export type SpendGateState = 'not_required' | 'preview_required' | 'waiting_for_user' | 'confirmed' | 'cancelled' | 'insufficient_credit' | 'safety_review_required' | 'failed';
export type SpendGateScope = 'tool_call' | 'parallel_batch' | 'workflow_run';
export type SpendGateTokenType = 'spark' | 'sogni';
export type SpendGateDecision = 'confirm' | 'cancel' | 'approved' | 'rejected' | 'cancelled';
export type NormalizedSpendGateDecision = 'confirm' | 'cancel';
export declare function normalizeSpendDecision(decision: SpendGateDecision): NormalizedSpendGateDecision;
export interface SpendGateCostBreakdownEntry {
    model: string;
    units: number;
    tokenType: SpendGateTokenType;
}
export interface SpendGatePendingToolCallRef {
    toolCallId: string;
    toolName: string;
    estimateUnits?: number;
}
export interface SpendGatePendingWorkflowPlanRef {
    workflowRunId: string;
    templateId: string;
}
export interface SpendGateEstimate {
    capacityUnits: number;
    breakdown: SpendGateCostBreakdownEntry[];
    tokenType: SpendGateTokenType;
    maxAcceptableUnits?: number;
}
export interface SpendGateRequest {
    scope: SpendGateScope;
    toolCallId?: string;
    workflowRunId?: string;
    estimateCapacityUnits: number;
    estimateCostBreakdown: SpendGateCostBreakdownEntry[];
    maxAcceptableUnits?: number;
    reason?: string;
}
export interface SpendGate {
    state: SpendGateState;
    gateId?: string;
    scope?: SpendGateScope;
    runId?: string;
    estimate?: SpendGateEstimate;
    reason?: string;
    pendingToolCalls?: SpendGatePendingToolCallRef[];
    pendingWorkflowPlan?: SpendGatePendingWorkflowPlanRef;
    createdAt?: string;
    updatedAt?: string;
    decidedAt?: string;
    decision?: SpendGateDecision;
    request?: SpendGateRequest;
    failureReason?: string;
}
export declare function isSpendGateState(value: unknown): value is SpendGateState;
export declare function isSpendGateScope(value: unknown): value is SpendGateScope;
export declare function isSpendGateTokenType(value: unknown): value is SpendGateTokenType;
export declare function isSpendGateDecision(value: unknown): value is SpendGateDecision;
export declare function isSpendGateCostBreakdownEntry(value: unknown): value is SpendGateCostBreakdownEntry;
export declare function isSpendGatePendingToolCallRef(value: unknown): value is SpendGatePendingToolCallRef;
export declare function isSpendGatePendingWorkflowPlanRef(value: unknown): value is SpendGatePendingWorkflowPlanRef;
export declare function isSpendGateEstimate(value: unknown): value is SpendGateEstimate;
export declare function isSpendGateRequest(value: unknown): value is SpendGateRequest;
export declare function isSpendGate(value: unknown): value is SpendGate;
export interface SpendGateValidationError {
    path: string;
    message: string;
}
export interface SpendGateValidationResult {
    valid: boolean;
    errors: SpendGateValidationError[];
}
export declare function validateSpendGateRequest(value: unknown): SpendGateValidationResult;
export declare function validateSpendGate(value: unknown): SpendGateValidationResult;
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