diff --git a/lib/algorithm.js b/lib/algorithm.js
index 625e7f8..e5a83ad 100644
--- a/lib/algorithm.js
+++ b/lib/algorithm.js
@@ -45,7 +45,7 @@ class Algorithm {
    * @param {Range} remoteHaveRange
    * @returns {Range}
    */
-  #wantAllRange(rootMsgHash, localHaveRange, remoteHaveRange) {
+  #wantAllRange(localHaveRange, remoteHaveRange) {
     return remoteHaveRange
   }
 
@@ -56,7 +56,7 @@ class Algorithm {
    * @param {number} count
    * @returns {Range}
    */
-  #wantNewestRange(rootMsgHash, localHaveRange, remoteHaveRange, count) {
+  #wantNewestRange(localHaveRange, remoteHaveRange, count) {
     const [minLocalHave, maxLocalHave] = localHaveRange
     const [minRemoteHave, maxRemoteHave] = remoteHaveRange
     if (maxRemoteHave <= maxLocalHave) return [1, 0]
@@ -73,27 +73,26 @@ class Algorithm {
    * @param {number} count
    * @returns {Range}
    */
-  #wantOldestRange(rootMsgHash, localHaveRange, remoteHaveRange, count) {
+  #wantOldestRange(localHaveRange, remoteHaveRange, count) {
     // FIXME:
   }
 
   /**
-   * @param {string} rootMsgHash // FIXME: delete YAGNI
    * @param {Range} localHave
    * @param {Range} remoteHave
    * @param {Goal?} goal
    * @returns {Range}
    */
-  wantRange(rootMsgHash, localHave, remoteHave, goal) {
+  wantRange(localHave, remoteHave, goal) {
     if (!goal) return [1, 0]
     if (isEmptyRange(remoteHave)) return [1, 0]
     const { type, count } = parseGoal(goal)
     if (type === 'all') {
-      return this.#wantAllRange(rootMsgHash, localHave, remoteHave)
+      return this.#wantAllRange(localHave, remoteHave)
     } else if (type === 'newest') {
-      return this.#wantNewestRange(rootMsgHash, localHave, remoteHave, count)
+      return this.#wantNewestRange(localHave, remoteHave, count)
     } else if (type === 'oldest') {
-      return this.#wantOldestRange(rootMsgHash, localHave, remoteHave, count)
+      return this.#wantOldestRange(localHave, remoteHave, count)
     }
   }
 
diff --git a/lib/stream.js b/lib/stream.js
index bb64f61..9be419b 100644
--- a/lib/stream.js
+++ b/lib/stream.js
@@ -113,7 +113,7 @@ class SyncStream extends Pipeable {
     this.#remoteHave.set(id, remoteHaveRange)
     const goal = this.#goals.get(id)
     const haveRange = this.#algo.haveRange(id)
-    const wantRange = this.#algo.wantRange(id, haveRange, remoteHaveRange, goal)
+    const wantRange = this.#algo.wantRange(haveRange, remoteHaveRange, goal)
     this.#localHave.set(id, haveRange)
     this.#localWant.set(id, wantRange)
     // prettier-ignore
@@ -128,7 +128,7 @@ class SyncStream extends Pipeable {
     this.#remoteWant.set(id, remoteWantRange)
     const goal = this.#goals.get(id)
     const haveRange = this.#localHave.get(id)
-    const wantRange = this.#algo.wantRange(id, haveRange, remoteHaveRange, goal)
+    const wantRange = this.#algo.wantRange(haveRange, remoteHaveRange, goal)
     this.#localWant.set(id, wantRange)
     const localBloom0 = this.#algo.bloomFor(id, 0, wantRange)
     this.sink.write({