AI Engineering — page 3

Articles in this category

• 19

  Claude Code 529 Overloaded: What It Retries For You, and What It Won't

  A 529 isn't your usage limit and doesn't touch your quota. Claude Code already retried ten times before it told you. The useful question is which failures it retries automatically, which it deliberately doesn't, and the one environment variable that stops an unattended run dying on a transient capacity blip.TroubleshootingAI Engineering·August 27, 2026·8 min read
• 20

  Claude Code 'Raw Mode Is Not Supported' on Windows? Match the Error First

  Raw mode is not supported, 'claude' is not recognized, 32-bit Windows, Exec format error on WSL1 — five different Windows startup failures that get treated as one problem. Each has a distinct cause and a distinct fix, and four of them aren't install failures at all.TroubleshootingAI Engineering·August 21, 2026·9 min read
• 21

  Why Is Claude Code So Slow, Hanging or Eating Memory? Start With the Silent Failures

  High CPU, frozen commands and missing search results usually trace to a handful of specific causes — a compaction loop, a bundled ripgrep that won't run, or WSL quietly returning fewer matches while claude doctor reports everything as OK.TroubleshootingAI Engineering·August 16, 2026·9 min read
• 22

  Why Claude Code Uses So Many Tokens (and How to See Where They Go)

  Every request carries your whole conversation, so context size — not message count — sets what a turn costs. How to see your Claude Code token usage with /usage and /context, why it climbs while you're idle, and what thinking, plan mode and /compact really cost.TroubleshootingAI Engineering·August 14, 2026·17 min read
• 23

  MCP Server Not Showing Up or 'Failed to Connect' in Claude Code? Read the Status First

  Your MCP server is configured but Claude can't see it. `claude mcp list` tells you which of five different problems you actually have — pending approval, a failed spawn, a Windows .cmd shim, zero advertised tools, or a server that was never in the list to begin with.TroubleshootingAI Engineering·August 11, 2026·12 min read
• 24

  RAG Retrieval Returns the Wrong Chunks: A Production Debugging Guide

  Your RAG demo worked and production doesn't. Before you swap the embedding model, check the four things that actually break retrieval: recall settings, chunk boundaries, keyword blindness, and where the answer sits in the prompt.TroubleshootingAI Engineering·August 9, 2026·11 min read
• 25

  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 Engineering·August 9, 2026·12 min read
• 26

  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 Engineering·August 9, 2026·20 min read