Claude Code Field Kit: a tested safety hook and lean Claude.md

What happened

in an entirely unsupervised loop. (125 words) Paragraph 2 (80-160 words)*: Complementing the safety hook, the lean Claude.md templates establish a structured context window for the AI assistant. These templates use minimalist markdown formats to feed critical project rules, directory maps, and style guides directly to the model without wasting valuable token space. By keeping the templates lean

Claude Code Field Kit A small, battle-tested set of drop-in assets for Claude Code — the things you actually want on day one: a safety hook, real CLAUDE.md templates, and a genuinely useful skill. Each piece was exercised before it went in — the hook has passing test cases, the templates follow current Claude Code conventions.

How it works

What's inside 🛡️ hooks/ — a safety net for Bash guard-dangerous-bash.sh is a PreToolUse hook that blocks a few genuinely destructive commands (rm -rf /, rm -rf ~, fork bombs, mkfs, raw-disk dd, and --force pushes to main/master) and lets everything else through untouched. Two starters: nextjs-app-router.CLAUDE.md — Next.js App Router + TS + Tailwind python-uv.CLAUDE.md — Python managed with uv Both encode only the non-obvious: conventions, the definition of "done", and the landmines.

Why it matters

🧩 skills/ — a skill that pulls its weight pr-writeup writes a reviewer-friendly PR description from the real branch diff, not a hallucinated summary. See the full write-up from HN Claude/Codex/Fable via the source link for quotes and complete context.

Who is affected

Read the original coverage at HN Claude/Codex/Fable via the source link above for the complete details and primary quotes.

What to watch next

Cross-check release notes and official docs before changing production systems based on early reporting.