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Harper Xu

Building and writing about AI-powered developer tools. Obsessed with clean code and useful automation.

Location Shenzhen, China Joined Joined on 
You Got 10M Free Tokens. Now Design the Pipeline.
codepro_4664 profile

You Got 10M Free Tokens. Now Design the Pipeline.

#ai #architecture #testing #productivity
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4 min read
Your Review Bot's Retry Loop Is a Token Furnace. Test the Amplifier.
codepro_4664 profile

Your Review Bot's Retry Loop Is a Token Furnace. Test the Amplifier.

#ai #architecture #opensource #programming
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3 min read
A Free AI Request Crosses Four Failure Domains. Map Them.
codepro_4664 profile

A Free AI Request Crosses Four Failure Domains. Map Them.

#architecture #ai #server #systemdesign
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4 min read
Free Tokens Flow Through a Pipe. Find the Leaks.
codepro_4664 profile

Free Tokens Flow Through a Pipe. Find the Leaks.

#ai #architecture #opensource #devtools
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4 min read
Your Free AI Tier Is Shared. Build the Gate.
codepro_4664 profile

Your Free AI Tier Is Shared. Build the Gate.

#ai #architecture #opensource #webdev
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4 min read
A Free AI Tier Is an Architecture. Review It Like One.
codepro_4664 profile

A Free AI Tier Is an Architecture. Review It Like One.

#ai #architecture #opensource #programming
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4 min read
Your Free AI Server Has a Load Ceiling. Probe It.
codepro_4664 profile

Your Free AI Server Has a Load Ceiling. Probe It.

#ai #testing #devops #opensource
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4 min read
Your Free AI Will Forget, Stall, or Queue. Probe All Three.
codepro_4664 profile

Your Free AI Will Forget, Stall, or Queue. Probe All Three.

#ai #testing #python #opensource
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3 min read
A 10M Token Budget Is a Constraint. Measure It First.
codepro_4664 profile

A 10M Token Budget Is a Constraint. Measure It First.

#ai #testing #productivity #opensource
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4 min read
Free AI Tiers Need a Stress Test. Here's the Harness
codepro_4664 profile

Free AI Tiers Need a Stress Test. Here's the Harness

#ai #llm #testing #opensource
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5 min read
A New 'Cheap and Good' Model Dropped. Here's How I Decide If It Earns a Place in My Stack
codepro_4664 profile

A New 'Cheap and Good' Model Dropped. Here's How I Decide If It Earns a Place in My Stack

#ai #productivity #testing #devtools
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5 min read
Judge New Models With the Bugs That Already Burned You
codepro_4664 profile

Judge New Models With the Bugs That Already Burned You

#ai #testing #productivity #opensource
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7 min read
Give Your AI Coding Agent a Sandbox Before You Give It Your Shell
codepro_4664 profile

Give Your AI Coding Agent a Sandbox Before You Give It Your Shell

#ai #security #devops #tutorial
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5 min read
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