# Tool call

A React component in [Beamline](https://beamline.io/)'s [AI & agents](https://beamline.io/components/ai) category. Live demo: https://beamline.io/components/tool-call

One tool call in an agent's run: status, what it did and a short result on one quiet row that opens to the exact input and output; stops for permission when needed, with progress and the reason if allowing fails.

## Use it for

- Showing the tools an agent called, as they run, with inputs and outputs on demand.
- A call that needs the person's permission before it runs.

## Not for

- The agent's thinking ([reasoning](https://beamline.io/components/reasoning)).
- A multi-step plan the person approves up front ([plan](https://beamline.io/components/plan)).
- An action that needs details and choices before approval ([approval-card](https://beamline.io/components/approval-card)).

## Anatomy

- status glyph (queued, spinner, check, cross, hand, ban)
- tool icon
- title (or tool name)
- tool name in mono
- result meta and duration; the word Failed or Denied when the call did not run to the end
- chevron (on hover or focus)
- Allow (primary) / Deny (ghost) for approval; they move under the title when the row is too narrow for both
- refusal line
- input and output blocks (open), always left to right, also in right-to-left pages

## Variants

- **status**: pending, running, approval, done, error, denied

## States

- collapsed
- open
- not expandable (no input/output yet)
- deciding (Allow or Deny shows progress)
- refused (reason under the row, still waiting)

## Keyboard

- Tab to the row; Enter or Space opens and closes it
- Tab to Deny / Allow while waiting for approval

## Motion

Opens on the system's smooth spring (fade only under reduced motion); the spinner closes into a check or cross when the call ends.

## Props

| Prop | Type | Default | Description |
| --- | --- | --- | --- |
| `name / title / status` (required) | `string / ReactNode / ToolCallStatus` | — |  |
| `input / output` | `unknown` | — | Objects are shown as formatted JSON. |
| `meta / duration / icon` | `ReactNode / number (s) / ReactNode` | — |  |
| `onApprove / onDeny` | `() => void \| Promise` | — | A promise shows progress; a rejection shows its reason. |
| `open / defaultOpen / onOpenChange` | `boolean` | — |  |
| `style / ref` | `CSSProperties / native Ref` | — |  |
| `classNames` | `ToolCallClassNames` | — |  |

## Built from

- spinner
- button

## Dependencies

`lucide-react`, `motion`

## Import

```tsx
import { ToolCall } from "@/components/tool-call/tool-call";
```

## Get it

Tool call is part of Beamline: 190 React components and screens your coding agent (Claude Code, Codex, Cursor or any MCP client) installs into your app through Beamline's MCP server, as a ready-built package or as plain React source you can change. $49 one payment (regular $200), no subscription, a year of updates, one licence for your whole team. [Get Beamline](https://beamline.io/checkout?pack=complete) · [Connect your agent](https://beamline.io/connect)

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