import { type ParseResult, parseBooleanEnv } from './cli/options.js';
import { RAGServer } from './server/index.js';
/**
 * Parse chunk minimum length from environment variable
 */
export declare function parseChunkMinLength(value: string | undefined): ParseResult<number>;
/** Parse the independent PDF image-storage toggle. */
export declare function parseStoreImages(value: string | undefined): ReturnType<typeof parseBooleanEnv>;
/**
 * Parse the rerank command. Unset, or set to whitespace only, leaves reranking
 * disabled; the string is otherwise kept verbatim because `src/rerank` splits
 * it into argv itself.
 */
export declare function parseRerankCmd(value: string | undefined): ParseResult<string>;
/**
 * Parse the rerank timeout, falling back to the default rather than to "no
 * timeout". `Number` rather than `Number.parseInt`, so a fractional value is
 * rejected instead of silently truncated.
 */
export declare function parseRerankTimeoutMs(value: string | undefined): ParseResult<number>;
/** Resolved server config type, named so helpers can share it. */
type ServerConfig = ConstructorParameters<typeof RAGServer>[0];
/**
 * Single source of truth for BASE_DIRS / BASE_DIR / cwd precedence. A resolver
 * error never falls back to cwd.
 */
export declare function resolveServerConfig(env: NodeJS.ProcessEnv, cwd: string): Promise<ServerConfig>;
/** Env-only configuration, so a bare `mcp-local-rag` launch suits MCP clients. */
export declare function startServer(): Promise<void>;
export {};
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