Linzumi

A chat where every channel ships code.

Channels your team already knows. A fleet of coding agents inside every one. Driven from your phone, your bus, your bed — by you and everyone you work with.

A chat that codes for you

A fleet of coding agents at your fingertips.

Drive from anywhere. Bring your team. Paste below to take command.

$ npx -y @linzumi/cli@latest signup
A mouse at a command-center console surrounded by floating screens
Codex commander

Command your coding agents en masse and on the go.

Your agents only sleep when they run out of work. Linzumi makes sure that never happens.

  • Close your laptop. Your agents keep running.
  • Steer from your phone. No SSH, no tmux maniac mode.
  • Preview the build before you’re back at your desk.

Linzumi is your codex commander.

Two mice meeting across a floating holographic panel
A day on Linzumi

Your team in the thread. The fleet on the desk.

Watch a launch land — one channel, your team, agents shipping alongside.

#launch-prep
live
M
Maya
@maya
D
Devon
@devon
LLinzumi
chat · live
@mayaLet's finish up our launch prep.
@maya/codex burst the hero CTA on confetti
@codexrunning on maya-mac
@devonHow's the header looking?
@mayaHere, let me show you →
@devonAh, this is great! Ship it!
maya-mac· trusted bridge
Commander
Codex
running
  • hero.tsx
  • +24 confetti.ts
Dev server:3000
live
preview-hero.linzumi.dev
Backed by
  • Y Combinator
  • Matrix
  • SV Angel
  • Decibel
  • Pioneer Fund
  • Axiom Partners
A mouse tangled in cables, looking puzzled
The problem

Coding agents today have two homes. Both are bad.

Today, option one

Lonely Codex in your terminal

You start a 25-minute run, walk to lunch, come back to find it stalled at minute 3 on a yes/no question. Your teammate has no idea what's happening. Your eng lead has no idea what files it touched. The only way to redirect from the bus is to SSH from a terminal app like a maniac.

Today, option two

Sandboxed agents in someone else's VM

Devin, Codex Cloud, and friends solve the watch-it half by running in their cloud. But now "works for the agent" doesn't mean "works on your laptop." You merge the PR and find the gap at 4pm.

Linzumi is the third home: your fleet on your real machine, your team in the thread, every move logged.

A mouse leading a small wedge formation of agents
Outcomes

More agents. More leverage.

One operator can steer many agents in parallel — without losing the team's eyes on the work.

You ship more.

Multiple humans steer multiple AI agents in parallel, in one thread. Throughput isn't bottlenecked by any one person's attention. The team you already have does the work of a team twice the size.

You catch problems early.

Teammates jump in mid-run with “wait, do it the other way” before the agent has solidified the bad approach. Problems get caught when they're cheap to fix, not after merge.

You trust the result.

Your eng lead can let the team use AI aggressively because the diffs aren't a black box. They were watched, tried, and steered the whole way. Permissioned runtime, directory-level ACLs, full audit log of every action.

Throughput follows judgment and taste.

Each teammate steers multiple AI agents in parallel. The team you already have does the work of a team twice the size — bottlenecked by judgment and taste, not headcount.

A mouse presenting a chart on an easel
Walkthrough

Inside a Linzumi thread.

One paste. One thread. A fleet of coding agents and your whole team, working real code in the chat you already know.

#hero-confetti
Runner · Mac Studio
  1. Y
    You@you9:14 AM
    Shipping confetti for the demo hero — tagging in @codex.
    $ codex \
      --config sandbox_workspace_write.network_access=true \
      -- 'add a confetti burst when the hero CTA is clicked'
  2. CodexAgent@codex9:14 AM
    On it. Spinning up on your Mac Studio against feat/hero-confetti.
  3. CodexAgent@codex9:16 AM
    First pass landed. Preview is running.
    feat/hero-confetti · 3 files
    • src/components/hero.tsx+18
    • src/lib/confetti.ts+24
    • src/styles/globals.css+2 −1
  4. M
    Maya Chen@maya9:17 AM
    Nudged --accent in browser VS Code — sharper for the burst tone.
    /* globals.css */
    --accent: oklch(0.62 0.21 250);
  5. P
    Priya Singh@priya9:18 AM
    On the train, opened the preview on my phone — looks good, ship it.
    preview-hero.linzumi.dev
    image · 412 × 869
  6. CodexAgent@codex9:19 AM
    Merged feat/hero-confetti ✓ Deployed to preview.
  7. D
    Devon@devon9:21 AM
    Nice. I've got two more Codex sessions in #hero-stripe btw.
Reply in #hero-confetti
$ npx -y @linzumi/cli@latest signup

Paste this into a terminal to start a Linzumi workspace. The bootstrap walks you through the rest.

A mouse holding a shield
Trust & control

Agents work inside guardrails you set.

Every agent works inside the thread. You set what they can see. You see what they do. Linzumi never opens a backdoor to your laptop.

A live #linzumi-support channel ships with your workspace

Created on first claim, the Linzumi team on call. We can read this channel. We cannot read your other threads, your repo, your tokens, or your Codex transcripts. If anything goes wrong on first run, post there. We read it.

Agents only see what you let them see

Approve directories explicitly. The rest of your machine is invisible, period.

Tunnels close when the conversation does

Forwarded ports are scoped to the thread. End the thread, end the access. No lingering exposure.

Permissions expire with the session

Capabilities don't persist quietly in the background. Re-grant explicitly to extend.

Every action leaves evidence

Commands, files, screenshots, test output, all attached to the thread, exportable, auditable.

Sensitive boundaries gate on humans

Network egress, credential reads, repo writes, gated on explicit operator approval. Agents never escalate themselves.

A mouse holding a wheel of cheese like a coin
Pricing

Team pricing coming soon.

Free for everyone during the preview.

Free for YC companies who sign up by Friday, May 15.

Locked in through 2027.

Sign up
A conductor mouse on a podium dispatching commands

Bring a fleet of coding agents into your team's chat.