import type { McpConfig } from "@pulsemcp/air-core";
/**
 * Find all unresolved ${VAR} patterns in a transform config.
 * Recursively walks all string values in MCP servers and hooks.
 */
export declare function findUnresolvedVars(config: McpConfig): string[];
/**
 * Find unresolved ${VAR} patterns in HOOK.json files at the given paths.
 * Reads each HOOK.json, walks all string values, and returns unique var names.
 */
export declare function findUnresolvedHookVars(hookPaths: string[]): string[];
/**
 * Validate that no unresolved ${VAR} patterns remain in a config file.
 * Checks `mcpServers` and `hooks` keys. Use findUnresolvedHookVars() to
 * also check HOOK.json files, or rely on prepareSession() which checks
 * all config files and HOOK.json files.
 *
 * @throws Error listing all unresolved variables if any are found.
 */
export declare function validateNoUnresolvedVars(mcpConfigPath: string): void;
export declare function unresolvedVarsMessage(configPath: string, unresolved: string[]): string;
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