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Charlie Xu

Exploring the intersection of AI and web development.

Location San Francisco, CA Joined Joined on 
A Noise Budget for Automated PR Reviews: Free Models, a Free Server, and a Protocol That Keeps Humans Listening

A Noise Budget for Automated PR Reviews: Free Models, a Free Server, and a Protocol That Keeps Humans Listening

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5 min read
A Mutation-Based Regression Test for Your AI Code Reviewer

A Mutation-Based Regression Test for Your AI Code Reviewer

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4 min read
When AI Remembers Too Much: A Differential Testing Safety Net

When AI Remembers Too Much: A Differential Testing Safety Net

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6 min read
A PR Review Bot That Costs Zero: Free Models on a Free Server

A PR Review Bot That Costs Zero: Free Models on a Free Server

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7 min read
A Bootcamp Lab for Stress-Testing AI Coding Models on a $0 Budget

A Bootcamp Lab for Stress-Testing AI Coding Models on a $0 Budget

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5 min read
Free vs. Paid AI Infrastructure: A Decision Framework That Survives Production

Free vs. Paid AI Infrastructure: A Decision Framework That Survives Production

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5 min read
Free AI Infrastructure Isn't a Compromise. It's a Constraint Class.

Free AI Infrastructure Isn't a Compromise. It's a Constraint Class.

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5 min read
Your PRs Deserve a Second Reviewer That Costs Nothing: A Webhook Architecture

Your PRs Deserve a Second Reviewer That Costs Nothing: A Webhook Architecture

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6 min read
Zero-Budget AI Coding Model Evaluation: A Sandbox-First Workflow

Zero-Budget AI Coding Model Evaluation: A Sandbox-First Workflow

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6 min read
A Zero-Trust Red-Team Loop for a Trending Model Launch (MiniMax H3 Edition)

A Zero-Trust Red-Team Loop for a Trending Model Launch (MiniMax H3 Edition)

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4 min read
A Sandbox-First Workflow for Evaluating AI Coding Models on a Zero Budget

A Sandbox-First Workflow for Evaluating AI Coding Models on a Zero Budget

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5 min read
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