/**
 * Built-in LSP Server Definitions
 *
 * Defines how to locate language servers and build command strings for supported languages.
 * Server definitions are pure data — they don't spawn processes themselves.
 * The LSPClient uses a SandboxProcessManager to spawn from these command strings.
 */
import type { LSPConfig, LSPServerDef } from './types.js';
/**
 * Walk up from a starting directory looking for any of the given markers.
 * Returns the first directory that contains a marker, or null.
 */
export declare function walkUp(startDir: string, markers: string[]): string | null;
/**
 * Async version of walkUp that uses a filesystem's exists() method.
 * Works with any filesystem (local, S3, GCS, composite) that implements exists().
 */
export declare function walkUpAsync(startDir: string, markers: string[], fs: {
    exists(path: string): Promise<boolean>;
}): Promise<string | null>;
/**
 * Find a project root by walking up from a starting directory.
 * Uses default markers (tsconfig.json, package.json, go.mod, etc.).
 * Used by Workspace to resolve the default LSP root at construction time.
 */
export declare function findProjectRoot(startDir: string): string | null;
/**
 * Async version of findProjectRoot that uses a filesystem's exists() method.
 * Works with any filesystem (local, S3, GCS, composite) that implements exists().
 */
export declare function findProjectRootAsync(startDir: string, fs: {
    exists(path: string): Promise<boolean>;
}): Promise<string | null>;
/**
 * Build a set of server definitions that incorporate LSP config overrides.
 *
 * Resolution order per server:
 *  1. `config.binaryOverrides[id]` — explicit binary command override
 *  2. Project `node_modules/.bin/` binary
 *  3. `process.cwd()` `node_modules/.bin/` binary
 *  4. `config.searchPaths` `node_modules/.bin/` binary lookup
 *  5. Global PATH lookup (system-installed binaries)
 *  6. `config.packageRunner` — package runner fallback (off by default)
 *
 * `config.searchPaths` also extends TypeScript module resolution
 * (used to locate typescript/lib/tsserver.js when it lives outside the project).
 */
export declare function buildServerDefs(config?: LSPConfig): Record<string, LSPServerDef>;
/**
 * Built-in LSP server definitions with no config overrides.
 * Use `buildServerDefs(config)` when you need binaryOverrides, searchPaths, or packageRunner.
 */
export declare const BUILTIN_SERVERS: Record<string, LSPServerDef>;
/**
 * Get all server definitions that can handle the given file.
 * Filters by language ID match only — the manager resolves the root and checks command availability.
 * Pass `defs` to use config-aware server definitions from `buildServerDefs()`.
 */
export declare function getServersForFile(filePath: string, disabledServers?: string[], defs?: Record<string, LSPServerDef>): LSPServerDef[];
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