import type { AgentTool } from '@earendil-works/pi-agent-core';
import type { ToolDefinition } from '@earendil-works/pi-coding-agent';
export type ApplyPatchEnvelopeError = {
    code: 'invalid_patch_envelope';
    field: 'patch';
    issue: 'missing_patch' | 'first_line' | 'control_line' | 'last_line';
    expected: string;
    received?: string;
    retryHint: string;
};
export declare function validateApplyPatchEnvelope(params: unknown): ApplyPatchEnvelopeError | null;
/** Map xopc {@link AgentTool} instances to pi-coding-agent {@link ToolDefinition}s for `createAgentSession`. */
export declare function xopcToolsToDefinitions(tools: AgentTool[]): ToolDefinition[];