import type { AgentRuntimeSkillSource, DreamuxLogger } from '@excitedjs/dreamux-types';
import type { CodexWsClient } from './rpc.js';
export declare function applyCodexSkillExtraRoots(input: {
    client: CodexWsClient;
    sources: readonly AgentRuntimeSkillSource[];
    logger: DreamuxLogger;
}): Promise<void>;
/**
 * Classify an RPC rejection as a capability/version gap, not a genuine failure
 * of an existing method. The rpc layer drops JSON-RPC error codes, so this must
 * stay message-based and deliberately narrow.
 */
export declare function isUnsupportedRpcMethodError(err: unknown): boolean;
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