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Sungsoo Youn

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

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

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

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3 min read

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

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

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

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

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4 min read
Your Own Agent Roadmap — From Safety Net to Autonomous Discovery

Your Own Agent Roadmap — From Safety Net to Autonomous Discovery

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

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

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

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

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

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

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

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

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3 min read
Skills and Subagents — The Art of Splitting Work and Delegating It

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

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3 min read
The Hook System — Blocking AI Mistakes with Structure

The Hook System — Blocking AI Mistakes with Structure

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

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

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4 min read
First Setup: What Changes with a Single CLAUDE.md

First Setup: What Changes with a Single CLAUDE.md

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

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

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4 min read
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