diff --git a/packages/statement-store/src/session/session.ts b/packages/statement-store/src/session/session.ts
index 3124441d..4bd5a7a6 100644
--- a/packages/statement-store/src/session/session.ts
+++ b/packages/statement-store/src/session/session.ts
@@ -21,6 +21,20 @@ import { StatementData } from './scale/statementData.js';
 import type { StatementProver } from './statementProver.js';
 import type { Filter, Message, ResponseMessage, Session } from './types.js';
 
+declare global {
+  /**
+   * Optional hook a host application can install to attach human-readable
+   * labels to statement-store session topics (e.g. `peer-incoming`,
+   * `self-outgoing`). Called from within {@link createSession} when the
+   * session opens its first subscription, so a custom statement-store
+   * adapter can render log lines like `sub#1[peer-incoming]` instead of
+   * opaque topic hex. Undefined by default — host apps that don't care
+   * about diagnostics can ignore it.
+   */
+  // eslint-disable-next-line no-var
+  var __registerStatementStoreTopicLabel: ((topic: unknown, label: string) => void) | undefined;
+}
+
 export type SessionParams = {
   localAccount: LocalSessionAccount;
   remoteAccount: RemoteSessionAccount;
@@ -165,6 +179,9 @@ export function createSession({
         deliverStatementData(statementData);
       } else if (statementData.tag === 'response') {
         if (state.outgoingRequest?.requestId !== statementData.value.requestId) return;
+        console.info(
+          `[StatementStore][session] response received — ${state.outgoingRequest.tokens.length} pending message(s) in batch will be resolved`,
+        );
         const responseMessage: ResponseMessage = {
           type: 'response',
           localId: statementData.value.requestId,
@@ -189,6 +206,7 @@ export function createSession({
     if (state.outgoingRequest === null) {
       const requestId = nanoid();
       state.outgoingRequest = { requestId, messages: [encoded], tokens: [token] };
+      console.info(`[StatementStore][session] outgoing batch START — 1 message (no pending)`);
       encodeAndSubmitRequest(requestId, state.outgoingRequest.messages);
     } else {
       const currentTotal = state.outgoingRequest.messages.reduce((s, m) => s + m.length, 0);
@@ -196,9 +214,15 @@ export function createSession({
         state.outgoingRequest.messages.push(encoded);
         state.outgoingRequest.tokens.push(token);
         state.outgoingRequest.requestId = nanoid();
+        console.info(
+          `[StatementStore][session] outgoing batch APPEND — ${state.outgoingRequest.messages.length} messages now (previous batch had no response yet)`,
+        );
         encodeAndSubmitRequest(state.outgoingRequest.requestId, state.outgoingRequest.messages);
       } else {
         state.messageQueue.push({ encoded, token });
+        console.info(
+          `[StatementStore][session] outgoing batch FULL — message queued, ${state.messageQueue.length} in queue`,
+        );
       }
     }
   }
@@ -215,6 +239,14 @@ export function createSession({
 
   function ensureStoreSubscription(): void {
     if (storeUnsub) return;
+
+    // Optional consumer-side hook: register human-readable labels for the
+    // session's topics so any custom statement-store wrapper can render
+    // logs like `sub#1[peer-incoming]` instead of opaque hex. The hook is
+    // a global no-op unless the host app has installed it.
+    globalThis.__registerStatementStoreTopicLabel?.(incomingSessionId, 'peer-incoming');
+    globalThis.__registerStatementStoreTopicLabel?.(outgoingSessionId, 'self-outgoing');
+
     storeUnsub = statementStore.subscribeStatements({ matchAll: [incomingSessionId] }, page => {
       for (const statement of page.statements) {
         processIncomingStatement(statement);