Euler Lens & Data Agent Skill

Developer tools and data access guide for Euler Finance V2. Covers SDK/Data V3 routing, Lens contracts, subgraphs, interfaces, and deployment tools. Prefer the euler-sdk companion skill for TypeScript application integrations.

When to Apply

Reference these guidelines when:

• Querying account positions and health using AccountLens
• Querying vault data using Lens contracts (VaultLens, OracleLens, IRMLens, UtilsLens)
• Tracking active accounts via Euler subgraph
• Looking up contract addresses and ABIs
• Building dashboards or analytics for Euler
• Integrating with Euler from frontends or bots

Rule Categories

| Rule | Impact | Description | |------|--------|-------------| | tools-lens | MEDIUM | Query vault, account, and oracle data via Lens contracts | | tools-subgraphs | MEDIUM | Track active accounts and vault factories via subgraph | | tools-interfaces | MEDIUM | Contract addresses and ABI references |

Quick Reference

Lens Contracts

• AccountLens - Query account positions, liquidity, health factor, time to liquidation (TTL)
• VaultLens - Query vault state, configuration, LTVs, IRM info
• OracleLens - Check oracle configuration and prices
• IRMLens - Interest rate model details and calculations
• UtilsLens - Utility functions: APY calculations, token balances, allowances
• EulerEarnVaultLens - Query EulerEarn vault data and strategies

Subgraphs

The subgraph is intentionally minimal - use Lens contracts for detailed data:

• Vault - Track which factory created each vault
• TrackingActiveAccount - Active accounts indexed by address prefix (first 19 bytes)
• TrackingVaultBalance - Per-account vault balances and debt (at the time of the last update)

Companion Skills

• euler-vaults - Core vault operations, EVC, risk management
• euler-irm-oracles - Oracle adapters and interest rate models
• euler-earn - Yield aggregation vaults
• euler-advanced - Hooks, flash loans, fee flow

How to Use

Read individual rule files for detailed explanations and code examples:

rules/tools-lens.md
rules/tools-subgraphs.md
rules/tools-interfaces.md

Full Compiled Document

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