import { SlackAlertBlock, SlackButtonElement, SlackCardBlock, SlackCarouselBlock, SlackContextBlock, SlackDataTableBlock, SlackDataTableCell, SlackImageBlock, SlackSectionBlock, SlackTextObject } from "./types.js";
//#region src/slack/constants.d.ts
/** The block limit for a Slack message. */
export declare const MESSAGE_BLOCK_CAP = 50;
/** The block limit for a Slack modal. */
export declare const MODAL_BLOCK_CAP = 100;
/**
 * The maximum number of top-level blocks accepted when parsing Slack Block
 * Kit JSON back into generative UI, guarding against a hostile or malformed
 * payload.
 */
export declare const INBOUND_BLOCK_CAP = 200;
/** The character limit for header text. */
export declare const HEADER_TEXT_CAP = 150;
/** The character limit for section text. */
export declare const SECTION_TEXT_CAP = 3000;
/** The maximum number of fields in one section. */
export declare const FACT_FIELD_CAP = 10;
/** The character limit for one section field. */
export declare const FACT_FIELD_TEXT_CAP = 2000;
/** The character limit for button labels and option labels. */
export declare const INTERACTIVE_TEXT_CAP = 75;
/** The character limit for an action_id. */
export declare const ACTION_ID_CAP = 255;
/** The character limit for a button's serialized value payload. */
export declare const BUTTON_VALUE_CAP = 2000;
/** The maximum number of elements in one actions block. */
export declare const ACTIONS_ELEMENT_CAP = 25;
/** The maximum number of options in a static select. */
export declare const SELECT_OPTION_CAP = 100;
/** The maximum number of options in a radio-button group. */
export declare const RADIO_OPTION_CAP = 10;
/** The character limit for a select or input placeholder. */
export declare const PLACEHOLDER_TEXT_CAP = 150;
/** The character limit for an input's label. */
export declare const INPUT_LABEL_CAP = 2000;
/** The maximum number of elements in one context block. */
export declare const CONTEXT_ELEMENT_CAP = 10;
/** The character limit for one context element's text. */
export declare const CONTEXT_TEXT_CAP = 3000;
/** The character limit for card titles and subtitles. */
export declare const CARD_TITLE_CAP = 150;
/** The character limit for a card's body text. */
export declare const CARD_BODY_CAP = 200;
/** The character limit for a card's subtext. */
export declare const CARD_SUBTEXT_CAP = 200;
/** The maximum number of buttons in a card's actions. */
export declare const CARD_ACTIONS_CAP = 3;
/** The minimum number of elements in a renderable carousel. */
export declare const CAROUSEL_CARD_MIN = 1;
/** The maximum number of elements in a carousel. */
export declare const CAROUSEL_CARD_CAP = 10;
/** The character limit for an alert's text. */
export declare const ALERT_TEXT_CAP = 200;
/**
 * The maximum number of data rows in a data-table block; the emitted `rows`
 * array additionally carries one header row.
 */
export declare const DATA_TABLE_ROW_CAP = 200;
/** The maximum number of columns in a data-table block. */
export declare const DATA_TABLE_COLUMN_CAP = 20;
/**
 * The cumulative character limit (summed across every cell's text) shared by
 * every data-table block in one payload.
 */
export declare const DATA_TABLE_CHAR_BUDGET = 20000;
/** The caption emitted on every native data-table block. */
export declare const TABLE_CAPTION = "Table";
/** The cumulative character limit for native markdown blocks. */
export declare const MARKDOWN_TEXT_BUDGET = 12000;
/** Builds the message-surface fallback for an alert. */
export declare function buildAlertFallback(title: string, description: string, tone: "info" | "success" | "warning" | "danger"): readonly [SlackContextBlock, SlackSectionBlock];
/** Builds a 2026 Slack modal-only alert block, mapping `tone` to its `level`. */
export declare function buildAlertBlock(text: string, tone: "info" | "success" | "warning" | "danger"): SlackAlertBlock;
type CardBlockFields = {
  readonly heroImage?: SlackImageBlock;
  readonly title?: SlackTextObject;
  readonly subtitle?: SlackTextObject;
  readonly body?: SlackTextObject;
  readonly subtext?: SlackTextObject;
  readonly actions?: readonly SlackButtonElement[];
};
/** Builds a 2026 Slack card block from its already-clamped fields. */
export declare function buildCardBlock(fields: CardBlockFields): SlackCardBlock;
/** Builds a 2026 Slack carousel block. */
export declare function buildCarouselBlock(elements: readonly SlackCardBlock[]): SlackCarouselBlock;
/** Builds a 2026 Slack data-table block; `rows[0]` must be the header row. */
export declare function buildDataTableBlock(rows: readonly (readonly SlackDataTableCell[])[]): SlackDataTableBlock;
/** Builds the final note used when a surface block budget is exceeded. */
export declare function buildBlockBudgetNote(omitted: number): SlackContextBlock;
//#endregion
//# sourceMappingURL=constants.d.ts.map