import { type ToolCapability, type ToolContext, type ToolDefinition, type ToolDescriptor, type ToolExecutionResult, type ToolSchemaDefinition } from "./ToolTypes.js";
/**
 * Projects a registered tool into its model-facing descriptor. Kept as a free
 * function so connector adapters can reuse the same defaulting rules.
 */
export declare const toolDescriptorFor: (tool: ToolDefinition) => ToolDescriptor;
export declare const sanitizeToolArguments: (value: unknown, schema: ToolSchemaDefinition | undefined) => {
    value: unknown;
    dropped: string[];
};
export declare class ToolRegistry {
    private tools;
    register(tool: ToolDefinition): void;
    list(): ToolDefinition[];
    describe(): Array<Pick<ToolDefinition, "name" | "description" | "inputSchema">>;
    /**
     * Model-facing view of the registry, optionally narrowed to a set of tool
     * names. This is derived on every call rather than cached so the planner can
     * never see a schema the executor would not honour.
     */
    catalog(names?: readonly string[]): ToolDescriptor[];
    /** Capability -> tools, for the first stage of two-level tool exposure. */
    capabilities(names?: readonly string[]): Map<ToolCapability, ToolDescriptor[]>;
    execute(name: string, args: unknown, context: ToolContext): Promise<ToolExecutionResult>;
}
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