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When Claude Acts Like a Clod: Catching AI Fabrications: A QA Engineer’s Field Notes

When Claude Acts Like a Clod: Catching AI Fabrications: A QA Engineer’s Field Notes

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3 min read
Why Most QA Engineers Can't Practice Their Core Skill — and How Mutation Testing Changes That

Why Most QA Engineers Can't Practice Their Core Skill — and How Mutation Testing Changes That

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5 min read
Extracting Authentication to a Microservice

Extracting Authentication to a Microservice

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7 min read
[Side B] Pursuing OSS Quality Assurance with AI: Achieving 369 Tests, 97% Coverage, and GIL-Free Compatibility

[Side B] Pursuing OSS Quality Assurance with AI: Achieving 369 Tests, 97% Coverage, and GIL-Free Compatibility

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6 min read
🛑 Stop Testing Your Code and Ignoring Your Database (Catching N+1 in Pytest)

🛑 Stop Testing Your Code and Ignoring Your Database (Catching N+1 in Pytest)

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2 min read
Every Stripe test card you'll ever need (plus fake checkout data for Shopify, WooCommerce & Magento)

Every Stripe test card you'll ever need (plus fake checkout data for Shopify, WooCommerce & Magento)

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2 min read
Building Confidence with Testcontainers

Building Confidence with Testcontainers

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5 min read
Cypress Component Isolation Issues

Cypress Component Isolation Issues

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2 min read
[Side A] Completely Defending Python from OOM Kills: The BytesIO Trap and D-MemFS 'Hard Quota' Design Philosophy

[Side A] Completely Defending Python from OOM Kills: The BytesIO Trap and D-MemFS 'Hard Quota' Design Philosophy

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8 min read
Why AI Agent Outputs Need Adversarial Review (and How to Add It in One API Call)

Why AI Agent Outputs Need Adversarial Review (and How to Add It in One API Call)

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4 min read
Designing a Domain Model That Actually Models the Domain

Designing a Domain Model That Actually Models the Domain

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5 min read
I Broke My Multi-Agent Pipeline on Purpose. All 3 Failures Were Silent.

I Broke My Multi-Agent Pipeline on Purpose. All 3 Failures Were Silent.

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5 min read
My Python tests passed. Production still broke.

My Python tests passed. Production still broke.

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1 min read
Testing MCP Servers: A Practical Guide for Developers

Testing MCP Servers: A Practical Guide for Developers

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1 min read
Why I Stopped Mocking 2FA in Tests (And What I Do Instead)

Why I Stopped Mocking 2FA in Tests (And What I Do Instead)

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7 min read
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