import type { TaskContext, EntityType } from '../protocol.js';
/**
 * Full context containing all available context information.
 */
export interface FullContext {
    globalContext: string;
    projectContext: string;
    entityContext: string;
    symbols: ReadonlyMap<string, string>;
    taskTokens: Readonly<Record<string, string>>;
    combined: string;
}
/**
 * Context provider for unified access to different context levels.
 */
export declare class ContextProvider {
    private vaultRoot;
    private taskContext;
    private cache;
    private symbols;
    private cacheMaxAgeMs;
    constructor(vaultRoot: string, taskContext: TaskContext);
    /**
     * Create a context provider from the current environment.
     */
    static create(taskContext: TaskContext): Promise<ContextProvider>;
    /**
     * Initialize default symbols.
     */
    private initializeDefaultSymbols;
    /**
     * Get the global symbol table.
     */
    getGlobalSymbols(): ReadonlyMap<string, string>;
    /**
     * Get a single symbol value.
     */
    getSymbol(key: string): string | undefined;
    /**
     * Get the current task context.
     */
    getTaskContext(): TaskContext;
    /**
     * Get tokens from the task context.
     */
    getTaskTokens(): Readonly<Record<string, string>>;
    /**
     * Get global context from vault root.
     */
    getGlobalContext(): Promise<string>;
    /**
     * Get vault context from vault root .vault.md.
     */
    getVaultContext(): Promise<string>;
    /**
     * Get context for a specific entity type.
     */
    getEntityContext(entity: EntityType): Promise<string>;
    /**
     * Get the full context chain from root to entity.
     */
    getEntityContextChain(entity: EntityType): Promise<string>;
    /**
     * Get all relevant context for a task.
     */
    getFullContext(entity: EntityType): Promise<FullContext>;
    /**
     * Invalidate cache for a specific path or all cache.
     */
    invalidateCache(path?: string): void;
    /**
     * Get cached context or load it.
     */
    private getCachedContext;
}
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