> For the complete documentation index, see [llms.txt](https://yieldex.gitbook.io/yieldex-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yieldex.gitbook.io/yieldex-docs/overview.md).

# Safe Delegation Mechanism (Session Keys)

1. **Short-term rights issuance** \
   User signs transaction through EOA, creating a smart wallet that stores permissions list, limit settings, and sends ERC-4337 contract to network.
2. **Whitelist specification**\
   For protocols (specific pools) and allowed operations (deposit, withdraw).
3. **Setting limits** \
   By amount (for example, no more than 3000 USDT) and validity period (number of blocks, or specific timestamp).
4. **Unauthorized access control**\
   When the limit is exceeded or an attempt to access unauthorized protocol occurs, functionality is blocked at the Permission Manager contract level.