I can't forget the experience of connecting my crypto wallet to an automation tool. It wasn't a malicious program, claiming to save me time—automatically swapping currencies, staking, arbitrage while I sleep. I stared at the screen, heart pounding, repeatedly prompted with signature requests, and I kept confirming each one. It felt like handing over the keys to my house to a stranger, and still asking them not to make a copy.

But I went ahead anyway; curiosity overcame fear. The bot completed a transaction, seemingly without issues, but I remained tense. In the world of on-chain operations, I understand the risks all too well: an infinite approval that can never be revoked; entering the wrong contract address or clicking a phishing link, and your wallet instantly becomes someone else's automatic ATM.

This underlying anxiety actually reflects the core contradiction of the entire crypto ecosystem—our desire for automation tools to handle tedious on-chain tasks: automated trading, scheduled reward collection, dynamic position adjustments. Yet, we also fear losing control over our assets. The heart of this contradiction is precisely what some new projects are working to solve.

The traditional approach is to grant proxy software the same permissions as the main wallet. But that's like hiring a万能管家 and handing them the key to your safe—hidden risks abound. A smarter solution is to introduce the concept of session identity. Simply put, it's like issuing a temporary work permit to the automation agent. You don't have to give up your main wallet's private key; instead, you generate a short-term, valid session key for specific tasks. This key has strict time limits and automatically expires once the time is up, with permissions strictly confined to certain operations.

This mechanism allows users to enjoy the convenience of automation without risking their entire assets. For DeFi users, it's a crucial breakthrough in achieving controllable automation.