AgentSkillsCN

cairo-l1-l2-messaging

当请求涉及在 Cairo 中使用内联属性与性能权衡时，讲解如何在特定场景下做出最优选择。

SKILL.md
--- frontmatter
name: cairo-l1-l2-messaging
description: Explain Starknet L1 and L2 messaging, l1_handler functions, and message syscalls; use when a request involves cross layer messaging in Cairo.

Cairo L1-L2 Messaging

Overview

Explain how messages flow between L1 and L2 and the contract patterns to send and receive them.

Quick Use

  • •Read references/l1-l2-messaging.md before answering.
  • •Use #[l1_handler] for L1 to L2 messages.
  • •Use send_message_to_l1_syscall for L2 to L1 messages.

Response Checklist

  • •Verify the L1 sender in l1_handler entry points.
  • •Remember that L2 to L1 messages must be consumed on L1.
  • •Use felt252 arrays for payloads.

Example Requests

  • •"How do I receive an L1 message in Cairo?"
  • •"How do I send a message to L1 from a contract?"
  • •"What is the Starknet messaging contract on L1?"