OIP-196 - Price Feed Resilience

Summary

This proposal upgrades the Olympus PRICE module to PRICE v1.2 in order to improve the resilience of price feeds used by protocol contracts, particularly for OHM.

PRICE v1.2 preserves backwards compatibility with the existing PRICE v1 interface, so downstream policies such as Operator, YieldRepurchaseFacility and EmissionManager do not need to be changed. The upgrade allows assets to be resolved from multiple price feeds using explicit strategies, deviation filtering and strict-mode failure behaviour.

Motivation

The protocol currently relies on a small number of oracle paths when resolving OHM. If a critical feed is stale, misconfigured or reporting incorrectly, automated protocol operations could make buy or sell decisions using an unsupported market price.

This proposal adds independent price sources, deviation-based filtering and fail-closed behaviour so PRICE can tolerate isolated feed failures while rejecting materially divergent prices.

Asset Configuration

USDS

USDS will be priced from:

• Chainlink USDS-USD
• Chainlink DAI-USD
• API3 USDS-USD

Strategy:

• getAveragePriceExcludingDeviations()
• 1% deviation threshold from the median
• Strict mode enabled, requiring at least 2 valid values
• No moving average