diff --git a/index.ts b/index.ts
index 18ee1d8..0870fff 100644
--- a/index.ts
+++ b/index.ts
@@ -9,9 +9,11 @@ import { banner } from "./src/banner.js";
 import { toJSON, toText } from "./src/http.js";
 import { ping } from "./src/ping.js";
 import { keyPair, parsePrivateKey } from "./src/auth.js";
+import { Metadata, boolean } from "./src/schemas.js";
 
 export async function action(options: WebhookRunOptions) {
   const cursor = fileCursor.readCursor(options.cursorPath);
+  const finalBlocksOnly = boolean.parse(options.finalBlocksOnly);
 
   // Block Emitter
   const { emitter, moduleHash } = await setup({...options, cursor});
@@ -34,7 +36,7 @@ export async function action(options: WebhookRunOptions) {
   emitter.on("output", async (data, cursor, clock) => {
     if (!clock.timestamp) return;
     const chain = new URL(options.substreamsEndpoint).hostname.split(".")[0];
-    const metadata = {
+    const metadata: Metadata = {
       status: 200,
       cursor,
       session: {
@@ -49,7 +51,7 @@ export async function action(options: WebhookRunOptions) {
       manifest: {
         substreamsEndpoint: options.substreamsEndpoint,
         chain,
-        finalBlockOnly: options.finalBlocksOnly,
+        finalBlocksOnly,
         moduleName: options.moduleName,
         type: data.getType().typeName,
         moduleHash,
@@ -60,7 +62,7 @@ export async function action(options: WebhookRunOptions) {
 
     // Queue POST
     queue.add(async () => {
-      await postWebhook(options.webhookUrl, body, privateKey, options);
+      await postWebhook(options.webhookUrl, body, metadata, privateKey, options);
       fs.writeFileSync(options.cursorPath, cursor);
     });
   });
diff --git a/package.json b/package.json
index 902a70b..1be0229 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "version": "0.9.1",
+  "version": "0.9.2",
   "name": "substreams-sink-webhook",
   "description": "Substreams Sink Webhook",
   "type": "module",
diff --git a/src/ping.ts b/src/ping.ts
index 4f6d4f7..112cbc5 100644
--- a/src/ping.ts
+++ b/src/ping.ts
@@ -8,7 +8,7 @@ export async function ping(url: string, privateKey?: Hex) {
 
   // send valid signature (must respond with 200)
   try {
-    await postWebhook(url, body, privateKey, { maximumAttempts: 0 });
+    await postWebhook(url, body, undefined, privateKey, { maximumAttempts: 0 });
   } catch (_e) {
     return false;
   }
@@ -20,7 +20,7 @@ export async function ping(url: string, privateKey?: Hex) {
 
   // send invalid signature (must NOT respond with 200)
   try {
-    await postWebhook(url, body, invalidprivateKey, { maximumAttempts: 0 });
+    await postWebhook(url, body, undefined, invalidprivateKey, { maximumAttempts: 0 });
     return false;
   } catch (_e) {
     return true;
diff --git a/src/postWebhook.ts b/src/postWebhook.ts
index c6b51c1..6ec2293 100644
--- a/src/postWebhook.ts
+++ b/src/postWebhook.ts
@@ -2,6 +2,7 @@ import { Hex } from "@noble/curves/abstract/utils";
 import { logger } from "substreams-sink";
 import { createTimestamp, sign } from "./auth.js";
 import logUpdate from "log-update";
+import { Metadata } from "./schemas.js";
 
 function awaitSetTimeout(ms: number) {
   return new Promise((resolve) => setTimeout(resolve, ms));
@@ -21,16 +22,17 @@ let start = now();
 // let lastUpdate = now();
 
 // TO-DO replace with Prometheus metrics
-function logProgress() {
+function logProgress(metadata?: Metadata) {
+  if ( !metadata ) return;
   const delta = now() - start;
   const rate = Math.round(blocks / delta);
   const minutes = Math.round(delta / 60);
   const seconds = delta % 60;
-  if ( blocks ) logUpdate(`[app] blocks=${blocks} [${rate} b/s] (${minutes}m ${seconds}s)`);
+  if ( blocks ) logUpdate(`[app] timestamp=${metadata.clock.timestamp} block_number=${metadata.clock.number} blocks=${blocks} [${rate} b/s] (${minutes}m ${seconds}s)`);
   blocks++;
 }
 
-export async function postWebhook(url: string, body: string, secretKey?: Hex, options: PostWebhookOptions = {}) {
+export async function postWebhook(url: string, body: string, metadata?: Metadata, secretKey?: Hex, options: PostWebhookOptions = {}) {
   // Retry Policy
   const initialInterval = 1000; // 1s
   const maximumAttempts = options.maximumAttempts ?? 100 * initialInterval;
@@ -81,7 +83,7 @@ export async function postWebhook(url: string, body: string, secretKey?: Hex, op
         continue;
       }
       // success
-      logProgress();
+      logProgress(metadata);
       return { url, status };
     } catch (e: any) {
       const error = e.cause;
diff --git a/src/schemas.ts b/src/schemas.ts
index 1739de6..fd4a0f5 100644
--- a/src/schemas.ts
+++ b/src/schemas.ts
@@ -18,17 +18,29 @@ export const ManifestSchema = z.object({
   type: z.string(),
   moduleHash: z.string(),
   chain: z.string(),
-  finalBlockOnly: boolean,
+  finalBlocksOnly: boolean,
 });
 export type Manifest = z.infer<typeof ManifestSchema>;
 
+export const SessionSchema = z.object({
+  traceId: z.string(),
+  resolvedStartBlock: z.number(),
+});
+export type Session = z.infer<typeof SessionSchema>;
+
+export const MetadataSchema = z.object({
+  status: z.number(),
+  cursor: z.string(),
+  session: SessionSchema,
+  clock: ClockSchema,
+  manifest: ManifestSchema,
+});
+export type Metadata = z.infer<typeof MetadataSchema>;
+
 export const makePayloadBody = <S extends z.Schema>(dataSchema: S) =>
   z.object({
     cursor: z.string(),
-    session: z.object({
-      traceId: z.string(),
-      resolvedStartBlock: z.number(),
-    }),
+    session: SessionSchema,
     clock: ClockSchema,
     manifest: ManifestSchema,
     data: dataSchema,