# Agent Run (Lumen Halo): prompt.md (v1.0.0)

- id: `lumen-agent-run` · version 1.0.0 · block · pro (All-Access)
- category: AI interfaces
- build: Base UI (one set of files; its dependencies follow the build)
- install (this build): `npx shadcn@latest add @beautiful-ui-pro/lumen-agent-run`
- npm dependencies: none
- registry dependencies: utils, @beautiful-ui/lumen-badge, @beautiful-ui/lumen-button, @beautiful-ui/lumen-collapsible, @beautiful-ui/lumen-textarea, https://beautiful-ui.dev/r/lumen-foundation.json
- docs: https://beautiful-ui.dev/components/lumen-agent-run
- The install command carries everything this item needs (files, CSS, tokens, npm and registry dependencies). Prefer it to copying source by hand.

Watch an AI agent work and stay in charge of it: the prompt, elapsed time and tokens with pause, resume and stop; steps stream in as it reaches them; tool calls open to show what was sent and returned; a change waits for you to approve or reject it before anything is applied; a failed step says why and can be retried.

## Build it
- Stack: React 19 (`ref` is a plain prop), TypeScript, Tailwind CSS v4 utilities, a shadcn-initialised project with the `@/*` alias.
- Packages: none beyond React.
- Files: `components/ui/lumen/blocks/agent-run.tsx`; shared code: `lib/beautiful-ui/lumen/agent-run-model.ts`.
- Registry dependencies, installed with it automatically: shadcn `utils` (cn), `lumen-badge`, `lumen-button`, `lumen-collapsible`, `lumen-textarea`, `lumen-foundation`.
- Builds: one set of files for both, but its dependencies come in Base UI and Radix builds. Install the one that matches the project (see Install): a free item's bare URL installs the Base UI build of it and its dependencies.
- Exports to keep: `AgentRun`, and every exported type.
- CSS: the install merges this item's rules (the registry `css` field) into your global stylesheet, in `@layer components`, and adds the lumen foundation (tokens, keyframes, motion levels) once. Nothing to import by hand.
- Re-running `add` (or `--overwrite`) re-applies those rules: put overrides in your own CSS, never in the installed rules.
- Tokens: retheme with the `--lumen-*` custom properties (`--lumen-accent`, `--lumen-accent-text`, `--lumen-bad`, `--lumen-bad-text`, `--lumen-focus`, `--lumen-good`, `--lumen-good-text`, `--lumen-hairline`, `--lumen-ink`, `--lumen-muted-ink`, `--lumen-series-1`, `--lumen-series-2`, `--lumen-series-3`, `--lumen-series-4`, `--lumen-series-5`, `--lumen-series-6`, `--lumen-warn`, `--lumen-warn-text`); this item's CSS also reads `--lumen-font-mono`, `--lumen-font-sans`, `--lumen-radius-k`. Never add Tailwind colour classes inside the component.

```tsx
import { AgentRun, useAgentRun } from "@/components/ui/lumen/blocks/agent-run";
```

## Parts

| Part | data-slot | What it is for |
|---|---|---|
| `AgentRun` | `agent-run` | The run: header, steps, decisions. |

Style a part with `[data-slot="<slot>"]` selectors or its `className`; keep the attributes when editing.

## Sound
- Keep every `data-slot` and `data-sound` attribute: the sound layer reads them.
- Installing this item adds no audio. Nothing plays until the app mounts `GlassSoundProvider` once (install: `npx shadcn@latest add https://beautiful-ui.dev/r/glass-sound.json`, import from `@/components/beautiful-ui/glass-sound`); `GlassSoundToggle` is its mute control. Without a provider the audio engine never loads.

## Match the original
- Read `components/ui/lumen/blocks/agent-run.tsx` as the reference implementation before changing or recreating anything, and match it: sizes, colours per theme, motion timings, copy and behaviour.
- If you deviate (a prop you can't honour, a style you changed, a dependency you swapped), say so in your reply, part by part.
- Keep the accessibility contract, the keyboard map and the motion levels listed below.

## Use it when
- AI agent run, agent timeline, tool calls, human approval of an AI change, agent progress, LLM task trace, Lumen
- Showing an agent's work step by step while it runs
- Any AI action that changes something and must wait for a person

### Not when
- Chat conversations: use a chat thread
- Recommendations about records (not code or config): use Recommendation and Approval Flow

## Mistakes
- Never auto-approve diffs in production: onApprove is where the change is applied
- For a live agent, don't autoplay: dispatch start, then complete (when a tool returns) or fail, from the agent's events. The steps must be known up front; for open-ended agents, render your own RunState

## Usage

```tsx
import { AgentRun, useAgentRun } from "@/components/ui/lumen/blocks/agent-run";

const run = useAgentRun(script, { autoplay: true });
<AgentRun prompt={prompt} script={script} {...run} onApprove={(step) => applyDiff(step.diff)} />
```

## Props

| Prop | Type | Default | What it does |
|---|---|---|---|
| `prompt / script` | `string / AgentStep[]` | `the sample investigation` | Steps: { id, kind: plan \| tool \| diff \| message, title, detail?, tool?, diff? { file, lines }, ms?, tokens?, fails? }. |
| `state / dispatch` | `RunState / Dispatch` |  | From useAgentRun(script, { autoplay }) for scripted playback, or runReducer driven by a live agent's events: start, complete (a tool returned), fail, approve, reject, retry, pause, resume, stop. |
| `onApprove / onReject` | `(step) => void / (step, reason) => void` |  | Apply or record a decision on a change. |
| `onRestart` | `() => void` |  | Shows Run again after a run ends. |

Full docs: https://beautiful-ui.dev/components/lumen-agent-run

## Customising
- Colours: set the `--lumen-*` tokens on `:root`, or on a container with the `lumen-scope` class to retheme one area. Add the `lumen-inherit` class to follow your shadcn palette instead (`--chart-N`, `--destructive`).
- Dark mode follows the `.dark` class on an ancestor (the shadcn and next-themes convention).
- Update later by re-running the install with `--overwrite` (review the diff if you edited it). Changelog: https://beautiful-ui.dev/r/changelog.json

## Keyboard

| Keys | Action |
|---|---|
| Tab / Enter | Pause, stop, open a call, approve or reject |

## Motion inventory

| Interaction | What moves |
|---|---|
| Step | Each step rises in; the working title shimmers (still under reduced motion) |
| Waiting | The status dot pulses |

## Accessibility contract (preserve when editing)
- Step changes are announced in a polite live region; a waiting change says so
- Diff lines say Added or Removed to screen readers, not only by colour
- Rejecting a change needs a reason; nothing is applied without Approve

## Install

```bash
npx shadcn@latest add @beautiful-ui-pro/lumen-agent-run
```

Pro item: needs the `@beautiful-ui-pro` registry in `components.json` and `BEAUTIFUL_UI_TOKEN` in `.env.local` (https://beautiful-ui.dev/account). Setup: https://beautiful-ui.dev/docs/pro. Your components.json `style` picks the build: radix-*, new-york and default get Radix, base-* gets Base UI.

## Credits
- Built on shadcn/ui (https://ui.shadcn.com)

The lumen foundation (the tokens listed above, keyframes and motion levels) installs once with the first component; its CSS is public at https://beautiful-ui.dev/r/lumen-foundation.json.