import type { ToolCall, ToolResult } from './tools.js';
export type MessageRole = 'system' | 'developer' | 'user' | 'assistant' | 'tool';
export interface TextContentPart {
    type: 'text';
    text: string;
}
export interface ImageContentPart {
    type: 'image';
    mediaType?: string;
    data?: string;
    url?: string;
}
export interface FileContentPart {
    type: 'file';
    mediaType?: string;
    data?: string;
    url?: string;
    filename?: string;
}
/** Provider-originated reasoning history that may carry a replay signature. */
export interface ReasoningContentPart {
    type: 'reasoning';
    text: string;
    signature?: string;
    redacted?: boolean;
}
export type MessageContent = string | readonly (TextContentPart | ImageContentPart | FileContentPart | ReasoningContentPart)[];
export interface BaseMessage {
    role: MessageRole;
    content: MessageContent;
    name?: string;
    metadata?: Record<string, unknown>;
}
export interface AssistantMessage extends BaseMessage {
    role: 'assistant';
    toolCalls?: readonly ToolCall[];
}
export interface ToolMessage extends BaseMessage {
    role: 'tool';
    toolResult: ToolResult;
}
export type LlmMeshMessage = (BaseMessage & {
    role: 'system' | 'developer' | 'user';
}) | AssistantMessage | ToolMessage;
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