A title is not a method
Product-marketing skill libraries are very good at names. Research the market. Find your position. Write better copy. Then the useful part disappears behind a prompt box and a cheerful promise that the machine knows what it is doing.
PMM OS begins where the title stops. Each skill shows when to use it, what to bring, the method itself, the output, the guardrails and a concrete example. A reader can judge the work before asking an agent to do it.
Take the method with you
PMM Skills is the public catalogue inside the OS. Read a method on the page or install its file with one command. If you would rather stay in a chat, the same page opens Claude or ChatGPT with a sample brief and a link back to the source method.
Portability can turn into ambiguity very quickly. Here, the method travels with its evidence requirements and failure conditions intact.
Leave the gaps on the page
The catalogue has 28 original skills across seven live categories. Four areas are still missing: field and events, paid acquisition, conversion, and retention and lifecycle. They stay in the coverage ledger with the same visual weight as the finished work.
The site also hard-fails its build if a shipped string contains a forbidden client or employer name. Provenance remains part of the work without turning somebody else’s private material into decoration.
Name the number. Show the command.
The measured page separates figures into three states: measured with the producing command, estimated with the method printed beside it, and not claimed with the condition that would change that.
The catalogue is live and deliberately noindex. That is the honest ending for now: 28 working methods, visible gaps and a public record of what each claim can bear. Adoption and business impact have not been established.