/**
 * Shared Anthropic API credentials.
 *
 * Three tiers, highest priority first:
 *   1. Per-agent bundle (`credentialBundle.body.llm` for Anthropic) —
 *      delivered by the heartbeat. Authoritative when present.
 *   2. Shared in-memory heartbeat cache (`sharedKeys.anthropicApiKey`).
 *   3. Local `config.anthropicApiKey` — manual or per-agent persisted
 *      fallback used when the higher-priority runtime tiers are unavailable.
 *      The heartbeat shared-keys path seeds this on first delivery but
 *      never overwrites an existing value.
 *
 * This mirrors `gemini-credentials.ts` / `phonecall-credentials.ts`.
 */
import type { VisionClawConfig } from "./config/types.js";
export declare function setBundleAnthropicApiKey(apiKey: string | undefined): boolean;
export declare function setSharedAnthropicApiKey(apiKey: string | undefined): boolean;
/**
 * Resolve the Anthropic API key to use.
 *
 * Precedence: per-agent bundle > shared cache > local config (offline cache).
 */
export declare function resolveAnthropicApiKey(config: VisionClawConfig): string | undefined;
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