Agent Skills

A knowledge base that makes AI coding assistants Sei-aware — covering contracts, frontend, and ecosystem with Sei-specific facts baked in.

sei-skill is open source. Contribute at github.com/sei-protocol/sei-skill

sei-skill is a structured knowledge base for AI coding assistants. Install it once and your assistant — Claude Code, Cursor, Copilot, Windsurf, or any other — will answer Sei questions with Sei-specific accuracy instead of generic Ethereum defaults.

Why this matters

AI assistants are trained on broad Ethereum knowledge, not Sei’s specifics. Without sei-skill, they’ll confidently give you wrong answers:

Without sei-skill	With sei-skill
maxFeePerGas in transactions	Legacy gasPrice (Sei doesn’t use EIP-1559 basefee)
“Finality takes ~12 confirmations”	Instant finality — 1 confirmation is final
SSTORE costs 20,000 gas	SSTORE costs 72,000 gas — the same on mainnet and testnet (governance-adjustable on-chain parameter; reference)
PREVRANDAO for randomness	PREVRANDAO is not random on Sei — use Pyth VRF or Chainlink VRF
Generic ERC-20 patterns	Sei precompiles, pointer contracts, dual-address UX
@sei-js/evm imports	@sei-js/precompiles (the current package name)

Three knowledge domains

sei-skill covers three areas. You can install all three or just the ones you need.

Contracts — EVM smart contract development on Sei:

• Foundry and Hardhat setup for Sei networks
• All Sei precompiles (Staking, Governance, Bank, Distribution, JSON, P256)
• Pointer contracts for cross-VM asset bridging
• Gas optimization, OCC parallel execution awareness
• Account abstraction (ERC-4337), contract upgradeability
• Verification workflows on Seiscan
• Security patterns and common errors

Frontend — dApp UI development:

• Wagmi + Viem setup with Sei chain config
• Wallet integration (Sei Global Wallet, MetaMask, Compass, Ledger, EIP-6963)
• Dual-address UX (sei1... ↔ 0x... from the same key)
• Fast-finality patterns for 400ms blocks
• RainbowKit and ConnectKit integration

Ecosystem — infrastructure and integrations:

• RPC endpoints (public, community, paid SaaS)
• Bridges (LayerZero V2, Wormhole, Axelar, CCTP)
• Oracles (Chainlink, Pyth, API3, RedStone)
• Indexers (The Graph, Goldsky, Dune, Moralis)
• DeFi protocols (DragonSwap, Yei, Takara, Saphyre)
• Validators, node operations, grants

Quick install

git clone https://github.com/sei-protocol/sei-skill
cd sei-skill
./install.sh

This installs to ~/.claude/skills/sei/ by default (Claude Code). For other AI assistants, see the Installation Guide.

Next steps

Installation Guide

Install for Claude Code, Cursor, Copilot, Windsurf, and more. Choose your variant.

Example Prompts

See what better answers look like — prompts across contracts, frontend, and ecosystem.