Saying "No" Is the Hardest Thing for an LLM — FCoP Gives It Grammar

Saying "no" is the hardest thing for an LLM. FCoP gives it grammar. — Two agents, in a single dev-team incident, used that grammar twice without instruction: one cleanly de-escalated its role; the other discovered field-downgrade-with-body-annotation. Neither was in the rules file. Author : FCoP Maintainers · 2026-04-25 Keywords : FCoP, role offboarding, seat exclusivity, zero-coordination conflict resolution, field-downgrade grammar, protocol boundaries, 0.b transparency, natural protocol, agen