cohere-core-workflow-b

name	cohere-core-workflow-b
description	Build tool-use agents and function calling with Cohere API v2. Use when implementing multi-step agents, function calling, or building autonomous tool-using workflows with Cohere. Trigger with phrases like "cohere tool use", "cohere agents", "cohere function calling", "cohere multi-step".
allowed-tools	Read, Write, Edit, Bash(npm:*), Grep
version	1.5.0
license	MIT
author	Jeremy Longshore <[e-mail]>
tags	["saas","ai","nlp","cohere"]
compatibility	Designed for Claude Code

Cohere Tool Use & Agents (Core Workflow B)

Overview

Build multi-step tool-using agents with Cohere's Chat API v2. The model decides which tools to call, you execute them, and feed results back in a loop until the task is complete.

Prerequisites

• Completed cohere-install-auth setup
• Understanding of cohere-core-workflow-a (RAG)
• Command R7B or newer model (required for tool use)

Instructions

Step 1: Define Tools

import { CohereClientV2 } from 'cohere-ai';

const cohere = new CohereClientV2();

// Define tools the model can call
const tools = [
  {
    type: 'function' as const,
    function: {
      name: 'get_weather',
      description: 'Get current weather for a city',
      parameters: {
        type: 'object' as const,
        properties: {
          city: { type: 'string', description: 'City name' },
          unit: { type: 'string', enum: ['celsius', 'fahrenheit'], description: 'Temperature unit' },
        },
        required: ['city'],
      },
    },
  },
  {
    type: 'function'  ,
    : {
      : ,
      : ,
      : {
        :   ,
        : {
          : { : , :  },
          : { : , :  },
        },
        : [],
      },
    },
  },
];