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#debugging

Troubleshooting code issues

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Your validator must measure what you ship, not what you loaded

Your validator must measure what you ship, not what you loaded

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7 min read
The CSP that killed our own form (a production-only Next.js bug)

The CSP that killed our own form (a production-only Next.js bug)

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5 min read
JWT Debugging: 5 Tasks You'll Hit Daily (and How to Handle Them Without a Library)

JWT Debugging: 5 Tasks You'll Hit Daily (and How to Handle Them Without a Library)

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3 min read
Bluesky app passwords have two scopes: diagnosing "Bad token scope" on the DM endpoints

Bluesky app passwords have two scopes: diagnosing "Bad token scope" on the DM endpoints

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3 min read
Node.js Memory Leaks and Profiling: Finding What Holds Memory

Node.js Memory Leaks and Profiling: Finding What Holds Memory

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5 min read
My Publish Script Has an ERROR Convention for Every Failure Path Except the One Parsing Its Own Input

My Publish Script Has an ERROR Convention for Every Failure Path Except the One Parsing Its Own Input

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4 min read
[LINE Bot Debugging] A 403 Error and Three Underlying Issues: npm Version Drift, Node.js Requirements, and Cloudflare Verificati

[LINE Bot Debugging] A 403 Error and Three Underlying Issues: npm Version Drift, Node.js Requirements, and Cloudflare Verificati

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12 min read
What I Learned Debugging Osintgram on a Linux VM with HikerAPI

What I Learned Debugging Osintgram on a Linux VM with HikerAPI

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3 min read
A perfect separation in your data is a bug in your instrument

A perfect separation in your data is a bug in your instrument

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6 min read
SQLite FTS5 quietly ANDs your search terms

SQLite FTS5 quietly ANDs your search terms

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4 min read
SGLang outputs endless repetition on NVFP4 models: the FP8 lm_head bug

SGLang outputs endless repetition on NVFP4 models: the FP8 lm_head bug

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3 min read
Your retired button is still mounted, still handling clicks

Your retired button is still mounted, still handling clicks

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4 min read
Your isolated test lab isn't isolated: 3 rows, 8 daemons

Your isolated test lab isn't isolated: 3 rows, 8 daemons

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5 min read
Why My LLM Agent Fabricated Numbers From Stale Context

Why My LLM Agent Fabricated Numbers From Stale Context

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6 min read
cached_tokens is 0 because your system prompt isn't stable

cached_tokens is 0 because your system prompt isn't stable

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3 min read
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