SAFE OPEN-SOURCE CODING AGENT

Policy-checked execution
for
agentic dev.

x0ne harness is a safe open-source coding agent. Every action is checked against your policy before it runs. Three isolated bodies · host, VM, browser · behind one gateway.

book a pilot → how it works
the stack

Fourteen crates, one toolchain.

⌬

x0ne-runtime

host · 93 typed actions

Typed MCP server. The policy is evaluated before execution · snapshots, simulate, audit. Child processes start from a cleared environment, and PATH and LD_* are refused.

93 typed actionsdetails →
▦

x0ne-vm

KVM · 29 vm_* tools

QEMU/KVM body. Screenshot, click, OCR, snapshot and restore.

29 vm_*details →
◉

x0ne-browser

Chromium · 19 browser_*

Isolated Chromium over CDP. Allowlist, audit, rate-limit.

19 browser_*details →
⌗

x0ne-orchestrator

gateway · orchestration

MCP gateway and conversation loop. Refusals are recorded in a session journal written 0600. No global bypass switch.

runtime · vm · browserdetails →
◇

x0ne-code

agent · CLI + TUI + HTTP

LLM-driven coding agent. Anthropic, any OpenAI-compatible endpoint, and local models via Ollama.

~50 slash commandsdetails →