Applies marginal thinking: the relevant decision is the next unit, not the average or the sunk cost. Triggers: 'should we do more of this', 'should we expand', 'should we cut', 'marginal cost', 'sunk cost', 'we've already invested so much', 'average cost', 'is this worth continuing', 'how much should we produce', 'at what point should we stop', any decision about quantity, scale, or whether to continue an existing commitment.
$npx -y skills add human-avatar/skills-for-humanity --skill s4h-economics-marginInstalls into the current project.
Run `npx skills use "https://github.com/human-avatar/skills-for-humanity" --skill "human-avatar/skills-for-humanity/s4h-economics-margin"` and follow the generated skill instructions now. Read its complete output, redirecting it to a temporary file first if necessary. Resolve relative paths from the supporting-files directory it provides.
Use the skills in "https://github.com/human-avatar/skills-for-humanity" that are relevant to the current task. Run `npx skills add "https://github.com/human-avatar/skills-for-humanity"` and select the relevant skills, then follow their instructions.