All Articles
Claude Code × uv: Blazing-Fast Python Environment Setup — 10x Faster Than pip in Practice
Learn how to combine uv — Astral's Rust-powered Python package manager — with Claude Code for dramatically faster environment setup. Covers project initialization, dependency management automation, CI integration, and migrating from pip.
When Claude Code Hits `index.lock` in VMs and CI: Three Workarounds That Actually Stick
When Claude Code freezes on `fatal: Unable to create '.git/index.lock'` inside a VM, container, or CI sandbox, here are three battle-tested workarounds — pick the one that matches the layer of failure you're actually hitting.
Editing Multiple Repositories at Once With Claude Code --add-dir
How to use Claude Code's --add-dir flag to edit multiple repositories in a single session. Practical patterns for cross-repo API changes, shared utility refactoring, and keeping docs in sync with code.
Running Claude Code Without Breakage — A Failure-First Production Workflow with Plan Mode, Hooks, Rewind, and Subagents
If Claude Code has ever landed a broken commit on your main branch, this guide shows how to combine Plan Mode, Hooks, Rewind, and Subagents into a single failure-first workflow that keeps your repository safe without slowing you down.
Why Your Custom MCP Server's Logs Disappear — Writing to stderr in Claude Code
If you're building your own MCP server and your console.log lines never appear — while Claude Code silently reports the tool as unresponsive — you're probably polluting stdio. Here's how to spot it and rewrite your logs to keep the protocol intact.
Diagnosing Claude Code Subagents That Stall or Never Return
Diagnostic flow for Claude Code subagents that freeze, return silently, or produce the wrong output shape — classified by symptom with runnable examples.
Claude Code's TodoList Quality Comes Down to Task Granularity — Patterns That Actually Worked
The TodoList tool in Claude Code can backfire when used carelessly. Three field-tested patterns — task granularity, verification steps, and update timing — that shift the output from 'looks organized' to 'actually delivered'.
The Claude Code Error Handbook — Auth, Billing, Stalls, Tools & MCP, Diagnosed by Symptom
A field-tested reference for 40+ Claude Code error patterns, organized by visible symptom: authentication, billing, response stalls, tool failures, MCP connectivity, and hook issues. Each entry tells you where to look and what to change.
Claude Code Environment Variables — The Complete Practical Reference
A practitioner-focused reference for every Claude Code environment variable that actually matters. Covers API connectivity, model selection, PowerShell tool quirks, logging, timeouts, security flags, and real-world templates for solo, team, and CI/CD setups.
Debugging Claude Code Hooks in Production — Where to Start When Logs Are Missing
Your Claude Code hooks work locally but go silent in production. Here is the three-layer observability pattern I use on real projects, plus a 60-second minimal reproduction recipe for isolating failures.
Fixed-Bid Pricing Engineering for Freelancers in the Claude Code Era
How to price fixed-bid engagements in the Claude Code era without bleeding profit — a three-layer cost model, risk buffers, and contract clauses that protect freelancers when generative AI compresses hours.
Claude Keeps Saying 'Response Incomplete' — A Layered Troubleshooting Guide
Diagnose why Claude or Claude Code freezes with a 'Response incomplete' or 'Try stopping' message. Walk through the four layers where generation can stall and recover the session without losing context.