Oracle price deviation >X% from secondary

Evidence summary #

T-09 phase-2 signal. No secondary oracle feed mapping for the Slinky-based validator-reported price system has been established in the T-09 pipeline. Slinky requires >=6 robust oracle sources per market per dYdX docs. The Oct 2025 incident was a collateral-pool logic edge case, not an oracle price manipulation event. No oracle deviation incidents reported on dYdX v4 to date.

Sources #

Methodology #

Detect whether the primary oracle's reported price deviates >X% from the best available secondary source (another feed or venue).

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