/**
 * postgres-mcp - Tool Scope Map
 *
 * Builds a reverse lookup from tool name to required OAuth scope
 * by inverting TOOL_GROUPS × TOOL_GROUP_SCOPES. Computed once at
 * module load for O(1) per-call lookup.
 */
import type { StandardScope } from "./scopes.js";
/**
 * Get the required scope for a tool by name.
 *
 * @param toolName - The MCP tool name (e.g., "pg_read_query")
 * @returns The required scope, or "read" as a safe default for unknown tools
 */
export declare function getRequiredScope(toolName: string): StandardScope;
/**
 * Get the full tool-to-scope map (for testing/debugging).
 */
export declare function getToolScopeMap(): ReadonlyMap<string, StandardScope>;
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