tool-use

Enable Claude to call external tools via tool_use blocks.

Updated Apr 10, 2026
One-click install
npx skills add https://github.com/theslashdojo/dojo --skill tool-use-theslashdojo
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: tool-use
Source: https://github.com/theslashdojo/dojo/tree/main/nodes/anthropic/tool-use
Command: npx skills add https://github.com/theslashdojo/dojo --skill tool-use-theslashdojo

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires anthropic, and includes scripts (resource) components.

What problem does it solve?

Claude needs to take actions, fetch data, or interact with external systems, but requires a structured mechanism to call external tools and manage tool responses.

Core Features & Use Cases

  • Define tools with name, description, and input_schema so Claude can call them via tool_use blocks.
  • Execute tool results in a deterministic, multi-turn loop to perform real-world tasks (API calls, file operations, data retrieval).
  • Support agentic workflows by coordinating tool calls, handling tool_choice modes, and leveraging server tools for scalable operations.
  • Use cases include real-time data gathering, automation of routine tasks, and integration with external services in AI agent pipelines.

Quick Start

Define your tools with a name, description, and input_schema, then start a Claude conversation that uses tool_use to call those tools.

Frequently Asked Questions about tool-use

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I connect Claude to external APIs for real-time data retrieval?

You can connect Claude to external APIs by defining tools with a name, description, and input_schema. Claude then uses tool_use blocks and tool_result exchanges to fetch real-time data and execute API calls within a multi-turn loop.

What is the best way to build agentic workflows that automate external system interactions?

Building agentic workflows involves defining external tools and leveraging tool_choice modes to coordinate calls. Claude executes these tool calls in a deterministic multi-turn loop to automate routine tasks and interact with external services.

How does the tool_use block mechanism work for AI agent pipelines?

The tool_use mechanism works by sending a structured request containing the tool name and parameters. Claude processes this block, expects a tool_result exchange with the fetched data, and continues the multi-turn loop to complete the pipeline task.

Does the Anthropic API support multi-turn loops for tool calling?

Yes, the Anthropic API supports multi-turn loops for tool calling. You can define an input_schema for your tools, and Claude will manage the tool_use and tool_result exchanges deterministically across multiple conversational turns.

Can I use server tools for scalable API automation with Claude?

Yes, you can leverage server tools for scalable operations within your automation workflows. By defining tools with a specific name and description, Claude can handle external-system interactions and coordinate large-scale API automation tasks.

What are the limitations of using tool_choice modes for real-time data gathering?

Tool_choice modes require a strictly defined input_schema and deterministic tool_result responses to function correctly. Complex real-time data gathering may need extensive multi-turn loop management to handle unexpected external API responses or missing data.