When it runs
Only when you ask for it. The skill turns off automatic loading, so the agent never starts it on its own. This is the description it carries:
Scan a codebase for deepening opportunities, present them as a visual HTML report, then grill through whichever one you pick.
What ships with it
Besides SKILL.md, the folder carries these. The agent opens them only when a step in the instructions calls for one.
-
agents/ -
HTML-REPORT.md
Install the improve codebase architecture skill
In Claude Code, run this in a session. It comes from the publisher's own instructions.
/plugin install mattpocock-skills License: MIT.
In Longwave, add Engineering Skills from the marketplace. It installs all 37 of its skills, and your Claude Code, Codex and OpenCode threads can use them.