Higgsfield Acting Director

[OFFICIAL — Higgsfield "Hell Grind" open-source brief] — the performance system behind Higgsfield's 95-minute AI feature film, adapted to this repo's prompt surfaces.

The core axiom of the entire system: acting is BEHAVIOR under pressure, not a display of emotion. A character wants something, something is in the way, and they act to get it. Emotion is a byproduct of that struggle — never the thing you write directly.

This is a layer on top of ../higgsfield-seedance/SKILL.md: the paragraph this skill produces goes into the PERFORMANCE / CHARACTER ACTING block of an otherwise normal Seedance prompt. It does not change camera, light, wardrobe, or grade.