# Core Functionality

The **Core Functionality** of Term Strategy Vaults combines the robust, battle-tested foundation of Yearn V3's ERC-4626 implementation with custom integrations and risk management mechanisms tailored to Term's fixed-rate lending protocol. This hybrid design ensures both seamless compatibility with DeFi standards and specialized functionality for managing Term’s unique portfolio requirements.

***

**YearnV3 Base Operations**

The **Yearn V3** foundation provides the essential scaffolding for Term Strategy Vaults. By implementing the ERC-4626 standard, Yearn V3 ensures standardized asset operations, including deposits, withdrawals, and share accounting. Key features include:

* **Asset Operations**: Efficient handling of deposits, withdrawals, and liquidity deployment via hooks like `_deployFunds` and `_freeFunds`.
* **Profit Mechanics**: Smooth profit realization and linear unlocking to prevent manipulation of price-per-share (PPS).
* **Fee Management**: Transparent performance fee distribution between curators and Yearn governance.
* **Security Enhancements**: Reentrancy protections, sandwich attack prevention, and robust access controls.

This foundational layer provides Term Strategy Vaults with a secure, modular, and efficient vault structure for managing assets.

***

**Term Protocol Operations**

Building on the Yearn V3 foundation, the **Term-specific functionality** introduces custom integrations to manage fixed-rate lending portfolios effectively. These include:

1. **Liquidity Management**:
   * Automated portfolio adjustments using Term-specific hooks like `_harvestAndReport`.
   * Comprehensive valuation of repoToken holdings, idle liquidity, and pending auction offers.
2. **Auction Participation**:
   * Controlled submission of auction offers by the designated manager.
   * Real-time validation of repoToken and auction parameters to maintain portfolio integrity.
3. **Direct Repo Token Liquidity**:
   * Public interface for selling repoTokens into the vault, ensuring efficient liquidity management.
   * Validation and enforcement of portfolio constraints during token purchases.
4. **Risk Management**:
   * Strict enforcement of portfolio constraints, including:
     * Concentration limits.
     * Liquid reserve requirements.
     * Weighted average duration caps.
     * Collateral quality checks.
   * Continuous monitoring of portfolio health through automated processes.

The Term layer transforms Yearn's flexible vault structure into a specialized solution for managing Term’s fixed-rate lending portfolios while adhering to stringent risk controls.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://developers.term.finance/periphery-contracts/curated-vaults/core-functionality.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.