/**
 * Structural subset of the Agent Client Protocol (ACP) types that harness
 * adapters consume.
 *
 * Defined structurally (rather than imported from `@agentclientprotocol/sdk`)
 * so the stream translator stays a pure, fixture-testable state machine.
 */
export type AcpContentBlock = {
    type: 'text';
    text: string;
} | {
    type: string;
    [key: string]: unknown;
};
export type AcpToolCallStatus = 'pending' | 'in_progress' | 'completed' | 'failed';
export interface AcpToolCallUpdate {
    toolCallId: string;
    title?: string | null;
    kind?: string | null;
    status?: AcpToolCallStatus | null;
    rawInput?: unknown;
    rawOutput?: unknown;
    content?: Array<{
        type: string;
        content?: AcpContentBlock;
        [key: string]: unknown;
    }> | null;
}
export type AcpSessionUpdate = {
    sessionUpdate: 'agent_message_chunk';
    content: AcpContentBlock;
} | {
    sessionUpdate: 'agent_thought_chunk';
    content: AcpContentBlock;
} | ({
    sessionUpdate: 'tool_call';
} & AcpToolCallUpdate) | ({
    sessionUpdate: 'tool_call_update';
} & AcpToolCallUpdate) | {
    sessionUpdate: 'plan';
    entries: Array<unknown>;
} | {
    sessionUpdate: 'available_commands_update';
} | {
    sessionUpdate: 'current_mode_update';
} | {
    sessionUpdate: 'user_message_chunk';
    content: AcpContentBlock;
};
export type AcpStopReason = 'end_turn' | 'max_tokens' | 'max_turn_requests' | 'refusal' | 'cancelled' | (string & {});
export interface AcpUsage {
    inputTokens?: number | null;
    outputTokens?: number | null;
    totalTokens?: number | null;
    cachedReadTokens?: number | null;
    thoughtTokens?: number | null;
}
export interface AcpPermissionOption {
    optionId: string;
    name: string;
    kind: 'allow_once' | 'allow_always' | 'reject_once' | 'reject_always';
}
export interface AcpPermissionRequest {
    sessionId: string;
    toolCall: AcpToolCallUpdate;
    options: Array<AcpPermissionOption>;
}
export type AcpPermissionOutcome = {
    outcome: 'cancelled';
} | {
    outcome: 'selected';
    optionId: string;
};
export type AcpPermissionMode = 'default' | 'acceptEdits' | 'bypassPermissions';
export type PermissionHandler = (request: AcpPermissionRequest) => Promise<AcpPermissionOutcome> | AcpPermissionOutcome;