---
title: "The web interface"
description: "The web interface: onus ui opens all of it in your browser"
canonical_url: "https://onushq.com/docs/web-interface"
markdown_url: "https://onushq.com/docs/web-interface.md"
x_farming_labs_generated_preamble: true
---

# The web interface
URL: /docs/web-interface
LLM index: /llms.txt
Description: The web interface: onus ui opens all of it in your browser

<!-- Generated by npm run docs:sync from crates/onus-cli/guide/web-interface.md in onushq/onus; edit it there. -->

# The web interface

`onus ui` opens everything Onus does for a repository in your browser: the map, reports, lanes and the judge, environments and evidence, tokens, escalations, the audit log and outcomes. It ships inside the binary; nothing is installed and nothing leaves your machine.

```sh
onus ui                      # the repository containing the current directory
onus ui --repo ../shop --port 0 --no-open
```

It prints an address such as `http://127.0.0.1:4387/#token=…` and opens it.

## What it shows

| Page | What you can do |
|---|---|
| Overview | Map totals, the component graph, uncommitted work, recent commits, what is set up |
| Map | The component graph (pan and zoom, by layer or by folder, focus on a component and its neighbours, filter imports, calls and types), a treemap by folder and size, components, files, events and external services; find symbols; per component, symbol and file: owners, public surface, dependents, dependencies, tests, declared invariants, and the impact of a change |
| Changes | Check uncommitted work (what `onus_check` gives an agent), or report any two refs, with an intent; download Markdown or JSON |
| Lanes & judge | The lane policy; submissions agents handed in over MCP; make a submission with evidence from the store, classify it and run the judge |
| Environments | Create environments, run commands, browse the evidence store and its artifacts, run a test once |
| Outcomes | Changes by week and lane, each agent setup's progress toward auto-merge, pull requests in flight, totals per agent setup and judge, the human-lane share and audit miss rate; record outcomes and incidents and find reverts, or fetch the records the GitHub Action keeps |
| Tokens & scopes | Generate a root key, plan a task, suggest reads, mint, inspect, check and narrow tokens |
| Escalations | File requests with evidence; decide by policy, grant or deny |
| Audit log | Every decision, and whether the hash chain is intact |
| onus.yaml | Edit it with a form (components, labels, boundary rules, contracts, lanes, events and services, tests, the environment) or as YAML, checked as you type; review the changes and save. Edits touch only the lines they change, so comments and alignment stay as written, and the map is rebuilt with the new config at once. Start from what `onus init` suggests |
| Guide | This guide |

The map follows the files on disk, so pages show your work as you edit.

## Where things are kept

- Outcome records: `.onus/outcomes.jsonl` (`--outcomes`); when that file does not exist, the `onus/records` branch the GitHub Action keeps (`origin/onus/records`), read-only
- The audit log: `.onus/audit.jsonl` (`--audit`)
- Escalation requests: `.onus/escalations/` (`--escalations`), with granted tokens beside them for the agent to collect
- Submissions from agents: `.onus/submissions/`
- The root key pair: `~/.onus-keys` (`--keys`)
- Evidence: the repository's git directory, as for `onus env`

## Security

The server listens on 127.0.0.1 only and answers only requests addressed to a loopback name, so a web page elsewhere cannot reach it through DNS rebinding. Its API needs the session token from the address it printed; the token travels in the address's fragment, which browsers never send to a server, and the page keeps it for the tab only. Cross-origin requests are refused. Anyone who can run programs as you can already do what the interface does.

## Building from source

Release binaries include the interface. A build from source embeds it when `ui/build` exists:

```sh
cd ui && npm ci && npm run build
cargo build --release -p onus-cli
```

Without it, `onus ui` serves the API and a page that says how to add the interface. To work on the interface itself, run `ONUS_UI_TOKEN=dev onus ui --no-open` and, in `ui/`, `npm run dev`, then open `http://localhost:5173/#token=dev`.

## Sitemap

See the full [sitemap](/sitemap.md) for all pages.
Docs-scoped sitemap: [/docs/sitemap.md](/docs/sitemap.md).
Well-known sitemap: [/.well-known/sitemap.md](/.well-known/sitemap.md).