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cross-chain-pmm-lps/docs/05-oracles.md
2026-02-26 04:40:35 -08:00

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Oracles (Non-Negotiable for PMM Pegged Systems)

Minimum viable

  • USD tokens: P_oracle = 1.00 (with external sanity check)
  • EUR tokens: EURUSD feed
  • Optional: stablecoin health feeds (depeg detection)

Requirements

  • Median of multiple sources (or fallback hierarchy)
  • Heartbeat + staleness checks
  • If oracle stale → widen bands or pause active trades

Policy

  • Do not trade against a stale oracle; treat staleness as a risk trigger.
  • Document fallback order (e.g. primary chainlink, secondary Pyth, tertiary internal).

Config and peg bands: ../config/peg-bands.json.