/** Error classes for the SKILL framework */
export declare class SkillFrameworkError extends Error {
    readonly code: string;
    constructor(message: string, code: string);
}
export declare class SkillValidationError extends SkillFrameworkError {
    constructor(message: string);
}
export declare class SkillNotFoundError extends SkillFrameworkError {
    constructor(name: string);
}
export declare class SkillSecurityError extends SkillFrameworkError {
    constructor(message: string);
}
export declare class ToolNotFoundError extends SkillFrameworkError {
    constructor(toolName: string, skillName: string);
}
export declare class ScriptExecutionError extends SkillFrameworkError {
    readonly stdout?: string | undefined;
    readonly stderr?: string | undefined;
    constructor(message: string, stdout?: string | undefined, stderr?: string | undefined);
}
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