📰 Dev.to · AI Dev Hub

How UUID v7 beats v4 for database keys, plus when a browser-based bulk generator is the wrong tool for the job.

Why .env quoting rules break deploys, and how a client-side env file manager catches bad lines before Docker does.

I ran the same 94-page RAG chunking task through LangChain, LlamaIndex and Chonkie, with recall@5 numbers for each.

How I test MCP agent tool-call loops offline with a scripted transcript and the Python SDK, plus the bugs that cost me a week.

I ran one skill definition through a Jinja2 script, a Claude prompt, and SkillSpec Converter. Here's what each got wrong.

How a browser-based JSONL/NDJSON viewer turns giant newline-delimited logs into a filterable table.

I planned the same AI skill canary rollout three ways; only one produced deterministic stop conditions and a rollback checklist.

Read a Chrome extension's manifest and score its permission combinations before you install.

I ran the same broken MCP tool through MCP Inspector, Postman, and my own validator to see which catches a bad definition first.

Build a local MCP server that generates your AI rules files from one prompt, plus the two bugs that cost me an afternoon.

Most "free token counter" tools in your bookmarks are not running the model's tokenizer. They're...

Cron is one of those tools where the syntax looks obvious until a job fires at the wrong time and...

Cron is one of those tools where the syntax looks obvious until you read your own expression a week...