/**
 * Discover task-source manifests from two roots: the sources bundled inside
 * this package (`<pkg>/task-sources`) and the user-installed sources under
 * `~/.config/groundcrew/task-sources`. Each `<dir>/source.json` is validated
 * and indexed by manifest name; a later root overrides an earlier one on a
 * name collision (user over package), recording a warning. The registry
 * (`../registry.ts`) turns each result into an enable-by-kind adapter.
 */
import { type SourceManifest } from "./manifest.ts";
type ManifestOrigin = "package" | "user";
export interface DiscoveredManifest {
    manifest: SourceManifest;
    manifestDir: string;
    origin: ManifestOrigin;
}
export interface ManifestRoot {
    dir: string;
    origin: ManifestOrigin;
}
export interface DiscoveryResult {
    manifests: DiscoveredManifest[];
    warnings: string[];
}
export declare function discoverFromRoots(roots: readonly ManifestRoot[]): DiscoveryResult;
export declare function discoverTaskSourceManifests(): DiscoveredManifest[];
/**
 * Look up a single discovered manifest by name (the enable-by-kind `kind`).
 * Manifest-only: a built-in code adapter (`linear`, `todo-txt`) has no manifest,
 * so this returns `undefined` for those kinds. Part of the public discovery API
 * so crew-config can read a source's install-time hints (prerequisites,
 * secrets) without re-scanning the roots itself.
 *
 * This reads the discovery roots fresh on each call. Prefer
 * `discoverTaskSourceManifests()` when looking up multiple names in one flow so
 * callers only pay the filesystem scan once.
 */
export declare function getTaskSourceManifest(name: string): SourceManifest | undefined;
export {};
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