This workflow follows the Gmail → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"name": "Reply Triage Agent \u2014 Smartlead to Zoho",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "smartlead-reply",
"responseMode": "responseNode",
"options": {}
},
"name": "Webhook: Smartlead Reply",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1,
"position": [
240,
300
]
},
{
"parameters": {
"functionCode": "// Extract fields from Smartlead payload into the shape Claude expects\nconst payload = $input.first().json;\nreturn [{\n json: {\n id: payload.reply_id || payload.id,\n from: payload.from_email,\n subject: payload.subject,\n body: payload.reply_body || payload.body,\n context: {\n campaign: payload.campaign_name,\n previous_touches: payload.previous_touches || 0,\n last_touch_days_ago: payload.last_touch_days_ago || 0\n }\n }\n}];"
},
"name": "Normalize Reply Shape",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
460,
300
]
},
{
"parameters": {
"url": "https://api.anthropic.com/v1/messages",
"method": "POST",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "x-api-key",
"value": "={{ $credentials.anthropicApi.apiKey }}"
},
{
"name": "anthropic-version",
"value": "2023-06-01"
},
{
"name": "content-type",
"value": "application/json"
}
]
},
"sendBody": true,
"bodyContentType": "json",
"jsonBody": "={\n \"model\": \"claude-sonnet-4-6\",\n \"max_tokens\": 1024,\n \"system\": \"You are a reply-triage agent. Output strict JSON matching the schema in prompt.md. Apply routing rules in order. Force human_review when confidence < 7.\",\n \"messages\": [\n {\n \"role\": \"user\",\n \"content\": {{ JSON.stringify($json) }}\n }\n ]\n}"
},
"name": "Claude: Classify Reply",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4,
"position": [
680,
300
]
},
{
"parameters": {
"functionCode": "// Parse Claude response, validate schema, route on suggested_action\nconst claudeOutput = $input.first().json;\nconst rawText = claudeOutput.content[0].text;\nlet parsed;\ntry {\n const match = rawText.match(/\\{[\\s\\S]*\\}/);\n parsed = JSON.parse(match[0]);\n} catch (e) {\n return [{ json: { error: 'unparseable', raw: rawText }, pairedItem: 0 }];\n}\n\nconst required = ['intent', 'confidence', 'suggested_action', 'crm_update', 'reasoning'];\nconst missing = required.filter(k => !(k in parsed));\nif (missing.length) {\n return [{ json: { error: 'schema_violation', missing, parsed }, pairedItem: 0 }];\n}\n\n// Force human review on low confidence regardless of model output\nif (parsed.confidence < 7) {\n parsed.suggested_action = 'human_review';\n parsed.reasoning += ' [override: confidence below threshold]';\n}\n\nreturn [{ json: parsed }];"
},
"name": "Parse & Guardrail Output",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
900,
300
]
},
{
"parameters": {
"dataType": "string",
"value1": "={{ $json.suggested_action }}",
"rules": {
"rules": [
{
"value2": "auto_reply",
"output": 0
},
{
"value2": "human_review",
"output": 1
},
{
"value2": "crm_update_only",
"output": 2
},
{
"value2": "suppress",
"output": 3
}
]
},
"fallbackOutput": 1
},
"name": "Route by Action",
"type": "n8n-nodes-base.switch",
"typeVersion": 1,
"position": [
1120,
300
]
},
{
"parameters": {
"operation": "create",
"subject": "=Re: {{ $('Webhook: Smartlead Reply').first().json.subject }}",
"to": "={{ $('Webhook: Smartlead Reply').first().json.from_email }}",
"message": "={{ $json.draft_reply }}",
"additionalFields": {
"approvalRequired": true
}
},
"name": "Draft Email (AE Approval)",
"type": "n8n-nodes-base.gmail",
"typeVersion": 2,
"position": [
1360,
180
]
},
{
"parameters": {
"channel": "#ae-review-queue",
"text": "=:eyes: Reply needs review \u2014 {{ $('Webhook: Smartlead Reply').first().json.from_email }}\nIntent: {{ $json.intent }} | Confidence: {{ $json.confidence }}\nReason: {{ $json.reasoning }}\nThread: <link to Smartlead>"
},
"name": "Slack: Human Review Queue",
"type": "n8n-nodes-base.slack",
"typeVersion": 2,
"position": [
1360,
300
]
},
{
"parameters": {
"operation": "update",
"module": "Leads",
"matchField": "Email",
"matchValue": "={{ $('Webhook: Smartlead Reply').first().json.from_email }}",
"updateFields": {
"Lead_Status": "={{ $json.crm_update.stage }}",
"Next_Follow_Up_Date": "={{ DateTime.now().plus({days: $json.crm_update.next_follow_up_days}).toISO() }}",
"Last_Reply_Sentiment": "={{ $json.sentiment }}",
"Last_Triage_Reasoning": "={{ $json.reasoning }}"
}
},
"name": "Zoho CRM: Update Lead",
"type": "n8n-nodes-base.zohoCrm",
"typeVersion": 1,
"position": [
1360,
420
]
},
{
"parameters": {
"operation": "update",
"module": "Leads",
"matchField": "Email",
"matchValue": "={{ $('Webhook: Smartlead Reply').first().json.from_email }}",
"updateFields": {
"Lead_Status": "Unsubscribed",
"Email_Opt_Out": true
}
},
"name": "Zoho CRM: Suppress Lead",
"type": "n8n-nodes-base.zohoCrm",
"typeVersion": 1,
"position": [
1360,
540
]
}
],
"connections": {
"Webhook: Smartlead Reply": {
"main": [
[
{
"node": "Normalize Reply Shape",
"type": "main",
"index": 0
}
]
]
},
"Normalize Reply Shape": {
"main": [
[
{
"node": "Claude: Classify Reply",
"type": "main",
"index": 0
}
]
]
},
"Claude: Classify Reply": {
"main": [
[
{
"node": "Parse & Guardrail Output",
"type": "main",
"index": 0
}
]
]
},
"Parse & Guardrail Output": {
"main": [
[
{
"node": "Route by Action",
"type": "main",
"index": 0
}
]
]
},
"Route by Action": {
"main": [
[
{
"node": "Draft Email (AE Approval)",
"type": "main",
"index": 0
}
],
[
{
"node": "Slack: Human Review Queue",
"type": "main",
"index": 0
}
],
[
{
"node": "Zoho CRM: Update Lead",
"type": "main",
"index": 0
}
],
[
{
"node": "Zoho CRM: Suppress Lead",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1",
"saveExecutionProgress": true,
"saveManualExecutions": true
},
"active": false,
"versionId": "demo-v1"
}
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About this workflow
Reply Triage Agent — Smartlead to Zoho. Uses httpRequest, gmail, slack, zohoCrm. Webhook trigger; 9 nodes.
Source: https://github.com/saurabhshuklagrowisto/saurabh-ai-systems/blob/main/claude-skills/reply-triage-agent/n8n-workflow.json — original creator credit. Request a take-down →
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