Preserve before you propose
An inherited engagement has commercial and organizational history. Copy the original commitment, its source, and its revision into the record before proposing a change. A reframe is a new proposal linked to that preserved baseline, not an edit that makes the old promise disappear.
State the contradiction narrowly: which claim is disputed, what evidence contests it, why it matters to delivery, and which outputs depend on it. Cross-class conflicts remain contested until a human with direct or explicitly delegated authority records a scoped disposition.