Max-deviation threshold (bps)

Curve Finance's assessment for RD-F-058 — scored yellow on the v1.7.0 rubric. The evidence below is the curator's reasoning for this score.

Evidence summary #

CryptoSwap v2: informal 2x price_scale cap (see F057) — no explicit basis-point parameter. StableSwap-NG: no deviation threshold at all on rate oracle output. The 2x cap in CryptoSwap v2 prevents oracle spikes from single trade from being more than 2x last price_scale, but this is not a configured threshold parameter — it is a hardcoded design choice. Confidence medium because exact behavior requires simulation of edge cases.

Sources #

GitHub
Curve Tricrypto-NG main contractCurveTricryptoOptimizedWETH.vy tweak_price() — 2x cap as informal maximum deviationretrieved 2026-04-28

Methodology #

If a circuit breaker exists, read the configured deviation threshold in basis points.

See the full factor methodology and distribution across all protocols →

rubric_version v1.7.0 protocol curve-v2 factor RD-F-058 score yellow collected_at 2026-04-28 19:48:40