/** Dependency types and installer interface */
/** Built-in dependency types. Extendable via string for custom installers. */
export type DependencyType = 'npm' | 'pip' | (string & {});
export interface DependencyInstallResult {
    type: DependencyType;
    success: boolean;
    output: string;
}
/** Abstract interface for a language-specific dependency installer. */
export interface IDependencyInstaller {
    /** Unique identifier for this installer type, e.g. 'npm', 'pip', 'cargo' */
    readonly type: DependencyType;
    /**
     * Detect whether this installer is applicable for the given skill root.
     * E.g. check if package.json / requirements.txt / Cargo.toml exists.
     */
    detect(skillRoot: string): boolean;
    /**
     * Execute dependency installation in the given skill root directory.
     * @param skillRoot Absolute path to the skill package root.
     * @param timeoutMs Maximum time in milliseconds for the install process.
     */
    install(skillRoot: string, timeoutMs: number): Promise<DependencyInstallResult>;
}
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