index.md

layout	home
hero	name text tagline actions Cybros A managed agent kernel you host yourself. Nexus keeps your conversations, drives the agent loop, gates tool calls and delivers tool work to runners on your own machines. rho, the agent that ships with it, is a personal assistant and a coding agent in one. theme text link brand Install the default bundle /get-started/install theme text link alt Build your own agent /get-started/build-an-agent theme text link alt What is Cybros? /overview/what-is-cybros
features	title details link linkText Use rho The default agent. Talk to it in a browser, in Telegram or from your editor; it remembers, schedules, asks before risky actions and works on your files through a runner. Enough for most daily needs out of the box. /use/conversations Use rho title details link linkText Build your own agent Nexus runs the loop, keeps history, routes tools and records usage. Your application owns prompts, model choice and policy. rho is the reference implementation — it uses nothing you cannot use. /get-started/build-an-agent Build an agent title details link linkText Run tools where the files are Runners execute tools on a workstation, a server or a container and only ever dial out. Execution environments are separate from the kernel by design. /runners/ Runners

Choose your starting point

You want to	Start here
Use the default bundle — Nexus and rho on your own machine or server	Install the stack, then use rho
Run Cybros for a small team: models, members, upgrades and backups	Operate
Build an agent application with your own prompts, interface or channel	Build your own agent
Add an execution environment — a laptop, a server, a container	Runners
Call models directly through the configured providers	Direct model calls
Look up an endpoint, an event type, a status or a limit	Reference

What Cybros is

• Nexus is the kernel and gateway: one Account with human and agent members, workspaces, conversations, durable runs, model access across providers, tool delivery, approvals, usage accounting and retention.
• rho is the default agent application: an always-on personal agent and a coding agent, served through a browser page, Telegram, an ACP server for editors and a CLI. It is built only on Nexus's public APIs and is the reference for building your own.
• Runners and tool providers execute tools. They register with Nexus, announce what they serve and claim work from an inbox over outbound HTTP.

Cybros is built for professional users and small teams who want a managed agent platform without sending their work to a hosted harness. It runs on a laptop, a LAN server or a public host. The source is at jasl/cybros.ai.