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I Tested Three Claude Reasoning Effort Policies on 20 of My Own Bug Fixes

I Tested Three Claude Reasoning Effort Policies on 20 of My Own Bug Fixes

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6 min read
Build Buddy, after the week: I tested my own fix on new samples

Build Buddy, after the week: I tested my own fix on new samples

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3 min read
Blocking an AI agent's shortcuts with tools: what verifying code comments taught me about steering and MCP

Blocking an AI agent's shortcuts with tools: what verifying code comments taught me about steering and MCP

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24 min read
All my tests were green. The first real install found five blocking bugs.

All my tests were green. The first real install found five blocking bugs.

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5 min read
My CI perf budget failed twice on changes that couldn't be slower

My CI perf budget failed twice on changes that couldn't be slower

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5 min read
My LLM judge failed "Paris." as the capital of France. The rubric was grading the wrong thing.

My LLM judge failed "Paris." as the capital of France. The rubric was grading the wrong thing.

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6 min read
A 12-case acceptance test before changing a CRM's SMS provider

A 12-case acceptance test before changing a CRM's SMS provider

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3 min read
I gave AI agents an empty API response. They made up support tickets.

I gave AI agents an empty API response. They made up support tickets.

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4 min read
How to Fade In and Out a Video With FFmpeg (Anchor the Fade to the Last Frame, Fade the Audio Too, and Test It With pytest)

How to Fade In and Out a Video With FFmpeg (Anchor the Fade to the Last Frame, Fade the Audio Too, and Test It With pytest)

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8 min read
My ML Feature Used the Wrong Unit. The Threshold Was 400x Too Large.

My ML Feature Used the Wrong Unit. The Threshold Was 400x Too Large.

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3 min read
Our first AI coding agent scorecard was wrong. The agents were not the problem.

Our first AI coding agent scorecard was wrong. The agents were not the problem.

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4 min read
One scorer for seven question types: all-or-nothing, and the empty-key bug it is built to avoid

One scorer for seven question types: all-or-nothing, and the empty-key bug it is built to avoid

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4 min read
Reduced-Motion Testing: Keep Your Public SaaS Demo Understandable

Reduced-Motion Testing: Keep Your Public SaaS Demo Understandable

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6 min read
Running Agent Skills Code With OpenSandbox

Running Agent Skills Code With OpenSandbox

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4 min read
What Playwright's toHaveScreenshot() default lets through: threshold, maxDiffPixels and ratio tested on 11 changes

What Playwright's toHaveScreenshot() default lets through: threshold, maxDiffPixels and ratio tested on 11 changes

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8 min read
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