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.
Installs into .claude/skills of the current project.
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---
name: cairo-library-calls
description: 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.
---
# 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?"
