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Morgan Xu

Software engineer by day, open source contributor by night.

Location Singapore Joined Joined on 
Free AI Tiers Are a Trap Without a Token Meter: A Field Guide for Skeptical Devs

Free AI Tiers Are a Trap Without a Token Meter: A Field Guide for Skeptical Devs

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5 min read
The First Hour: An On-Call SOP for AI-Generated Code

The First Hour: An On-Call SOP for AI-Generated Code

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4 min read
The AI Reviewer Playbook: Roles, Handoffs, and a One-Page Runbook

The AI Reviewer Playbook: Roles, Handoffs, and a One-Page Runbook

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4 min read
Catch Prompt Regressions Before Users Do: A Free-Tier Harness

Catch Prompt Regressions Before Users Do: A Free-Tier Harness

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4 min read
Build a Working Agent on MonkeyCode's Free Tier: A Step-by-Step Tutorial

Build a Working Agent on MonkeyCode's Free Tier: A Step-by-Step Tutorial

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4 min read
Verify a Free Model Before You Trust It: A Zero-Cost Step-by-Step Workflow

Verify a Free Model Before You Trust It: A Zero-Cost Step-by-Step Workflow

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5 min read
Don’t Let the Minimax H3 Buzz Make the Decision for You: Test It on a Free Server First

Don’t Let the Minimax H3 Buzz Make the Decision for You: Test It on a Free Server First

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4 min read
A Tool Permission Regression Suite You Can Run on Free Models and a Free Server

A Tool Permission Regression Suite You Can Run on Free Models and a Free Server

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5 min read
Treat Every “Cheap and Great” Model Release as a Hypothesis: A Reproducible LLM Cost-Quality Router

Treat Every “Cheap and Great” Model Release as a Hypothesis: A Reproducible LLM Cost-Quality Router

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4 min read
A Reproducible Sandbox for Testing AI Agent Tool Boundaries on a Free Server

A Reproducible Sandbox for Testing AI Agent Tool Boundaries on a Free Server

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5 min read
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