HaoPeng Zhang

I build AI automation workflows with n8n. Sharing free templates + build-in-public notes on content & SEO automation. Paid templates: https://payhip.com/haopengailab

Joined on Oct 5, 2026 https://payhip.com/haopengailab

HaoPeng Zhang

Oct 16

The SEO Blog Engine: A Teardown of the n8n Workflow That Writes My Drafts

#automation #ai #webdev #programming

3 min read

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HaoPeng Zhang

Oct 16

The Inbox Autopilot: What 60 Days of Letting an n8n Workflow Triage My Email Taught Me

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 16

The Hook Factory: 5 Prompt Angles I Automated in n8n (Steal the System)

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 16

My 9 AM Workflow Ran at 1 AM: The Timezone Bug That Only Strikes in Production

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 15

The Webhook Timeout Trap: Why My n8n Webhook Stopped Timing Out (Respond First, Work Later)

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 15

The Quiet Fail: How I Catch n8n Workflows That "Succeed" but Do Nothing

#automation #ai #webdev #programming

6 min read

HaoPeng Zhang

Oct 15

The Schema Guard: How I Catch LLM Output Changes Before They Break My n8n Pipelines

#automation #ai #webdev #programming

5 min read

HaoPeng Zhang

Oct 14

The Cost Ledger: How I Gave Every n8n Workflow Run a Price Tag

#automation #ai #webdev #programming

5 min read

HaoPeng Zhang

Oct 14

The Shadow Run: How I Test a New Workflow Version on Live Traffic Without Firing Side Effects

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 14

The Spread Collision: When LLM Output Silently Overwrites Your Workflow State

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 14

The Tag Linter: How I Catch Untagged n8n Nodes Before They Reach Production

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 14

Pure vs Effectful: Why My n8n Retry Policy Tags Nodes, Not Failures

#automation #ai #webdev #programming

3 min read

HaoPeng Zhang

Oct 14

The Retry Budget: Why My n8n LLM Workflows Retry Exactly Once, Then Page a Human

#automation #ai #webdev #programming

3 min read

HaoPeng Zhang

Oct 13

The Model-Change Protocol: What I Actually Do When the Tally Shows Two Weeks of Model Drift

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 13

The Prompt Contract Test: Failing the Build When the Prompt and Its Fixtures Disagree

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 13

The Weekly Tally: 12 Rejected Outputs Told Me My Prompt Was the Bug, Not the Model

#automation #ai #webdev #programming

3 min read

HaoPeng Zhang

Oct 13

The Human Half of the Gate: My 10-Minute Review-Queue SOP for n8n LLM Outputs

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 13

From Runbook to Script: Turning My n8n Pre-Publish Checklist Into a One-Command Gate

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 13

Trust, but Verify: How I Test n8n LLM Workflows Before They Touch Production

#automation #ai #webdev #testing

4 min read

HaoPeng Zhang

Oct 12

Two Models, One Pipeline: The Mini-First Cascade Behind My n8n Meeting-Notes Workflow

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 11

My Free n8n Template Gets Readers But Zero Sales — So I Rebuilt the Funnel Around It

#automation #ai #webdev #programming

4 min read

HaoPeng Zhang

Oct 11

The Sweeper Pattern: How I Reconcile Crashed n8n Jobs Without Guessing

#automation #ai #webdev #programming

5 min read

HaoPeng Zhang

Oct 11

No Idempotency Key? How I Make Gmail Sends Safe to Retry Anyway

#automation #ai #webdev #programming

5 min read

HaoPeng Zhang

Oct 11

The Crash Test Nobody Runs: What I Learned About "Exactly-Once" Building AI Workflows in n8n

#automation #ai #webdev #opensource

6 min read

HaoPeng Zhang

Oct 8

I built a free n8n workflow that turns messy meeting notes into action items

#ai #automation #productivity #opensource

2 min read

HaoPeng Zhang

Oct 7

5 ways your n8n AI agent breaks in production (and the quick test for each)

#ai #automation #opensource #productivity

2 min read

HaoPeng Zhang

Oct 6

Writing content hooks is hard — so I automated it with n8n (free template, now in the official n8n gallery)

#ai #automation #productivity #opensource

2 min read

HaoPeng Zhang

Oct 6

I automated my inbox triage with n8n + GPT-4o-mini (copy the exact workflow)

#ai #automation #productivity #opensource

3 min read

HaoPeng Zhang

Oct 5

I built a free n8n workflow that writes scroll-stopping content hooks

#ai #productivity #automation #opensource

2 min read

DEV Community

HaoPeng Zhang

Badges

Writing Debut

The SEO Blog Engine: A Teardown of the n8n Workflow That Writes My Drafts

Want to connect with HaoPeng Zhang?

The Inbox Autopilot: What 60 Days of Letting an n8n Workflow Triage My Email Taught Me

The Hook Factory: 5 Prompt Angles I Automated in n8n (Steal the System)

My 9 AM Workflow Ran at 1 AM: The Timezone Bug That Only Strikes in Production

The Webhook Timeout Trap: Why My n8n Webhook Stopped Timing Out (Respond First, Work Later)

The Quiet Fail: How I Catch n8n Workflows That "Succeed" but Do Nothing

The Schema Guard: How I Catch LLM Output Changes Before They Break My n8n Pipelines

The Cost Ledger: How I Gave Every n8n Workflow Run a Price Tag

The Shadow Run: How I Test a New Workflow Version on Live Traffic Without Firing Side Effects

The Spread Collision: When LLM Output Silently Overwrites Your Workflow State

The Tag Linter: How I Catch Untagged n8n Nodes Before They Reach Production

Pure vs Effectful: Why My n8n Retry Policy Tags Nodes, Not Failures

The Retry Budget: Why My n8n LLM Workflows Retry Exactly Once, Then Page a Human

The Model-Change Protocol: What I Actually Do When the Tally Shows Two Weeks of Model Drift

The Prompt Contract Test: Failing the Build When the Prompt and Its Fixtures Disagree

The Weekly Tally: 12 Rejected Outputs Told Me My Prompt Was the Bug, Not the Model

The Human Half of the Gate: My 10-Minute Review-Queue SOP for n8n LLM Outputs

From Runbook to Script: Turning My n8n Pre-Publish Checklist Into a One-Command Gate

Trust, but Verify: How I Test n8n LLM Workflows Before They Touch Production

Two Models, One Pipeline: The Mini-First Cascade Behind My n8n Meeting-Notes Workflow

My Free n8n Template Gets Readers But Zero Sales — So I Rebuilt the Funnel Around It

The Sweeper Pattern: How I Reconcile Crashed n8n Jobs Without Guessing

No Idempotency Key? How I Make Gmail Sends Safe to Retry Anyway

The Crash Test Nobody Runs: What I Learned About "Exactly-Once" Building AI Workflows in n8n

I built a free n8n workflow that turns messy meeting notes into action items

5 ways your n8n AI agent breaks in production (and the quick test for each)

Writing content hooks is hard — so I automated it with n8n (free template, now in the official n8n gallery)

I automated my inbox triage with n8n + GPT-4o-mini (copy the exact workflow)

I built a free n8n workflow that writes scroll-stopping content hooks