wormhole by hairyf/blockchain-master

Skill is based on Wormhole (reference implementation) at commit 612caaa, generated 2026-02-24.

Wormhole is a generic cross-chain messaging protocol: guardians observe finalized messages on connected chains, reach consensus, and produce Signed VAAs. Applications (Token Bridge, NFT Bridge, oracles) sit on top; the core does not hold assets or deliver messages. Use this skill to integrate contracts with the core bridge and Token Bridge, operate or reason about guardian nodes, and use Cross Chain Queries (CCQ).

Core References

Topic	Description	Reference
Overview	Protocol model, VAA, core vs apps, flow	core-overview
VAA and Messaging	VAA structure, postMessage, consistency levels	core-vaa-and-messaging
Governance	Governance packet, ContractUpgrade, GuardianSetUpgrade	core-governance
Token Bridge	Payloads, attestToken, transfer, completeTransfer, createWrapped	core-token-bridge

Features

Topic	Description	Reference
Guardian Node	Components, observation lifecycle, reobservation, config	features-guardian-node
Governor and Notary	Chain limits, release/drop VAA, delay/blackhole	features-governor-and-notary
Queries (CCQ)	Cross Chain Queries, proxy server, permissions, call types	features-queries-ccq
Transfer Verifier	Guardian transfer verification, enabled chains	features-transfer-verifier

Best Practices

Topic	Description	Reference
Security Assumptions	Gossip, finality, guardians, keys, dependencies	best-practices-security-assumptions
Contract Integration	Emitter filtering, replay, redeem timing, repairVaa	best-practices-contract-integration