CodeNomad/packages/ui/README.md
Pascal André b768880958
refactor(chat): centralize transcript scroll writes and add opt-in tracing (#971)
Route every VirtualFollowList DOM and Virtua position write through one reason-labelled writeScroll chokepoint that owns programmatic marking, with no change to targets, scheduling, cancellation or recorded offsets. Add an opt-in persisted logger namespace (scroll) tracing writes, follow-mode transitions and unowned movements with no layout reads when disabled; expose data-follow-mode; label the remaining external writers with the closed reason type. Releases and no-op writes keep attribution accurate. Diagnosis: the escaped-reader and hold displacements are Virtua default-size re-estimation, browser clamping and compensation, fixed in #974. Gatekeeper rounds 1-3 resolved to zero findings.
2026-10-15 19:16:10 +02:00

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# CodeNomad UI
This package contains the frontend user interface for CodeNomad, built with [SolidJS](https://www.solidjs.com/) and [Tailwind CSS](https://tailwindcss.com/).
## Overview
The UI is designed to be a high-performance, low-latency cockpit for managing OpenCode sessions. It connects to the CodeNomad server (either running locally via CLI or embedded in the Electron app).
## Features
- **SolidJS**: Fine-grained reactivity for high performance.
- **Tailwind CSS**: Utility-first styling for rapid development.
- **Vite**: Fast build tool and dev server.
## Development
To run the UI in standalone mode (connected to a running server):
```bash
npm run dev
```
This starts the Vite dev server at `http://localhost:3000`.
## Building
To build the production assets:
```
npm run build
```
The output will be generated in the `dist` directory, which is then consumed by the Server or Electron app.
## Debug Logging
The UI routes logging through a lightweight wrapper around [`debug`](https://github.com/debug-js/debug). Its namespaces can be toggled at runtime:
- `sse` – Server-sent event transport and handlers
- `api` – HTTP/API calls and workspace lifecycle
- `session` – Session/model state, prompt handling, tool calls
- `actions` – User-driven interactions in UI components
- `foreground-refresh` – Visible-state reconciliation
- `scroll` – Transcript position writes, follow-mode transitions and unclaimed (`unowned`) scrolls; see `dev-docs/SESSION_HISTORY_NAVIGATION.md`
You can enable or disable namespaces from DevTools (in dev or production builds) via the global `window.codenomadLogger` helpers:
```js
window.codenomadLogger?.listLoggerNamespaces() // => [{ name: "sse", enabled: false }, ...]
window.codenomadLogger?.enableLogger("sse") // turn on SSE logs
window.codenomadLogger?.disableLogger("sse") // turn them off again
window.codenomadLogger?.enableAllLoggers() // optional helper
```
Enabled namespaces are persisted in `localStorage` under `opencode:logger:namespaces`, so your preference survives reloads.