euler-lending

Euler Lending Skills

Progressive disclosure skills for the Euler Lending protocol - covering the Ethereum Vault Connector (EVC), Euler Vault Kit (EVK), modular oracle system, and periphery infrastructure.

Installation

Add this plugin to your Claude Code configuration:

{
  "plugins": ["euler-lending"]
}

Skills

Core Infrastructure

Skill	Description	Trigger Keywords
euler-evc	Ethereum Vault Connector - sub-accounts, collateral/controller, batch operations, permits	EVC, sub-account, collateral, controller, batch, permit, status check
euler-evk-architecture	EVault modular architecture - dispatch pattern, modules, storage layout	EVK, EVault, modular, dispatch, vault modules

Vault Operations

Skill	Description	Trigger Keywords
euler-evk-vault	ERC-4626 vault operations - deposit, withdraw, mint, redeem, share conversion	deposit, withdraw, mint, redeem, eToken, shares, ERC-4626
euler-evk-borrowing	Borrowing operations - borrow, repay, pullDebt, interest accrual, DToken	borrow, repay, debt, pullDebt, dToken, interest accrual
euler-evk-liquidation	Liquidation mechanics - health checks, discount calculation, collateral seizure	liquidate, liquidation, unhealthy, violator, seize, discount
euler-evk-risk	Risk configuration - LTV, caps, IRM, oracle integration	LTV, collateral factor, supply cap, borrow cap, IRM, interest rate model

Supporting Infrastructure

Skill	Description	Trigger Keywords
euler-oracle	Modular oracle system - EulerRouter, Chainlink/Uniswap/Pyth adapters, bid/ask spreads	oracle, EulerRouter, price feed, Chainlink, Uniswap TWAP, Pyth, adapter
euler-periphery	Peripheral infrastructure - Perspectives, Lens, Swapper, IRM Factory, Governor	Perspective, vault validation, Lens, Swapper, IRM Factory, Governor

Architecture Overview

┌─────────────────────────────────────────────────────────────────┐
│                    EULER LENDING STACK                          │
├─────────────────────────────────────────────────────────────────┤
│                                                                 │
│  ┌───────────────────────────────────────────────────────────┐  │
│  │                      PERIPHERY                            │  │
│  │  Perspectives │ Lens │ Swaps │ IRM Factory │ Governor     │  │
│  └───────────────────────────────────────────────────────────┘  │
│                              │                                  │
│  ┌───────────────────────────▼───────────────────────────────┐  │
│  │                         EVK                               │  │
│  │  ┌─────────────────────────────────────────────────────┐  │  │
│  │  │                    EVault                           │  │  │
│  │  │   (ERC-4626 + Borrowing via Modular Dispatch)       │  │  │
│  │  │                                                     │  │  │
│  │  │  Modules: Token │ Vault │ Borrowing │ Liquidation   │  │  │
│  │  │           RiskManager │ Governance │ Initialize     │  │  │
│  │  └─────────────────────────────────────────────────────┘  │  │
│  └───────────────────────────────────────────────────────────┘  │
│                              │                                  │
│  ┌───────────────────────────▼───────────────────────────────┐  │
│  │                   ORACLE LAYER                            │  │
│  │  EulerRouter ─► Chainlink │ Uniswap │ Pyth │ Chronicle    │  │
│  └───────────────────────────────────────────────────────────┘  │
│                              │                                  │
│  ┌───────────────────────────▼───────────────────────────────┐  │
│  │                         EVC                               │  │
│  │  Sub-accounts (256/owner) │ Collateral/Controller Mgmt    │  │
│  │  Deferred Status Checks │ Batch Operations │ Permits      │  │
│  └───────────────────────────────────────────────────────────┘  │
│                                                                 │
└─────────────────────────────────────────────────────────────────┘

Key Concepts

EVC (Ethereum Vault Connector)

• Sub-accounts: Each address gets 256 sub-accounts via XOR encoding
• Collateral: Vaults holding user's collateral assets
• Controller: Lending vault that can control collateral (for liquidations)
• Deferred Checks: Status checks deferred until batch end for gas efficiency

EVK (Euler Vault Kit)

• ERC-4626: Standard vault interface for deposits/withdrawals
• Modular Dispatch: Functions delegatecall to specialized modules
• DToken: Separate ERC20-like token representing debt
• Interest Accumulator: Continuous interest accrual mechanism