/**
 * SDK feature toggles — per-adapter configuration for Claude Code features.
 *
 * Persisted to ~/.config/meridian/sdk-features.json.
 * Read at request time (no restart needed to pick up changes).
 */
export interface AdapterFeatures {
    /** Use the Claude Code system prompt preset (tool instructions, safety rules) */
    codeSystemPrompt: boolean;
    /** Include the client agent's system prompt (e.g. OpenCode/Crush instructions) */
    clientSystemPrompt: boolean;
    /** Load CLAUDE.md instruction files (off, project, full) */
    claudeMd: "off" | "project" | "full";
    /** Enable auto-memory (read + write across sessions) */
    memory: boolean;
    /** Enable background memory consolidation */
    dreaming: boolean;
    /** Default thinking mode (adaptive, enabled, disabled) */
    thinking: "adaptive" | "enabled" | "disabled";
    /** Forward thinking blocks to the client */
    thinkingPassthrough: boolean;
    /** Share memory directory with Claude Code (~/.claude instead of SDK default) */
    sharedMemory: boolean;
    /** Per-request cost cap in USD (0 = disabled) */
    maxBudgetUsd: number;
    /** Fallback model when primary fails (empty = disabled) */
    fallbackModel: string;
    /** Enable SDK debug logging to proxy stderr */
    sdkDebug: boolean;
    /** Comma-separated extra directories Claude can access (beyond CWD) */
    additionalDirectories: string;
}
export type FeatureConfig = Record<string, Partial<AdapterFeatures>>;
/**
 * Get resolved features for an adapter.
 * Priority: user config > adapter defaults > global defaults
 */
export declare function getFeaturesForAdapter(adapterName: string): AdapterFeatures;
/**
 * Get the full config for all adapters (for the settings UI).
 */
export declare function getAllFeatureConfigs(): Record<string, AdapterFeatures>;
/**
 * Validate and sanitise a partial feature update.
 * Returns only recognised keys with correct types; throws on invalid input.
 */
export declare function validateFeatureUpdate(raw: unknown): Partial<AdapterFeatures>;
/**
 * Update features for a specific adapter.
 */
export declare function updateAdapterFeatures(adapterName: string, features: Partial<AdapterFeatures>): void;
/**
 * Reset an adapter to its defaults (remove user overrides).
 */
export declare function resetAdapterFeatures(adapterName: string): void;
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