Agent Skills - Sei Docs

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 gives accurate, Sei-specific answers to Sei questions instead of generic Ethereum defaults. It works with Claude Code, Cursor, Copilot, Windsurf, or any other assistant.

Why this matters

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

Without sei-skill	With sei-skill
`maxFeePerGas` in transactions	Legacy `gasPrice` (Sei does not use the EIP-1559 base fee)
“Finality takes ~12 confirmations”	Instant finality: 1 confirmation is final
SSTORE costs 20,000 gas	SSTORE costs 72,000 gas, the same on Sei Mainnet and Sei Testnet. It is an on-chain parameter that governance can adjust (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 only the ones that you need. Contracts covers 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 and awareness of OCC parallel execution
Account abstraction (ERC-4337) and contract upgradeability
Verification workflows on Seiscan
Security patterns and common errors

Frontend covers dApp UI development:

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

Ecosystem covers infrastructure and integrations:

RPC endpoints (public, community, paid SaaS)
Bridges (LayerZero V2, Circle CCTP v2 for native USDC)
- IBC is disabled in both directions
Oracles (Chainlink, Pyth, API3, RedStone)
Indexers (The Graph, Goldsky, Dune, Moralis)
DeFi protocols (DragonSwap, Yei, Takara, Saphyre)
Validators, node operations, and grants

Quick install

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

By default, the script installs the skill for Claude Code in ~/.claude/skills/sei/. For other AI assistants, see the installation guide.

Next steps

Installation guide

Install sei-skill for Claude Code, Cursor, Copilot, Windsurf, and other assistants. Choose your variant.

Example prompts

See what better answers look like. The prompts cover contracts, frontend, and ecosystem.

​Why this matters

​Three knowledge domains

​Quick install

​Next steps

Installation guide

Example prompts

Why this matters

Three knowledge domains

Quick install

Next steps