@justinechang39/maki/dist/core/langchain-tools.js

AI-powered CLI agent for file operations, CSV manipulation, todo management, and web content fetching using OpenRouter

import { DynamicTool } from 'langchain/tools';
import { toolImplementations, tools } from '../tools/index.js';
export const createLangChainTools = (setMessages, formatToolResult) => {
    return tools.map(tool => new DynamicTool({
        name: tool.function.name,
        description: tool.function.description,
        func: async (input) => {
            let args;
            try {
                args = typeof input === 'string' ? JSON.parse(input) : input;
            }
            catch {
                args = input;
            }
            // Show executing state in UI (keep real-time feedback)
            const toolId = `tool-${Date.now()}-${Math.random()}`;
            setMessages((prev) => [
                ...prev,
                {
                    role: 'assistant',
                    content: tool.function.name === 'think'
                        ? args.thoughts
                        : tool.function.name,
                    isToolExecution: true,
                    toolName: tool.function.name,
                    isProcessing: true,
                    id: toolId
                }
            ]);
            try {
                // Execute original tool implementation
                const result = await toolImplementations[tool.function.name](args);
                // Update UI with formatted result (keep custom formatting)
                setMessages((prev) => prev.map(msg => msg.id === toolId
                    ? {
                        role: 'assistant',
                        content: tool.function.name === 'think'
                            ? args.thoughts
                            : formatToolResult(tool.function.name, args, result),
                        isProcessing: false,
                        isToolResult: tool.function.name !== 'think',
                        isThinking: tool.function.name === 'think',
                        id: toolId
                    }
                    : msg));
                return JSON.stringify(result);
            }
            catch (error) {
                // Update UI with error (keep error formatting)
                setMessages((prev) => prev.map(msg => msg.id === toolId
                    ? {
                        role: 'assistant',
                        content: `❌ ${tool.function.name} failed: ${error.message}`,
                        isProcessing: false,
                        isToolResult: true,
                        id: toolId
                    }
                    : msg));
                throw error;
            }
        }
    }));
};