⛔ HARD RULES (read first, always)

• ALWAYS call ethena_rate before any on-chain operation — cooldown duration is live from chain, not a constant
• NEVER call wallet_transfer directly — use ethena_* native tools only (wallet_transfer triggers UI block in deny-all policy)
• NEVER hardcode cooldown as "7 days" — actual value is fetched per request (currently ~24h)
• NEVER guess or assume the sUSDe/USDe exchange rate — call ethena_rate
• HARD LIMIT: max 5 tool calls per user request
• ON-CHAIN EXECUTION: after ethena_* returns calldata, sign and broadcast via wallet_sign_transaction — NEVER skip or simulate

Ethena — USDe Staking

Ethena lets users stake USDe to receive sUSDe, an ERC4626 yield-bearing token. Rewards accrue from ETH staking + funding rate delta-hedging. sUSDe value only increases or stays flat — never decreases.

Key Contracts (Ethereum Mainnet)