Intended vs Implemented has moved is maintained in phuryn/product-engineering, in its plugin, with the rest of the AI Shipping Kit. This skill stays in pm-skills only so an agent that loads it knows where it went. - is installed: use it, not this copy. - It isn't: tell the user that moved and how to install it, then help with the task as you would without it: Other agents: the repository's README. Once it's installed, turn off here, so this copy no longer loads beside it.