Recent Articles

2026-06-30
Next.js routes-manifest.json Missing? Check for Parallel next build First
A practical guide to diagnosing missing .next/routes-manifest.json errors caused by concurrent next build processes writing to the same .next directory.
nextjsbuilddebuggingciagentsstatic-export
2026-06-29
MCP stdio Server Logging: Keep Logs on stderr, Not stdout
Why MCP stdio servers should avoid console.log, keep stdout clean for JSON-RPC, and send diagnostic logs to stderr instead.
mcpstdiologgingnodejsdebuggingclaude-code
2026-06-28
Designing an MCP Markdown Knowledge Server: Why It Should Not Return HTML
How to design an MCP server for a Markdown knowledge base, why raw Markdown is better than HTML, and how to share one source across clients.
mcpmarkdownknowledge-baseclaude-codenextjsarchitecture
2026-06-27
Why only next dev breaks CSS: it was NODE_ENV=production
Why next build passes but next dev fails with a CSS parse error in Next.js, how to detect NODE_ENV pollution, and how to fix it for good.
nextjsnode-envcssdebuggingwindows
2026-06-26
5 Pitfalls of Next.js output: export and How to Avoid Them
Five common gotchas when exporting a Next.js 15 app with output: export — force-static metadata routes, no next/og, trailingSlash, and next/image — with fixes.
nextjsstatic-exportcloudflare-pagesssgdeployment