---name: tools-uidescription: Tool lifecycle UI components for React/Next.js from ui.inference.sh. Display tool calls: pending, progress, approval required, results. Capabilities: tool status, progress indicators, approval flows, results display. Use for: showing agent tool calls, human-in-the-loop approvals, tool output. Triggers: tool ui, tool calls, tool status, tool approval, tool results, agent tools, mcp tools ui, function calling ui, tool lifecycle, tool pending---

Install the belt CLI skill: npx skills add belt-sh/cli

Tool UI Components

Tool lifecycle components from ui.inference.sh.

Quick Start

npx shadcn@latest add https://ui.inference.sh/r/tools.json

Tool States

State	Description
pending	Tool call requested, waiting to execute
running	Tool is currently executing
approval	Requires human approval before execution
success	Tool completed successfully
error	Tool execution failed

Components

Tool Call Display

import { ToolCall } from "@/registry/blocks/tools/tool-call"

<ToolCall
  name="search_web"
  args={{ query: "latest AI news" }}
  status="running"
/>

Tool Result

import { ToolResult } from "@/registry/blocks/tools/tool-result"

<ToolResult
  name="search_web"
  result={{ results: [...] }}
  status="success"
/>

Tool Approval

import { ToolApproval } from "@/registry/blocks/tools/tool-approval"

<ToolApproval
  name="send_email"
  args={{ to: "user@example.com", subject: "Hello" }}
  onApprove={() => executeTool()}
  onDeny={() => cancelTool()}
/>

Full Example

import { ToolCall, ToolResult, ToolApproval } from "@/registry/blocks/tools"

function ToolDisplay({ tool }) {
  if (tool.status === 'approval') {
    return (
      <ToolApproval
        name={tool.name}
        args={tool.args}
        onApprove={tool.approve}
        onDeny={tool.deny}
      />
    )
  }

  if (tool.result) {
    return (
      <ToolResult
        name={tool.name}
        result={tool.result}
        status={tool.status}
      />
    )
  }

  return (
    <ToolCall
      name={tool.name}
      args={tool.args}
      status={tool.status}
    />
  )
}

Styling Tool Cards

<ToolCall
  name="read_file"
  args={{ path: "/src/index.ts" }}
  status="running"
  className="border-blue-500"
/>

Tool Icons

Tools automatically get icons based on their name:

Pattern	Icon
search*, find*	Search
read*, get*	File
write*, create*	Pencil
delete*, remove*	Trash
send*, email*	Mail
Default	Wrench

With Agent Component

The Agent component handles tool lifecycle automatically:

import { Agent } from "@/registry/blocks/agent/agent"

<Agent
  proxyUrl="/api/inference/proxy"
  config={{
    core_app: { ref: 'openrouter/claude-sonnet-45@0fkg6xwb' },
    tools: [
      {
        name: 'search_web',
        description: 'Search the web',
        parameters: { query: { type: 'string' } },
        requiresApproval: true, // Enable approval flow
      },
    ],
  }}
/>

Related Skills

# Full agent component (recommended)
npx skills add inference-sh/skills@agent-ui

# Chat UI blocks
npx skills add inference-sh/skills@chat-ui

# Widgets for tool results
npx skills add inference-sh/skills@widgets-ui

Documentation

• Adding Tools to Agents - Equip agents with tools
• Human-in-the-Loop - Approval flows
• Tool Approval Gates - Implementing approvals

Component docs: ui.inference.sh/blocks/tools