chat.
Plugins and MCP connectors, browsed, installed and signed into in the app.
Your account limits in the status bar, per model where they exist.
Conversations saved per project, so reopening one continues where it stopped.
English and Korean, spoken by every teammate from its first sentence on.
release · v1.0.1-beta.8 · macOS + Windows
Download Zetrem
It runs on your own machine on the Claude Code CLI. If you don’t have the CLI yet, the setup screen installs it and signs you in.
v1.0.1-beta.8 · latest release
Windows: SmartScreen will warn on first run. Choose "More info", then "Run anyway". The build is not code-signed yet.