A tiny test-first loop you can run before every Claude Code patch: goal → failing test → smallest patch → verify.
A one-page guide to the 3 boring ways agents fail (State, Rules, Checks) and the order to fix them.
A permissions worksheet to whitelist tools/actions by default and separate “draft tools” from “ship tools”.
A simple diagram and examples for a reliable agent system: docs, tools, cadence, checks, and gates.