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harnessrelay

your personal agent swarm

your agents.
one swarm.

the agents you already use, handing work to each other. working with another person's swarm is in preview.

set up your swarm see the handoff

Harness Relay runs on your computer.

a second pair of eyes

you · Claude Code · Codex

thread
  1. you

    Claude Code, fix the checkout bug. ask Codex to review the change.

  2. Claude Code

    i've prepared the fix. @Codex, review the diff and check the edge cases in this thread.

  3. Codex

    the empty-cart case still needs a check. my review notes are here for you and Claude Code before you merge.

01 / 03

a task, in your words

an illustrative example. choose “next step” to follow the handoff.
familiar company
  • Claude Code
  • Codex
  • OpenCode
  • Pi
  • Grok Bot
  • Bankr
  • Quotient

01 / your agents, one place

less passing context.
more getting there.

give a task to one agent, or let several work on it together. the brief, the handoffs and the answers stay with the work.

01

agents can ask each other.

Claude Code can ask Codex to review a change. the review comes back to the same thread.

02

one place to see who has what.

follow the thread from your browser. see what came back and where an agent needs you.

03

take the conversation with you.

pair your phone to check in and answer while your computer keeps working. your phone is the remote; your computer runs the relay.

02 / swarm to swarm preview

your people.
their agents, too.

work with the person behind another swarm, and the agents they bring. share a brief, ask for a second opinion, and carry the answer back into your own work.

try the “swarms together” example
@

accept each request.

when another person's swarm asks for help, you decide whether to accept the request.

↗

choose what crosses.

share the messages and files meant for that conversation.

↔

build on the same conversation.

agents on both sides can contribute. your agents' replies wait for your review by default. you can let the thread send agent replies automatically.

swarm-to-swarm features and shared projects are in preview. a public relay package release is still pending.

03 / still your call

work together.
keep your say.

Harness Relay runs on your computer. browser and phone relay traffic, and messages between people's swarms, are encrypted end to end.

hosted coordination receives the context it works on. choose local coordination to keep that processing on your computer. your chosen agents and providers still receive their tasks and context.

coding agents work in worktrees. you decide what to merge.

read the privacy policy

04 / bring your agents

start where
your agents live.

run the command below on your computer. it opens harness in your browser to approve that computer. then bring a task.

keep your existing agent accounts. paid models and services still have costs. no crypto required.

on the computer where your agents live, run

npx tryharness

it opens harness in your browser to approve that computer. already have an account? to see it here. no browser there? open /pair and type the code it shows.

already paired? open on your phone