Euler Finance Agent Skill

Core guide for interacting with Euler Finance V2 protocol. Contains rules across 5 categories covering vault operations, EVC orchestration, risk management, architecture concepts, and security.

Companion Skills

For specialized topics, use these companion skills:

euler-irm-oracles - Oracle adapters, EulerRouter, price resolution, Interest Rate Models
euler-earn - EulerEarn yield aggregation, strategies
euler-advanced - Hooks, flash loans, fee flow, rewards
euler-data - Lens contracts, subgraphs, contract interfaces, developer tools

When to Apply

Reference these guidelines when:

Depositing, borrowing, or managing positions on Euler vaults (EVK)
Batching operations via the Ethereum Vault Connector (EVC)
Monitoring health factors and liquidation risk
Understanding Euler architecture (vault types, market design)
Security practices and audit information

Rule Categories by Priority

#	Category	Impact	Prefix	Key Questions
1	Vault Operations	CRITICAL	`vault-`	Get APY, deposit, borrow, create market
2	EVC Operations	CRITICAL	`evc-`	Batch calls, sub-accounts, operators
3	Risk Management	HIGH	`risk-`	Check health, liquidation, risk managers, curators
4	Architecture	HIGH	`arch-`	Market design, vault types
5	Security	CRITICAL	`sec-`	Audits, best practices

Quick Reference

1. Vault Operations (CRITICAL)

vault-get-apy - How to get vault APY and interest rates
vault-deposit - How to deposit assets into a vault
vault-borrow - How to borrow assets from a vault
vault-repay - How to repay borrowed debt
vault-create-market - How to create a new vault/market

2. EVC Operations (CRITICAL)

evc-batch - How to batch multiple operations atomically
evc-sub-accounts - How to use sub-accounts for isolated positions
evc-operators - How to delegate control via operators
evc-enable-collateral - How to enable vault as collateral

3. Risk Management (HIGH)

risk-check-health - How to check account health factor
risk-liquidation - How liquidations work on Euler
risk-managers - Understanding risk manager roles

4. Architecture (HIGH)

arch-market-design - Understanding Euler market design
arch-vault-types - Core, Edge, and Escrow vault types

5. Security (CRITICAL)

sec-audits - Security practices and audit information

Core Protocol Components

Ethereum Vault Connector (EVC)

The EVC is the foundational layer mediating between vaults. It provides:

Batching: Execute multiple operations atomically
Sub-accounts: 256 isolated positions per address
Operators: Delegate control over your accounts to other addresses
Deferred checks: Temporarily violate constraints within a batch

Euler Vault Kit (EVK)

Credit vaults extending ERC-4626 with borrowing:

Standard ERC-4626 deposit/withdraw/mint/redeem
Borrow and repay functionality
Collateral and controller management
LTV ratios (borrow LTV vs liquidation LTV)

How to Use

Read individual rule files for detailed explanations and code examples:

rules/vault-get-apy.md
rules/evc-batch.md
rules/risk-check-health.md

Each rule file contains:

Brief explanation of why it matters
Incorrect code example with explanation
Correct code example with explanation
Additional context and references

Full Compiled Document

For the complete guide with all rules expanded: AGENTS.md

euler-vaults

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