Claude Code Doesn't Recognize nvm/pyenv/asdf — Shell Initialization and 4 Fixes
Fix 'node: command not found' and Python version mismatches in Claude Code when using nvm, pyenv, or asdf. Learn why shell initialization is skipped and how to solve it for good.
Claude Payment Errors and Card Declines: A Complete Troubleshooting Guide
Credit card declined when subscribing to Claude Pro? This guide covers all seven causes — 3D Secure failures, international payment blocks, VPN interference, prepaid card issues — with step-by-step fixes for each.
Claude Code Bash Tool Hangs on `npm run dev` and `docker run` — How to Handle Long-Running Processes
Claude Code's Bash tool freezes when running npm run dev, docker run, or other long-running processes. Learn background execution patterns, timeout strategies, and process management best practices.
Accidentally Committed API Keys to Git — Emergency Response with Claude Code
Step-by-step emergency guide for when you accidentally commit .env API keys to git. Covers immediate key rotation, removing secrets from git history with Claude Code, and preventing it from happening again.
Claude Code MCP Server Won't Start — How to Fix "spawn npx ENOENT" and PATH Issues
You configured an MCP server in Claude Code's settings.json, but it never starts — just "spawn npx ENOENT" or "spawn uvx ENOENT" errors. The culprit is a PATH mismatch between your shell and Claude Code's spawning environment. Here's how to diagnose and fix it.
When Claude Code's Read Tool Silently Truncates Large Files — offset/limit Patterns and When to Reach for Bash
Claude Code's Read tool stops at 2000 lines without an error. Here are the signs of silent truncation, a preflight script that decides how to read a file, and the sentinel-line trick that proves you reached the end.
Why Claude Code's Glob and Grep Return Zero Results
When Claude Code's Glob or Grep tool returns no matches even though the files clearly exist, the cause is almost always one of four things. Here's how to triage.
Claude in Chrome Not Working? A Practical Troubleshooting Guide
Buttons that do nothing, pages that never load, tasks that report success but change nothing. Symptom-by-symptom fixes, plus the 42-run log where adding waits and verification steps moved completion from 62% to 95%.
Claude Keeps Making the Same Mistake — Why Corrections Don't Stick and How to Fix It
Why Claude repeats mistakes even after correction, and how to make your instructions stick permanently using Projects, custom prompts, and smarter conversation design.
Claude Code MCP Connection Troubleshooting: A Complete Diagnostic Guide
A systematic approach to diagnosing MCP server failures in Claude Code—from config file validation to transport-layer debugging, crash recovery, and multi-server production patterns.
5 Common Claude Code Errors and How to Fix Them
A practical guide to the five most common Claude Code errors—Permission denied, rate limits, MCP connection failures, context overflow, and bash failures—with real causes and fixes for each.
MCP Server Suddenly Stopped Working in Claude Code: A 5-Step Diagnosis Guide
Five steps for diagnosing a broken MCP server: check /mcp status, read stderr logs, validate JSON config, verify auth tokens, and restart Claude Code cleanly.