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Why your vi.mock in Vitest silently does nothing

Why your vi.mock in Vitest silently does nothing

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1 min read
Testing Next.js 15 Apps — The Setup I Actually Use

Testing Next.js 15 Apps — The Setup I Actually Use

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5 min read
Building Deterministic RL Environments for Cloud Infrastructure Evaluation: What Actually Transfers From Production Engineering

Building Deterministic RL Environments for Cloud Infrastructure Evaluation: What Actually Transfers From Production Engineering

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5 min read
Break Your Agent on Purpose: A Failure-Injection Sandbox for Tool Boundaries

Break Your Agent on Purpose: A Failure-Injection Sandbox for Tool Boundaries

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5 min read
YAML Test Cases in Git: What r/QualityAssurance Actually Said

YAML Test Cases in Git: What r/QualityAssurance Actually Said

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4 min read
The AI said it verified the code. It hadn't.

The AI said it verified the code. It hadn't.

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3 min read
Building ReproSpec: Portable Evidence Bundles and Offline Replay for Node.js

Building ReproSpec: Portable Evidence Bundles and Offline Replay for Node.js

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4 min read
Your eval suite passes. I built the tool that checks whether it checks anything.

Your eval suite passes. I built the tool that checks whether it checks anything.

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2 min read
One New State Means a Projection Audit

One New State Means a Projection Audit

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4 min read
My first project in python

My first project in python

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1 min read
The Hardest Bug to Find Was a False Positive.

The Hardest Bug to Find Was a False Positive.

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5 min read
A Breaker Can Be Independent. The Machine Still Wasn't.

A Breaker Can Be Independent. The Machine Still Wasn't.

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3 min read
I told one AI to demolish the handoff prompt I wrote for another AI. It found a test that passes even when it's empty

I told one AI to demolish the handoff prompt I wrote for another AI. It found a test that passes even when it's empty

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3 min read
Turn Chatbot Misunderstandings Into Grammar Regression Tests

Turn Chatbot Misunderstandings Into Grammar Regression Tests

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8 min read
Two h1 tags on 500 pages: the bug that lives between two correct halves

Two h1 tags on 500 pages: the bug that lives between two correct halves

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3 min read
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