cross-chain
Cross-chain bridge and multi-chain development expertise. Supports LayerZero, Chainlink CCIP, Wormhole, and Axelar for omnichain messaging, token bridging, and cross-chain state verification.
npx skills add a5c-ai/babysitter --skill cross-chain --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Cross-Chain Development Skill Expert cross-chain bridge development and multi-chain integration. ## Capabilities - **LayerZero**: Omnichain messaging and OFT tokens - **Chainlink CCIP**: Cross-chain interoperability protocol - **Bridge Verification**: Implement verification logic - **Finality Handling**: Handle chain finality differences - **Wormhole/Axelar**: Alternative bridge protocols - **Canonical Bridges**: Token bridge implementations - **State Verification**: Cross-chain state proofs ## LayerZero Integration ### OFT Token (Omnichain Fungible Token) ```solidity // SPDX-License-Identifier: MIT pragma solidity ^0.8.20; import { OFT } from "@layerzerolabs/lz-evm-oapp-v2/contracts/oft/OFT.sol"; contract MyOFT is OFT { constructor( string memory _name, string memory _symbol, address _lzEndpoint, address _delegate ) OFT(_name, _symbol, _lzEndpoint, _delegate) { _mint(msg.sender, 1000000 * 10 ** decimals()); } } ``` ### OApp (Omnichain Application) ```solidity import { OApp } from "@layerzerolabs/lz-evm-oapp-v2/contracts/oapp/OApp.sol"; import { Origin } from "@layerzerolabs/lz-evm-oapp-v2/contracts/oapp/interfaces/IOAppReceiver.sol"; contract CrossChainCounter is OApp { uint256
- Capabilities
- LayerZero Integration
- OFT Token (Omnichain Fungible Token)
- OApp (Omnichain Application)
- LayerZero Configuration
- Chainlink CCIP
- Token Transfer
- Cross-Chain Message
- Wormhole Integration
- Token Bridge
- Bridge Security Patterns
- Rate Limiting
- Circuit Breaker
- Message Verification
What does the cross-chain skill do?
Cross-chain bridge and multi-chain development expertise. Supports LayerZero, Chainlink CCIP, Wormhole, and Axelar for omnichain messaging, token bridging, and cross-chain state verification.
How do I install it?
Run `npx skills add a5c-ai/babysitter --skill cross-chain --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.