hataraku/dist/esm/core/tools/read-file.js

An autonomous coding agent for building AI-powered development tools. The name "Hataraku" (働く) means "to work" in Japanese.

import { z } from 'zod';
import * as fs from 'fs/promises';
import * as path from 'path';
export const readFileTool = {
    description: "Read the contents of a file at the specified path. Returns the file content with line numbers prefixed to each line.",
    parameters: z.object({
        path: z.string().describe('The path of the file to read (relative to the current working directory)')
    }),
    execute: async ({ path: filePath }) => {
        try {
            const absolutePath = path.resolve(process.cwd(), filePath);
            // Check if file exists
            try {
                await fs.access(absolutePath);
            }
            catch {
                return {
                    isError: true,
                    content: [{
                            type: "text",
                            text: `File not found at path: ${filePath}`
                        }]
                };
            }
            // Read file content
            const content = await fs.readFile(absolutePath, 'utf-8');
            // Handle empty files
            if (!content.trim()) {
                return {
                    content: [{
                            type: "text",
                            text: ""
                        }]
                };
            }
            // Add line numbers
            const numberedLines = content.split('\n').map((line, index) => `${index + 1} | ${line}`).join('\n');
            return {
                content: [{
                        type: "text",
                        text: numberedLines
                    }]
            };
        }
        catch (error) {
            const errorMessage = error instanceof Error ? error.message : String(error);
            return {
                isError: true,
                content: [{
                        type: "text",
                        text: `Error reading file: ${errorMessage}`
                    }]
            };
        }
    }
};
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