Cairo Library Calls

Explain Starknet library calls that execute code from another class using class hash; use when a request involves library dispatchers, class hashes, or library_call_syscall.

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Cairo Library Calls

Overview

Explain how to execute code from another class in the caller context using library calls.

Quick Use

  • Read references/library-calls.md before answering.
  • Distinguish contract calls from library calls (context and storage).
  • Use a LibraryDispatcher with a class hash when possible.

Response Checklist

  • Use library calls when you need to reuse logic without deploying another instance.
  • Mention that library calls run in the caller's storage context.
  • Use Serde for calldata and return data when using low-level syscalls.

Example Requests

  • "How do I call a class by hash from a contract?"
  • "What is the difference between library_call and contract_call?"
  • "How do I use library_call_syscall directly?"

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Frequently asked questions

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