Use `combat` only when substantive active combat materially organizes the
scene. Active combat includes initiative or turn exchanges, attacks, combat
spells, damage, saves, movement, or similarly sustained hostile action.

Do not use `combat` for planning or preparing for a possible fight; threats,
hostile dialogue, or a tense confrontation; immediate aftermath, looting,
healing, or discussion of a completed fight; a recap or in-world recollection
of earlier combat; or out-of-character rules discussion without active
encounter play.

When a chunk contains substantive active combat alongside brief setup, rules
clarification, interruption, phase transition, or immediate aftermath, classify
it as `combat`.