Interactive Demo
Tool Use Execution Loop
Tool Use Execution Loop is a free, interactive learning demo from the Start building with Claude course on Lykke. It helps you build intuition for Tool Use (Function Calling), Client-side Execution, API Schemas. Play with it directly in your browser — it features 2 buttons. This demo lives in the “Tool Use and Infrastructure” section of the course.
How to use this demo
- Use the “Next Step →”, “Reset” buttons to trigger actions or reset the demo.
- Experiment freely — there's nothing to break, and every change is reversible.
What you'll explore
- Tool Use (Function Calling)
- Client-side Execution
- API Schemas
Frequently asked questions
What does the Tool Use Execution Loop demo do?
Extending Claude's capabilities by allowing it to interact with external tools and APIs. Tool Use Execution Loop turns that idea into something you can manipulate directly and watch respond.
What Start building with Claude concept does Tool Use Execution Loop teach?
Extending Claude's capabilities by allowing it to interact with external tools and APIs. It focuses on Tool Use (Function Calling), Client-side Execution, API Schemas from the “Tool Use and Infrastructure” section.
What can I control in Tool Use Execution Loop?
The “Next Step →”, “Reset” buttons run actions or reset the demo. Every change updates the visualization in real time, so you can see exactly how each variable affects the outcome.
How does Tool Use Execution Loop fit into the Start building with Claude course?
This course provides a comprehensive guide for developers to integrate Claude into applications, covering the entire lifecycle from initial API calls to production deployment. It explores the two primary building paths:… This demo is the interactive piece for the “Tool Use and Infrastructure” section. Open the full Start building with Claude course wiki at https://www.getlykke.com/explore/public/start-building-with-claude-4423f20b-6458-4c18-9b13-b59d9eef03dd for notes, flashcards, quizzes and the other demos.
What will I understand better after using Tool Use Execution Loop?
You'll build intuition for Tool Use (Function Calling), Client-side Execution, API Schemas — and, crucially, see how they behave when you change the inputs, which is hard to get from a textbook or lecture on Start building with Claude alone.
From the Start building with Claude course
This interactive demo is part of the Tool Use and Infrastructure section. Explore the full Start building with Claude course wiki on Lykke — with notes, flashcards, quizzes and more interactive demos.
Open the Start building with Claude course →