export declare const WA_CHANNEL_SERVER_NAME = "whatsapp-channel";
export interface WaChannelMcpParams {
    sessionId: string;
    /** The WhatsApp sender this session serves (== spawn senderId). */
    senderId: string;
    /** Loopback base URL of the gateway in the UI process. */
    gatewayUrl: string;
    /** Absolute path to the built channel server entrypoint (dist/server.js). */
    serverPath: string;
    /** Absolute path to the node binary that runs the channel server. On darwin
     *  the launchd server PATH excludes an nvm node, so a bare `node` command
     *  fails to spawn and the channel never boots (Task 1402); callers pass the
     *  installer-resolved NODE_BIN. */
    nodeBin: string;
}
export interface WaChannelMcpServerEntry {
    command: string;
    args: string[];
    env: Record<string, string>;
}
export declare function buildWaChannelMcpServers(p: WaChannelMcpParams): Record<string, WaChannelMcpServerEntry>;
/** Argv that activates the channel server as a development channel. */
export declare function waChannelDevChannelsArgv(): string[];
/** Per-session mcp-config file path. The sessionId is sanitised to the
 *  filename-safe charset so a hostile/odd id can't escape `dir`. Pure — the
 *  caller writes the file. Shared by the gateway and resume paths so both
 *  produce the identical path. */
export declare function waChannelMcpConfigPath(sessionId: string, dir: string): string;
/** Full argv fragment that attaches + activates the channel server: the
 *  per-session `--mcp-config` followed by the development-channels flag. */
export declare function buildWaChannelArgv(mcpConfigPath: string): string[];
/**
 * True when accumulated child output contains the development-channels
 * confirmation prompt ("Loading development channels … Enter to confirm").
 * The prompt is rendered with cursor-position escapes and no literal spaces,
 * so match on the ANSI/space/punctuation-stripped letter stream rather than a
 * literal phrase. The manager sends one Enter to confirm when this returns
 * true, unblocking a programmatic spawn that cannot answer interactively.
 */
export declare function isDevChannelPrompt(rawOutput: string): boolean;
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