#Developer Tools

The tooling around the code: building an MCP server in TypeScript, how Claude Code and Cursor load project instructions, and what Next.js 16 Turbopack changes for webpack configs and Google Fonts behind a proxy.

Articles with this tag

Codex Auto Compact: When It Triggers, and How to Control It
Codex compacts a long conversation automatically at 90% of the model's context window: 244,800 tokens on the 272K models in Codex 0.166.0. Where that number comes from, what model_auto_compact_token_limit can and can't change, why there's no off switch, how to compact between turns instead of mid-task, and what to do when compaction loops or loses your task.How-toAI EngineeringNovember 6, 202616 min read
OpenCode's 'Free Tier Can Only Be Used From Within OpenCode' Error, Even in OpenCode: What Triggers It
OpenCode's free models refuse with 'free tier can only be used from within OpenCode' while you're using OpenCode. I tested which configs trigger it: a denied read permission does, a denied bash doesn't. Plus the newer 'detected abusive traffic from this IP address' block, which is your network, not your config.TroubleshootingAI EngineeringOctober 21, 202613 min read
Codex Crashpad 'pending' Eating Your Mac's Disk? Check, Clean and Stop It
Codex Desktop can write a crash dump every second into Crashpad/pending, and people have lost 59, 168, 323 and even 511 GB to it. Why the loop happens, how to check both folders, how to clean them safely, and what actually stops it.TroubleshootingAI EngineeringOctober 18, 202611 min read
[WinError 10013] 'Access a Socket in a Way Forbidden': Windows Reserved the Port
Your port is free, netstat shows nothing on it, and Windows still refuses it with 'forbidden by its access permissions'. I reproduced it in Node and Python: the port sits in a range Windows has reserved, and here's how to see the list and get the port back.TroubleshootingWeb DevelopmentOctober 10, 202614 min read
Corporate Proxy SSL Errors in npm, pip, git and curl: What Each Tool Actually Trusts
I put npm, pip, Python, git and curl behind an intercepting proxy and tested every certificate setting. Half the usual fixes are silently ignored, and half the ones that work break your tools the moment you leave the office.TroubleshootingWeb DevelopmentOctober 8, 202613 min read
Next.js 'Failed to Fetch' Google Fonts Behind a Corporate Proxy: I Tested Every Fix
NODE_EXTRA_CA_CERTS fixes it under webpack and does nothing under Turbopack. I ran nine builds through an intercepting proxy on Next.js 16.1 and 16.3 — the fix that works depends on your version.TroubleshootingWeb DevelopmentOctober 2, 202611 min read
Next.js 16 Turbopack webpack Config Error: Don't Silence It
Next.js 16 fails the build when it finds a webpack config, and the error suggests turbopack: {}. I tested it. The build passes — and the service worker silently disappears.TroubleshootingWeb DevelopmentSeptember 25, 202610 min read
Claude Code vs Cursor: AGENTS.md, CLAUDE.md and Cursor Rules Compared
Claude Code now reads AGENTS.md, but only when there is no CLAUDE.md, and a personal CLAUDE.local.md quietly turns that off. How both tools load AGENTS.md, CLAUDE.md and Cursor rules, and how to keep one repo working in both.ComparisonAI EngineeringAugust 9, 202612 min read
Build a Custom MCP Server in TypeScript and Add It to Claude Code (Tested)
A custom MCP server, built and tested on the current SDK: @modelcontextprotocol/server 2.4.0 and the 2026-07-28 protocol. Register a tool with a Zod schema, serve it with serveStdio, test it with the official client or the MCP Inspector, add it to Claude Code with claude mcp add, and see what really happens when your server writes to stdout.How-toAI EngineeringAugust 9, 202620 min read

#Developer Tools

Articles with this tag

Codex Auto Compact: When It Triggers, and How to Control It

OpenCode's 'Free Tier Can Only Be Used From Within OpenCode' Error, Even in OpenCode: What Triggers It

Codex Crashpad 'pending' Eating Your Mac's Disk? Check, Clean and Stop It

[WinError 10013] 'Access a Socket in a Way Forbidden': Windows Reserved the Port

Corporate Proxy SSL Errors in npm, pip, git and curl: What Each Tool Actually Trusts

Next.js 'Failed to Fetch' Google Fonts Behind a Corporate Proxy: I Tested Every Fix

Next.js 16 Turbopack webpack Config Error: Don't Silence It

Claude Code vs Cursor: AGENTS.md, CLAUDE.md and Cursor Rules Compared

Build a Custom MCP Server in TypeScript and Add It to Claude Code (Tested)

More topics

#Developer Tools

Articles with this tag

Codex Auto Compact: When It Triggers, and How to Control It

OpenCode's 'Free Tier Can Only Be Used From Within OpenCode' Error, Even in OpenCode: What Triggers It

Codex Crashpad 'pending' Eating Your Mac's Disk? Check, Clean and Stop It

[WinError 10013] 'Access a Socket in a Way Forbidden': Windows Reserved the Port

Corporate Proxy SSL Errors in npm, pip, git and curl: What Each Tool Actually Trusts

Next.js 'Failed to Fetch' Google Fonts Behind a Corporate Proxy: I Tested Every Fix

Next.js 16 Turbopack webpack Config Error: Don't Silence It

Claude Code vs Cursor: AGENTS.md, CLAUDE.md and Cursor Rules Compared

Build a Custom MCP Server in TypeScript and Add It to Claude Code (Tested)

More topics