Blockchain Cross-Chain

Purpose

Guide cross-chain protocol selection, bridge architecture, and interoperability design. Covers all major cross-chain protocols with their trust models, security implications, and integration patterns.

Agent Protocol

Trigger Keywords

"cross-chain", "bridge", "IBC", "LayerZero", "Wormhole", "Axelar", "CCIP", "interop", "atomic swap", "shared sequencer", "cross-chain message", "wrapped token", "canonical bridge", "light client bridge", "GMP", "interchain", "multichain"

Input Context

• Problem type (asset transfer/message passing/data query/atomic execution)
• Source and destination chains with finality models
• Security requirements (trust minimization, audit level, value secured)
• Performance needs (latency, throughput, cost budget)
• Existing infrastructure (current bridge usage, token standards)

Output Artifact

Cross-chain architecture specification: protocol selection, trust model, fee model, security analysis, implementation plan.