import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { detectProjectName } from "../utils/ProjectIdentity";
/** Serialized size of every tool schema sent to the client, for cost accounting. */
export declare function getToolSchemaChars(): number;
/** Every tool name with a registered handler, advertised or not. */
export declare function getRegisteredToolNames(): string[];
/** Tool names whose schemas this session sends to the client. */
export declare function getAdvertisedToolNames(): string[];
/** Which tools this session advertises, and why — surfaced by `token_budget`. */
export declare function getToolSurfaceSummary(): {
    profile: string;
    advertised: number;
    hidden: number;
    total: number;
    activeGroups: string[];
};
export interface ToolCallEvent {
    tool: string;
    args: Record<string, any>;
    result: "OK" | "ERROR" | "HIT" | "MISS";
    latency: number;
    tokensImpact?: number;
    error?: string;
}
/**
 * AN-18: `lemma_toolbox` is a dispatcher, not a tool. Every event the CallTool
 * wrapper emits — receipts, onToolCall, cost attribution — must name the tool that
 * actually ran, or all toolbox-dispatched errors/costs pile up under "lemma_toolbox"
 * and the per-tool accounting lies exactly the way the audit caught (18/19 errors
 * misattributed). Discovery (list/schema) stays under the toolbox name: no inner
 * tool ran, so there is nothing to attribute.
 */
export declare function effectiveToolName(name: string, args: Record<string, any> | undefined): string;
export declare function setupToolsHandlers(server: Server, onToolCall?: (event: ToolCallEvent) => void): void;
/**
 * Onboarding built from the filesystem alone.
 *
 * The proxy produces a richer map, but this tool is in the core surface and CLAUDE.md tells
 * the model to call it first — so when the proxy is down, the first call of every session
 * used to return an error and the session started with no context at all. A local answer is
 * strictly better than that, and it never fails.
 */
export declare function buildLocalOnboarding(cwd: string): string;
export declare const detectExpectedProjectName: typeof detectProjectName;
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