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Drew Breunig

Drew Breunig on agentic coding in practice: harness design, prompt debt, and how the AI ecosystem is layering itself.

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Who Taught the Models to Do That?
August 31st, 2026•dbreunig.com
Fable & The End of the Free Lunch
August 23rd, 2026•dbreunig.com
Harnesses are Situated Agents
August 14th, 2026•dbreunig.com
Manage Your Agent’s Loadout with Dr. Skill
July 24th, 2026•dbreunig.com
Understanding the Dynamics of the AI Ecosystem with Pace Layers
July 3rd, 2026•dbreunig.com
The Problem is Prompt Debt
June 22nd, 2026•dbreunig.com
What Do Humans Need From Docs?
May 31st, 2026•dbreunig.com
The Cost of Overfitting the Harness
May 10th, 2026•dbreunig.com
10 Lessons for Agentic Coding
May 5th, 2026•dbreunig.com
Cybersecurity Looks Like Proof of Work Now
April 14th, 2026•dbreunig.com
How Claude Code Builds a System Prompt
April 4th, 2026•dbreunig.com
The 2nd Phase of Agentic Development
April 1st, 2026•dbreunig.com
The Cathedral, the Bazaar, and the Winchester Mystery House
March 27th, 2026•dbreunig.com
Learnings from a No-Code Library: Keeping the Spec Driven Development Triangle in Sync
March 4th, 2026•dbreunig.com
We’re Talking About Terms of Use, But the Issue is Embedded Judgment
March 1st, 2026•dbreunig.com
Two Beliefs About Coding Agents
February 25th, 2026•dbreunig.com
Why is Claude an Electron App?
February 21st, 2026•dbreunig.com
How System Prompts Define Agent Behavior
February 11th, 2026•dbreunig.com
The Potential of RLMs
February 9th, 2026•dbreunig.com
The Rise of Spec Driven Development
February 6th, 2026•dbreunig.com