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0/60 Wasn't the Model: The Empty Haystack Behind My Two Worst Corpora

0/60 Wasn't the Model: The Empty Haystack Behind My Two Worst Corpora

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Comments 7
7 min read
Cloudflare Tunnel 530 errors: the connector that was healthy and did nothing

Cloudflare Tunnel 530 errors: the connector that was healthy and did nothing

Comments 2
6 min read
Your React Tests Execute the UI. But Do They Verify It?

Your React Tests Execute the UI. But Do They Verify It?

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9 min read
Your AI Code Reviewer Needs a Test Suite Too

Your AI Code Reviewer Needs a Test Suite Too

Comments 1
5 min read
A published invariant is a test you have not written yet

A published invariant is a test you have not written yet

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6 min read
Teaching an Agent Loop to Stop: A 90-Minute Workshop

Teaching an Agent Loop to Stop: A 90-Minute Workshop

Comments 3
5 min read
My bufferbloat test gave an A+ to a line it never loaded

My bufferbloat test gave an A+ to a line it never loaded

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3 min read
When you change an AI agent’s prompt, how do you check that you fixed one problem without creating another?

When you change an AI agent’s prompt, how do you check that you fixed one problem without creating another?

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Comments 4
1 min read
10M Free Tokens and a Free Server? A Myth-Busting Field Manual

10M Free Tokens and a Free Server? A Myth-Busting Field Manual

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4 min read
TradingView Strategy Tester No Data: Trace the Missing Stage

TradingView Strategy Tester No Data: Trace the Missing Stage

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5 min read
The failures that don't throw

The failures that don't throw

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7 min read
Claude Code says it's done. Check the diff, not the paragraph.

Claude Code says it's done. Check the diff, not the paragraph.

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5 min read
I asked an AI agent to test my framework. It found the bugs I couldn't see, then built me a debugger.

I asked an AI agent to test my framework. It found the bugs I couldn't see, then built me a debugger.

Comments 2
3 min read
The Same 11 Prompts, Three Copies, 48 Hours: A Free Model Regression Battery

The Same 11 Prompts, Three Copies, 48 Hours: A Free Model Regression Battery

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4 min read
Memory Pollution in Free AI Benchmarks

Memory Pollution in Free AI Benchmarks

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5 min read
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