1 files changed, 10 insertions, 3 deletions
diff --git a/src/ark/manager.js b/src/ark/manager.js
index aea6020..853ca84 100644
--- a/src/ark/manager.js
+++ b/src/ark/manager.js
@@ -1182,7 +1182,10 @@ export class ArkManager {
       .reduce((n, v) => n + v.amountSat, 0);
     if (expiredSat) return `insufficient ark balance (${expiredSat} sat expired and unusable)`;
     const cappedSat = this.state.vtxos.filter((v) => this._free(v) && this._capped(v)).reduce((n, v) => n + v.amountSat, 0);
-    if (cappedSat) return `insufficient ark balance (${cappedSat} sat have a history too long to spend and are waiting to be renewed)`;
+    // under dust a round won't take it either: only new money pays from here
+    if (cappedSat) return cappedSat < 330
+      ? `insufficient ark balance (${cappedSat} sat have a history too long to spend and are too few to renew; receive more to keep paying)`
+      : `insufficient ark balance (${cappedSat} sat have a history too long to spend and are waiting to be renewed)`;
     // coins a renewal took stay unspendable until its round confirms on-chain
     const renewing = lnShortfall(this.state.vtxos, this.state.actions, Infinity).renewingSat;
     return renewing
@@ -1524,8 +1527,9 @@ export class ArkManager {
     // fee — else gather largest-first: each input funds its own HTLC vtxo with
     // the same payment hash, and the server sums them into one payment.
     const busy = this._remoteBusy();
+    // a coin at the depth cap can't be an input: the ASP refuses the cosign
     const spendable = this.state.vtxos
-      .filter((v) => this._free(v, busy) && !this._expired(v, tip));
+      .filter((v) => this._free(v, busy) && !this._expired(v, tip) && !this._capped(v));
     let inputs = null, feeSat = 0;
     for (const v of this._spendOrder(spendable, tip, (a, b) => a.amountSat - b.amountSat)) {
       const fee = lnSendFee(amountSat, this.info.lnSendFees, [v], tip) + routing;
@@ -2711,8 +2715,11 @@ export class ArkManager {
     if (!tip) return 0;
     const covered = new Set((this.state.scheduled || []).flatMap((s) => s.inputIds));
     const cap = this.info.maxVtxoAmountSat || Infinity;
+    // a round output under dust (330 sat) is refused, so a coin that small
+    // can't be renewed on its own — asking only spends the wake's budget
     const coins = deep
-      .filter((v) => !covered.has(v.id) && v.expiryHeight > tip + 2 && v.amountSat <= cap)
+      .filter((v) => !covered.has(v.id) && v.expiryHeight > tip + 2 && v.amountSat <= cap
+        && v.amountSat - this.refreshFee([v], tip + 2) >= 330)
       .sort((a, b) => this.exitDepth(b) - this.exitDepth(a))
       .slice(0, maxCoins);
     let n = 0;