Decide which skill a task requires, and which are mandatory rather than optional. A regulation rather than a menu - untrusted content is scanned before it is used, a search happens before a skill is written, hardware symptoms are read before anything is changed, a result that could quietly be wrong is checked by something that did not produce it, an independent agent reads a skill before it is called done. Covers what forces a skill with no judgement allowed, what forces it under a condition, what is only worth considering, what to do when two apply, and what to do when none does. Ships a router that prints the obligations in order with the literal step for each, and a te…