import { type ToolDefinition } from "@earendil-works/pi-coding-agent";
/** Maximum UTF-8 size of the durable display diff plus unified patch. */
export declare const MAX_DURABLE_DIFF_BYTES: number;
/** Avoid retaining arbitrarily large previous files in the live-only store. */
export declare const MAX_COMPARABLE_WRITE_BYTES = 512000;
export declare const MAX_WRITE_METADATA_ENTRIES = 100;
export interface DurableWriteDetails {
    diff?: string;
    patch?: string;
    firstChangedLine?: number;
    diffUnavailableReason?: string;
}
/** Ephemeral execution metadata used by the live renderer. Never persisted as a before/after pair. */
export interface WriteExecutionMeta extends DurableWriteDetails {
    fileExistedBeforeWrite: boolean;
    previousContent?: string;
}
export declare class WriteExecutionMetadataStore {
    readonly entries: Map<string, WriteExecutionMeta>;
    set(toolCallId: string, metadata: WriteExecutionMeta): void;
    get(toolCallId: unknown): WriteExecutionMeta | undefined;
    delete(toolCallId: string): void;
    clear(): void;
}
type WriteParams = {
    path: string;
    content: string;
};
export declare function executeWriteWithMetadata(store: WriteExecutionMetadataStore, toolCallId: string, params: WriteParams, signal: AbortSignal | undefined, cwd: string): Promise<{
    content: Array<{
        type: "text";
        text: string;
    }>;
    details?: DurableWriteDetails;
}>;
/**
 * A session-local write definition. It retains Pi's public schema/description
 * and replaces only execution so the parent registry is never mutated.
 */
export declare function createTrackedWriteTool(cwd: string, store?: WriteExecutionMetadataStore): ToolDefinition<any, DurableWriteDetails>;
export {};
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