/**
 * Deterministic standing-context measurement for MCP tool surfaces.
 *
 * `utf8-bytes-div-4-v1` is deliberately an approximation, not a claim about a
 * provider-specific tokenizer. It is dependency-free, offline, and stable: v1
 * serializes the exact `tools/list` result object served to clients, then rounds
 * UTF-8 bytes up at four bytes per estimated token. Changing either the wire
 * projection or arithmetic requires a new version and reviewed baselines.
 *
 * change: bound-standing-context-cost
 */
export declare const STANDING_CONTEXT_TOKENIZER: "utf8-bytes-div-4-v1";
export interface StandingContextTool {
    name: string;
    description: string;
    inputSchema: unknown;
    [key: string]: unknown;
}
export interface StandingContextBudget {
    baselineTokens: number;
    maxTokens: number;
    rationale: string;
}
export interface ToolListPayload {
    tools: Array<StandingContextTool & {
        annotations: unknown;
    }>;
}
/** Construct the exact result shared by the live `tools/list` handler and CI. */
export declare function buildToolListPayload<T extends StandingContextTool, A>(tools: readonly T[], annotationsFor: (toolName: string) => A): {
    tools: Array<T & {
        annotations: A;
    }>;
};
/** Serialize the exact live result in its deterministic registry order. */
export declare function serializeToolListPayload(payload: ToolListPayload): string;
/** Estimate an exact `tools/list` result without a model call or network. */
export declare function measureStandingContextTokens(payload: ToolListPayload): number;
/** Fail with the review receipt needed to diagnose a budget regression. */
export declare function assertStandingContextBudget(preset: string, measuredTokens: number, budget: StandingContextBudget): void;
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