/**
 * The longest output-style NAME the seat admits — the reference implementation's own bound (its `output_style`
 * renderer checks `style.length` against `HQe`, declared `HQe=256`; cli 2.1.280). Past it the reference drops the
 * per-turn reminder and logs an error; here the seat is refused at prepare (`config.output_style_invalid`), so a
 * name the deployment declared is never silently not stated.
 */
export declare const OUTPUT_STYLE_NAME_MAX = 256;
/**
 * The frame body — the reference renderer's sentence, byte for byte: the name (escaped there; held to one
 * neutralized line here), then the style's turn reminder or the default one. Name and reminder are the deployment's
 * declaration (caller-trusted, like `appendSystemPrompt`); the attachment wrap point still neutralizes the authority
 * tags in the whole body.
 */
export declare function renderOutputStyle(name: string, turnReminder: string | undefined): string;
/**
 * The seat's door: the rendered frame body, or `undefined` when the seat is absent. Every bad value is refused by
 * name (`config.output_style_invalid`), never ignored — a seat the deployment believes it declared must not run as no
 * seat. Four shapes: not an object of exactly `name` / `turnReminder`; a `name` that is not a string or is empty; a
 * `name` longer than {@link OUTPUT_STYLE_NAME_MAX}; a `turnReminder` present but not a non-empty string.
 */
export declare function resolveOutputStyleFrame(seat: unknown): string | undefined;