Small agreements accumulate a series of minor, easy yeses to build psychological momentum toward a larger target commitment. Each individual agreement is trivial and often genuinely true, which is what makes the pattern hard to resist: refusing any single item would feel unreasonable, and the run of agreement establishes a rhythm that the consequential request then rides.
The tactic draws on the same commitment-and-consistency drive Cialdini documents: once you have publicly agreed to a sequence of related propositions, saying no to the next one creates dissonance, because it breaks the consistent stance you have just been enacting. Sales training formalizes this as the “yes ladder” or “momentum close.” The engine is entirely legitimate in collaborative settings — good facilitators and negotiators build alignment by confirming shared ground before proposing next steps.
It becomes manipulative when the easy agreements are engineered purely as a runway, the questions are leading and self-answering, and the real ask depends on the momentum rather than standing on its own. The defense is structural rather than combative: the small yeses are cheap and often fine to give, but the decision that matters deserves to be lifted out of the rhythm and made deliberately, on its own terms.