diff --git a/scripts/invoke.mjs b/scripts/invoke.mjs
index b7b912b..bc771c3 100644
--- a/scripts/invoke.mjs
+++ b/scripts/invoke.mjs
@@ -24,6 +24,24 @@ function parseArg(raw) {
   if (type === "address") return nativeToScVal(new Address(value), { type: "address" });
   if (type === "u32") return nativeToScVal(parseInt(value, 10), { type: "u32" });
   if (type === "i128") return nativeToScVal(BigInt(value), { type: "i128" });
+  // Support Vec<(Address, u32)> for release() recipients parameter.
+  // Format: vec-tuple-address-u32:[["GADDR...",5000],["GADDR...",5000]]
+  if (type === "vec-tuple-address-u32") {
+    const parsed = JSON.parse(value);
+    if (!Array.isArray(parsed)) {
+      throw new Error("vec-tuple-address-u32 value must be a JSON array of [address, bps] pairs");
+    }
+    const tuples = parsed.map((pair) => {
+      if (!Array.isArray(pair) || pair.length !== 2) {
+        throw new Error("Each element must be a 2-element array [address, bps]");
+      }
+      return nativeToScVal(
+        [new Address(pair[0]), nativeToScVal(parseInt(pair[1], 10), { type: "u32" })],
+        { type: "tuple" }
+      );
+    });
+    return nativeToScVal(tuples, { type: "vec" });
+  }
   throw new Error(`Unknown arg type: ${type}`);
 }