import type { ProjectLintToolDetection } from './rule-pre-read-types.js';
/** The reason a project with no lint tooling gets. Exact, and never empty. */
export declare const NO_LINT_TOOL_REASON = "no lint tool declared by this project";
/** The tool a command line invokes, or `null` when it invokes no known tool. */
export declare function toolNameFromCommand(command: string, scripts: ReadonlyMap<string, string>, depth?: number): string | null;
/** Whether a name is a lint tool's name. */
export declare function isLintToolName(name: string): boolean;
/**
 * The project's own lint tooling, discovered from its declaration sites.
 *
 * A project that declares no lint tool gets an EXPLICIT reason, never a
 * silent empty list.
 */
export declare function detectProjectLintTools(projectRoot: string): ProjectLintToolDetection;