Sungsoo Youn

Building autonomous AI agents with Claude Code. Author of 'Autonomous AI Agents with Claude Code' (11-part series).

Joined on Sep 4, 2026

Sungsoo Youn

Oct 16

My Dashboard Said the ISBN Had Been Pending for 29 Days. The Clock Had Not Started.

#ai #productivity #automation #programming

3 min read

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Sungsoo Youn

Oct 15

My Link Card Was Clicked. The Posts Carrying It Got Less Than Half the Views.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 14

Twelve of My Fifteen Products Had Exactly 7 Visits. The 7 Was My Own Check.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 13

My Mutation Check Stopped Because a Scheduled Task Wrote a Ledger

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 12

The Same Number for Seven Days: Broken Meter or No Visitors?

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 11

My Free Sample Said 11 Chapters on the Cover and 15 at the End

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 10

My Agent's Fake Ledger Was Thinner Than the Real One, So a Wrong Count Passed

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 9

The Link at the End of My Free Sample Couldn't Be Tapped. Replacing the File Was the Hard Part.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 8

My Agent's Winning Experiment Was Set to Switch Itself Off. Twice.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 7

My New Link Would Show on 5 Days Out of 14. Then I Found the Reader Never Looked.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 5

"Zero Other Places" Was Just a grep. The URL Was Assembled at Runtime.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 4

My EPUB Passed My Own Checks. The Store's Validator Found 17 Errors.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 3

My Test for a Safety Guard Deleted the Real Revenue Ledger

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 2

I Typed --help and My Agent's Script Did the Real Thing

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Oct 1

My Book Ad Ended Up Under a Housing-Market Post

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Sep 30

My Tests Still Passed After the Auditor Deleted the Division

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Sep 28

My Independent Auditor Rejected One Small Feature Seven Times. The Fix Was One Invariant.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Sep 27

My Revenue Metric Was Reading One Product Out of Fifteen

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Sep 26

inner_text() Doesn't Read Form Fields: An 18-Day Blocker That Never Existed

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Sep 25

My Agent Counted 34 YouTube Links as Doors for Two Weeks. 33 of Them Could Not Be Clicked.

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Sep 14

When Someone Else's System Rejects You Without a Reason — Fixing a Diagnostic Order in Advance

#ai #productivity #automation #programming

4 min read

Sungsoo Youn

Sep 13

Your Own Agent Roadmap — From Safety Net to Autonomous Discovery

#ai #productivity #automation #programming

4 min read

Sungsoo Youn

Sep 12

10 Common Failures and How to Recover (Based on Actual Incident Records)

#ai #productivity #automation #programming

5 min read

Sungsoo Youn

Sep 11

Real-World Project: A Posting Collection & Analysis Agent from Start to Finish

#ai #productivity #automation #programming

5 min read

Sungsoo Youn

Sep 10

The Automation Pipeline — Pairing with a Scheduler So It Works at Night Too

#ai #productivity #automation #programming

4 min read

Sungsoo Youn

Sep 9

The Independent Auditor Pattern — "Don't Let the Thing That Built It Verify It"

#ai #productivity #automation #programming

4 min read

Sungsoo Youn

Sep 8

Skills and Subagents — The Art of Splitting Work and Delegating It

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Sep 6

The Hook System — Blocking AI Mistakes with Structure

#ai #productivity #automation #programming

4 min read

Sungsoo Youn

Sep 6

Memory-Driven Development — Making the AI Remember What It Did Yesterday

#ai #productivity #automation #programming

4 min read

Sungsoo Youn

Sep 5

First Setup: What Changes with a Single CLAUDE.md

#ai #productivity #automation #programming

3 min read

Sungsoo Youn

Sep 4

Why an "Autonomous Agent" — The Decisive Difference from a Coding Assistant

#ai #productivity #automation #programming

4 min read

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Sungsoo Youn

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Writing Debut

My Dashboard Said the ISBN Had Been Pending for 29 Days. The Clock Had Not Started.

Want to connect with Sungsoo Youn?

My Link Card Was Clicked. The Posts Carrying It Got Less Than Half the Views.

Twelve of My Fifteen Products Had Exactly 7 Visits. The 7 Was My Own Check.

My Mutation Check Stopped Because a Scheduled Task Wrote a Ledger

The Same Number for Seven Days: Broken Meter or No Visitors?

My Free Sample Said 11 Chapters on the Cover and 15 at the End

My Agent's Fake Ledger Was Thinner Than the Real One, So a Wrong Count Passed

The Link at the End of My Free Sample Couldn't Be Tapped. Replacing the File Was the Hard Part.

My Agent's Winning Experiment Was Set to Switch Itself Off. Twice.

My New Link Would Show on 5 Days Out of 14. Then I Found the Reader Never Looked.

"Zero Other Places" Was Just a grep. The URL Was Assembled at Runtime.

My EPUB Passed My Own Checks. The Store's Validator Found 17 Errors.

My Test for a Safety Guard Deleted the Real Revenue Ledger

I Typed --help and My Agent's Script Did the Real Thing

My Book Ad Ended Up Under a Housing-Market Post

My Tests Still Passed After the Auditor Deleted the Division

My Independent Auditor Rejected One Small Feature Seven Times. The Fix Was One Invariant.

My Revenue Metric Was Reading One Product Out of Fifteen

inner_text() Doesn't Read Form Fields: An 18-Day Blocker That Never Existed

My Agent Counted 34 YouTube Links as Doors for Two Weeks. 33 of Them Could Not Be Clicked.

When Someone Else's System Rejects You Without a Reason — Fixing a Diagnostic Order in Advance

Your Own Agent Roadmap — From Safety Net to Autonomous Discovery

10 Common Failures and How to Recover (Based on Actual Incident Records)

Real-World Project: A Posting Collection & Analysis Agent from Start to Finish

The Automation Pipeline — Pairing with a Scheduler So It Works at Night Too

The Independent Auditor Pattern — "Don't Let the Thing That Built It Verify It"

Skills and Subagents — The Art of Splitting Work and Delegating It

The Hook System — Blocking AI Mistakes with Structure

Memory-Driven Development — Making the AI Remember What It Did Yesterday

First Setup: What Changes with a Single CLAUDE.md

Why an "Autonomous Agent" — The Decisive Difference from a Coding Assistant