export type CapabilitySource = "builtin" | "mcp" | "skill" | "agent" | "workflow" | "plugin" | "shell" | "browser" | "connector";
export type CapabilityAvailability = "available" | "pending" | "failed" | "disabled" | "unknown";
export interface CapabilityRef {
    readonly id: string;
    readonly source: CapabilitySource;
    readonly name: string;
    readonly description?: string;
    readonly tags?: readonly string[];
    readonly availability: CapabilityAvailability;
    readonly schemaRef?: string;
    readonly schemaHash?: string;
    readonly provenance?: string;
}
export interface RuntimeCapabilitySnapshot {
    readonly sessionId: string;
    readonly generation: number;
    readonly host: {
        readonly adapter: string;
        readonly version?: string;
        readonly provider?: string;
        readonly model?: string;
    };
    readonly discovery: {
        readonly mode: "deferred" | "upfront" | "unsupported";
        readonly searchTool?: string;
        readonly waitTool?: string;
    };
    readonly capabilities: readonly CapabilityRef[];
    readonly mcpServers: readonly {
        readonly name: string;
        readonly status: "connected" | "cached" | "pending" | "failed" | "auth-required" | "disabled" | "unknown";
        readonly toolsKnown: boolean;
        readonly toolCount?: number;
        readonly lastErrorClass?: string;
    }[];
}
export declare function selectCapabilities(snapshot: RuntimeCapabilitySnapshot, intent: string): CapabilityRef[];
export declare class CapabilityRegistry {
    private snapshot;
    constructor(initial: RuntimeCapabilitySnapshot);
    get(): RuntimeCapabilitySnapshot;
    refresh(update: Omit<RuntimeCapabilitySnapshot, "generation">): RuntimeCapabilitySnapshot;
    invalidate(): void;
    select(intent: string): CapabilityRef[];
}
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