diff --git a/.gitignore b/.gitignore
index b5e49e13..607e0875 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@ build/
 cache
 gql-cache*
 __pycache__
+output/
diff --git a/packages/lib/mq.ts b/packages/lib/mq.ts
index b74fb6b9..23027d45 100644
--- a/packages/lib/mq.ts
+++ b/packages/lib/mq.ts
@@ -1,6 +1,11 @@
 import { Queue, Worker } from 'bullmq'
-import { Job } from './types'
+import fs from 'fs'
+import path from 'path'
 import chains from './chains'
+import { Job } from './types'
+
+const MQ_INVENTORY = process.env.MQ_INVENTORY === 'true'
+const MQ_INVENTORY_PATH = process.env.MQ_INVENTORY_PATH || path.resolve(process.cwd(), 'output/extract-1-inventory.csv')
 
 export const q = {
   fanout: 'fanout',
@@ -69,6 +74,30 @@ export function connect(queueName: string) {
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
 export async function add(job: Job, data: any, options?: any) {
   const queue = job.bychain ? `${job.queue}-${data.chainId}` : job.queue
+  if (MQ_INVENTORY && queue === 'extract-1') {
+    try {
+      fs.mkdirSync(path.dirname(MQ_INVENTORY_PATH), { recursive: true })
+      if (!fs.existsSync(MQ_INVENTORY_PATH)) {
+        fs.writeFileSync(MQ_INVENTORY_PATH, 'jobName,abiPath,address,chainId,fromBlock,toBlock,outputLabel\n')
+      }
+      const csvEscape = (v: unknown) => {
+        const s = String(v ?? '')
+        return s.includes(',') || s.includes('"') ? `"${s.replace(/"/g, '""')}"` : s
+      }
+      const row = [
+        job.name,
+        data.abiPath ?? data.abi?.abiPath ?? '',
+        data.address ?? data.source?.address ?? '',
+        data.chainId ?? data.source?.chainId ?? '',
+        data.from ?? data.fromBlock ?? '',
+        data.to ?? data.toBlock ?? '',
+        data.outputLabel ?? ''
+      ].map(csvEscape).join(',')
+      fs.appendFileSync(MQ_INVENTORY_PATH, row + '\n')
+    } catch(error) {
+      console.error('📋', 'inventory write failed', error)
+    }
+  }
   if (!queues[queue]) { queues[queue] = connect(queue) }
   return await queues[queue].add(job.name, data, { priority: DEFAULT_PRIORITY, attempts: 1, ...options })
 }
@@ -155,3 +184,31 @@ export function computeConcurrency(jobs: number, options: ConcurrencyOptions) {
 export async function down() {
   return Promise.all(Object.values(queues).map(async queue => queue.close()))
 }
+
+if (MQ_INVENTORY) {
+  process.on('beforeExit', () => {
+    if (!fs.existsSync(MQ_INVENTORY_PATH)) return
+    const lines = fs.readFileSync(MQ_INVENTORY_PATH, 'utf-8').split('\n').filter(Boolean)
+    const total = lines.length - 1 // exclude header
+    if (total <= 0) return
+
+    const byName: Record<string, number> = {}
+    const byAbiPath: Record<string, number> = {}
+    for (let i = 1; i < lines.length; i++) {
+      const [jobName, abiPath] = lines[i].split(',')
+      byName[jobName] = (byName[jobName] || 0) + 1
+      if (abiPath) byAbiPath[abiPath] = (byAbiPath[abiPath] || 0) + 1
+    }
+
+    console.log(`\n📋 MQ Inventory Summary (extract-1): ${total} jobs`)
+    console.log('  By jobName:')
+    for (const [k, v] of Object.entries(byName).sort((a, b) => b[1] - a[1])) {
+      console.log(`    ${k}: ${v}`)
+    }
+    console.log('  By abiPath:')
+    for (const [k, v] of Object.entries(byAbiPath).sort((a, b) => b[1] - a[1])) {
+      console.log(`    ${k}: ${v}`)
+    }
+    console.log(`  CSV written to: ${MQ_INVENTORY_PATH}\n`)
+  })
+}