A wallet that renews its own coins (Settings → Spending: self or exit) pays a Lightning invoice from the coins nearest expiry first, so fewer of them come up for a paid renewal (Stacker News request, 2026-10-29). Lightning sends only: the ASP takes those coins, whereas an Ark-to-Ark send would hand the recipient your short timelocks. The custodial default keeps the smallest coin that covers the payment (expiry costs nothing there), a coin past its timelock still goes last, and a pile of old crumbs that would breach the input cap falls back to largest-first. The closed-app NWC worker follows the mirrored tier the same wayHEADmaster

Co-Authored-By: Claude Opus 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01VMan6VLgQdujavxPsfU7A9

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