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Yusuke Shiki profile picture

Yusuke Shiki

Frontend engineer building reliable workflows and verification tools for AI coding agents. TypeScript / React / Python; previously Ruby on Rails.

Location Tokyo, Japan Joined Joined on  Personal website https://www.npmjs.com/~shiki-yusuke github website
A YAML Comment Truncated an AI Coding Success Criterion — and the Gate Still Passed
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A YAML Comment Truncated an AI Coding Success Criterion — and the Gate Still Passed

#ai #testing #programming #agents
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7 min read
Tracking Codex Astra costs took more than updating a price table
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Tracking Codex Astra costs took more than updating a price table

#ai #python #opensource #codex
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5 min read
Before Asking an AI Coding Agent to Fix a Bug, Verify the Bug Exists
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Before Asking an AI Coding Agent to Fix a Bug, Verify the Bug Exists

#ai #testing #opensource #programming
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5 min read
A Real Deployment Exposed Two Contract Defects Before I Froze the Contract
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A Real Deployment Exposed Two Contract Defects Before I Froze the Contract

#devops #githubactions #opensource #testing
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7 min read
I Could Measure Claude and Codex Usage. I Still Couldn't Honestly Assign It to a Task.
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I Could Measure Claude and Codex Usage. I Still Couldn't Honestly Assign It to a Task.

#claudecode #codex #ai #opensource
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4 min read
Writing evidence-linked docs exposed two missing regression tests
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Writing evidence-linked docs exposed two missing regression tests

#opensource #python #testing #documentation
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8 min read
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