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+# Multi-hop route discovery
+
+StableRoute discovers indirect paths when no direct pair exists between
+source and destination assets. The engine walks the registered pair graph
+to find feasible hops while respecting per-pair fees and liquidity ceilings.
+
+Operational notes:
+
+1. Register intermediate pairs before expecting multi-hop quotes.
+2. Each hop applies its own `feeBps` and amount bounds.
+3. Failed discovery returns `404 not_found` rather than a partial quote.
+
+Implementation lives in the quote handler within `src/index.ts`; extend
+`docs/pricing.md` when changing hop selection heuristics.