A Runaway Build Dies Very Differently Under cgroup Than Under ulimit
Claude Code v2.1.233 added opt-in memory cgroup support for Bash tool commands on Linux. Capping virtual address space with ulimit -v and capping physical memory with a cgroup produce completely different failures — and only one of them lets your Node build start at all.
Claude Credit Card Declined: How to Fix Payment and Billing Errors
Getting your credit card declined when subscribing to Claude Pro or Max? This guide covers every common cause—international transaction blocks, billing address mismatches, Stripe restrictions—and gives you clear steps to fix it.
Claude Card Declined: A Complete Troubleshooting Guide for Pro, Max, and API Users
When Claude tells you 'Your card was declined,' the cause is rarely obvious from the error text alone. This guide separates the three layers where a decline actually happens — your issuing bank, Stripe's fraud engine, and Anthropic's account state — and walks you through fixes plus fallback payment methods that almost always get the charge through.
My Claude Code Hooks Stopped Firing After an Update — the Hyphenated Matcher Exact-Match Change in v2.1.195
In Claude Code v2.1.195, hook matchers containing a hyphen switched from partial match to exact match, silently disabling an existing PreToolUse hook. Here is how I isolated the cause and how to write matchers that won't break.
My Unattended Task Was Overwriting the Previous Day's Log — the Container's date Was Returning UTC
A Cowork scheduled task that wrote date-stamped logs was silently overwriting the prior day's file. The culprit was the container's date returning UTC. Here is how I isolated it and the permanent fix: pin the timezone, append instead of overwrite, and detect the failure.
When a Broken settings.json Stops Claude Code From Starting — Safe Mode and How to Split Your Config
How to find which config layer is broken when a settings.json syntax error stops Claude Code from starting, recover in minutes, and structure your settings so an automated pipeline can't quietly break itself.
It Says '500' in the Browser but curl Returns 200 — When a Next.js Error Boundary Misreads a ChunkLoadError
A production Next.js article page shows '500 Internal Server Error' in the browser, yet curl returns 200. The culprit was not the server but a ChunkLoadError surfacing through error.tsx. Here is the diagnosis and a fix with built-in auto-reload.
When git add -A Sweeps Up .bak Backups — The Quiet Trap of In-Place Fix Scripts
How .bak backups left by sed -i and homegrown --fix scripts get silently swept into production by git add -A, why it is so easy to miss, and how scoped adds and .gitignore close the gap for good.
When Yesterday's Article Bleeds Into Today's — The Stale Fixed-Name Temp File Trap
In a Claude Code automation pipeline, a fixed-name temp file kept stale content from the previous run and leaked old body text into a completely different article. Here is why the write fails silently, and how unique names plus a post-write grep check prevent it.
When git push Says Success but Nothing Lands — the Silent commit Failure in Claude Code
git push prints Everything up-to-date and exits zero, yet your changes never reach the remote. Here is why commit silently fails on a fresh sandbox clone, and how to verify a real push with SHA comparison.
Fixing Claude Code's 'Credit balance is too low' Error
You launch Claude Code and it immediately stops with 'Credit balance is too low' — even though you have an active subscription. The error looks like a money problem, but it is almost always a mismatch in which auth path is billing you. Here is how to tell them apart and fix it: switching auth routes, topping up credits, and setting auto-reload.
Fixing 403 Write Access to Repository Not Granted When Pushing from Claude Code
When Claude Code automation pushes to GitHub and hits a 403 'Write access to repository not granted', the cause usually lies in how fine-grained PATs differ from classic ones. Here's how to diagnose repository access, Contents permissions, and org approval.