diff --git a/control_plane/src/emit/otap.rs b/control_plane/src/emit/otap.rs
index 2ba50f227..ed056b90b 100644
--- a/control_plane/src/emit/otap.rs
+++ b/control_plane/src/emit/otap.rs
@@ -284,10 +284,13 @@ fn build_asap_sketches_config(sp: &EdgeSketchProcessor, window_secs: Option<u64>
     } else {
         m.insert("mode".into(), Value::String("batch".to_string()));
     }
-    m.insert(
-        "aggregation_id".into(),
-        Value::String(sp.aggregation_id.clone()),
-    );
+    // PR 5 alignment (mirroring #244 / #246 / #250's wire cleanups):
+    // `aggregation_id` was the controller-allocated string IDs the
+    // patched asap-otel processors don't consume — sid identity is
+    // content-addressed at the backend via `(metric, attrs_fingerprint,
+    // agg_kind_canonical)`. The field stays on `EdgeSketchProcessor`
+    // as internal emitter plumbing for cross-stage references during
+    // the DAG walk; it just doesn't reach the wire here.
     m.insert(
         "sketch_kind".into(),
         Value::String(sketch_kind_tag(&sp.sketch_kind).into()),
diff --git a/control_plane/src/emit/telegraf.rs b/control_plane/src/emit/telegraf.rs
index 25fb59cc6..d28365d63 100644
--- a/control_plane/src/emit/telegraf.rs
+++ b/control_plane/src/emit/telegraf.rs
@@ -155,7 +155,12 @@ fn emit_processors_allsketches(
     if let Some(w) = window_secs {
         out.push_str(&format!("  window_duration = \"{w}s\"\n"));
     }
-    out.push_str(&format!("  aggregation_id = \"{}\"\n", sp.aggregation_id));
+    // PR 5 alignment (mirroring #244 / #246 / #250's wire cleanups):
+    // `aggregation_id` was the controller-allocated string the
+    // patched asap-otel processors don't consume — sid identity is
+    // content-addressed server-side via `(metric, attrs_fingerprint,
+    // agg_kind_canonical)`. Field stays on `EdgeSketchProcessor` as
+    // internal emit plumbing; it just doesn't reach the wire here.
     out.push_str(&format!(
         "  sketch_kind = \"{}\"\n",
         sketch_kind_tag(&sp.sketch_kind)