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Sam Sun

Full-stack developer passionate about open source and clean code.

Location New York, NY Joined Joined on 
A Free-Tier Trace Loop for Agent Run Regression

A Free-Tier Trace Loop for Agent Run Regression

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4 min read
Diff the Traces, Not the Code: A Bisection Loop for Agent Runs

Diff the Traces, Not the Code: A Bisection Loop for Agent Runs

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4 min read
Turn Agent Tool Calls Into Run Receipts

Turn Agent Tool Calls Into Run Receipts

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4 min read
Agent Runs Are Black Boxes: A Trace-First Debug Loop

Agent Runs Are Black Boxes: A Trace-First Debug Loop

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4 min read
Free Model Access and Free Hosting: A Decision Guide for Agent Workloads

Free Model Access and Free Hosting: A Decision Guide for Agent Workloads

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3 min read
Free Endpoints Are a Contract, Not a Gift: A Fit Test for Agent Workloads

Free Endpoints Are a Contract, Not a Gift: A Fit Test for Agent Workloads

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5 min read
Your Retry Loop Is a Token Incinerator: A Cascade Router for Mixed-Tier Endpoints

Your Retry Loop Is a Token Incinerator: A Cascade Router for Mixed-Tier Endpoints

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5 min read
Free vs Self-Hosted Models: A Break-Even Framework for Agent Workloads

Free vs Self-Hosted Models: A Break-Even Framework for Agent Workloads

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5 min read
A Cost-Per-Token Benchmark Is Not Enough: A Reproducible Harness for Free and Cheap Model Endpoints

A Cost-Per-Token Benchmark Is Not Enough: A Reproducible Harness for Free and Cheap Model Endpoints

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4 min read
A Preflight Harness for Tool-Using Coding Agents

A Preflight Harness for Tool-Using Coding Agents

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5 min read
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