import type { ResolvedSkillSource, ResolveSkillSourceContext } from '../types.js';
/**
 * Split a version-pinned bare specifier into { name, version }.
 * Throws if no `@version` pin is present — npm sources MUST be version-pinned
 * for reproducibility (spec §11a).
 */
export declare function splitNpmSpecVersion(spec: string): {
    name: string;
    version: string;
};
/**
 * Resolve a `{ npm }` skill source.
 *
 * resolveAssetReference locates the installed package subpath (location only —
 * NO registry-integrity check). We then content-hash the staged tree and record
 * version + tree-hash in the identity. This is NOT a registry dist.integrity
 * guarantee; v1 stages what is installed (spec §11a, stated honestly).
 *
 * @param spec Bare specifier WITH a version pin: `@scope/pkg@1.2.3[/subpath]`.
 */
export declare function resolveNpmSource(spec: string, ctx: ResolveSkillSourceContext): Promise<ResolvedSkillSource>;
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