/**
 * The label vocabulary the projection uses.
 *
 * Two kinds of label, doing two different jobs:
 *
 * - **The discovery label** (`aidlc` by default) is how the whole issue map is found in
 *   one `gh issue list` call. It is identity: an issue without it is invisible to the
 *   projection.
 * - **A status label** (`aidlc:backlog`, `aidlc:done`, …) is how a reader tells planned
 *   from in-flight without opening anything.
 *
 * The status names are *derived* from `ROADMAP_STATUSES` rather than listed here, so the
 * two vocabularies cannot drift: adding a sixth status becomes a compile-time fact
 * instead of a label nobody remembered to add.
 *
 * `LABEL_COLOR` and `LABEL_DESCRIPTION` exist because `gh label create` exits 1 on a
 * label that already exists, so creation must pass `--force` — and `gh` chooses a
 * *random* colour when none is given, so `--force` without an explicit colour would
 * repaint the label on every single run. Fixed values make the ensure genuinely
 * idempotent.
 *
 * Requirements: roadmap-issue-projection/AC-17, roadmap-issue-projection/AC-43
 *
 * @module
 */
import { type RoadmapStatus } from '../paths.js';
/** Default discovery label. Overridable via `roadmap.sync.label`. */
export declare const DEFAULT_DISCOVERY_LABEL = "aidlc";
/** GitHub's own label-name limit. */
export declare const MAX_LABEL_LENGTH = 50;
/** Prefix marking a label this projection owns. */
export declare const STATUS_LABEL_PREFIX = "aidlc:";
/** The label carrying an item's status. */
export declare function statusLabel(status: RoadmapStatus): string;
/** Every status label, derived. */
export declare const ALL_STATUS_LABELS: readonly string[];
/**
 * True when a label name is one this projection owns.
 *
 * Used to decide what `update-labels` may remove. Anything failing this test is a
 * human's label and is never touched — which is why the update uses `--add-label` /
 * `--remove-label` rather than a wholesale `--label` replacement.
 */
export declare function isStatusLabel(name: string): boolean;
/** Fixed colours, so `--force` is idempotent rather than a repaint. */
export declare const LABEL_COLOR: Readonly<Record<string, string>>;
/** Fallback colour for a custom discovery label. */
export declare const FALLBACK_LABEL_COLOR = "5319e7";
/** Fixed descriptions, for the same reason as the colours. */
export declare const LABEL_DESCRIPTION: Readonly<Record<string, string>>;
/** Fallback description for the discovery label, whatever it is named. */
export declare function discoveryLabelDescription(): string;
/** Colour for a label name, falling back for a custom discovery label. */
export declare function colorFor(name: string): string;
/** Description for a label name, falling back for a custom discovery label. */
export declare function descriptionFor(name: string): string;
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