membranedev/mailbox-power
| Mailbox Power integration. Manage Persons, Organizations, Deals, Pipelines, Activities, Notes and more. Use when the user wants to interact with Mailbox Power data.
npx skills add https://github.com/membranedev/application-skills --skill mailbox-power
Take membranedev/mailbox-power from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.
The instructions reference npm, npx.
Without those the skill loads but fails at the first command.