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Brian Jin

Open-source maintainer building Judgment Pack, a testable specification and runtime for AI-agent decisions. Former enterprise data and software architect.

Location Toronto, Ontario, Canada Joined Joined on  Personal website https://judgmentpack.org/ github website

Work

Maintainer, Judgment Pack Specification

I stopped printing the thresholds in the policy. The AI wrote the same tests anyway.

I stopped printing the thresholds in the policy. The AI wrote the same tests anyway.

Comments
9 min read

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When Agents Can Act on Real Devices, Governance Moves Beyond the Prompt

When Agents Can Act on Real Devices, Governance Moves Beyond the Prompt

Comments 4
6 min read
The Receipt Was Valid. The Policy Was Retired.

The Receipt Was Valid. The Policy Was Retired.

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Comments 2
9 min read
Five Adversarial Reviews Told Me My Study Was Measuring a Fiction

Five Adversarial Reviews Told Me My Study Was Measuring a Fiction

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Comments 1
11 min read
When Agents Can Run Anywhere, Where Should Organizational Judgment Live?

When Agents Can Run Anywhere, Where Should Organizational Judgment Live?

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Comments 2
5 min read
The Receipt Was Cryptographically Valid. The Action Didn't Match the Judgment.

The Receipt Was Cryptographically Valid. The Action Didn't Match the Judgment.

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Comments 1
11 min read
I Broke My AI Decision System 20 Ways to See Which Layer Would Catch What

I Broke My AI Decision System 20 Ways to See Which Layer Would Catch What

Comments
8 min read
Where Does Judgment End and Runtime Policy Begin?

Where Does Judgment End and Runtime Policy Begin?

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Comments 1
4 min read
The Agent Stack Is Filling In. The Judgment Layer Is Still an Open Problem

The Agent Stack Is Filling In. The Judgment Layer Is Still an Open Problem

Comments
5 min read
I Asked an AI to Author the Same Policy Tests 50 Times. It Hit Every Boundary in 49 Valid Runs.

I Asked an AI to Author the Same Policy Tests 50 Times. It Hit Every Boundary in 49 Valid Runs.

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Comments 7
10 min read
What I Learned Trying to Make AI-Agent Decisions Testable

What I Learned Trying to Make AI-Agent Decisions Testable

Comments 7
6 min read
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