Function createGenericTextEditorTool

src/lib/generic-tools.ts:41–122

(
  readFile: (path: string) => Promise<string>,
  writeFile: (path: string, content: string) => Promise<void>,
)

 * Replicates the functionality of anthropic.tools.textEditor_20250728
 */
export function createGenericTextEditorTool(
  readFile: (path: string) => Promise<string>,
  writeFile: (path: string, content: string) => Promise<void>,
) {
  return tool({
    description: `Edit files using text editor commands. Supports viewing, creating, and modifying files.

Commands:
- view: Read a file or a specific range of lines
- create: Create a new file with content
- str_replace: Replace a string in a file

Use view_range as [start_line, end_line] to read specific sections.`,
    inputSchema: z.object({
      command: z
        .enum(["view", "create", "str_replace"])
        .describe("The editor command to execute"),
      path: z.string().describe("Path to the file"),
      file_text: z.string().optional().describe("Content for create command"),
      old_str: z
        .string()
        .optional()
        .describe("String to find for str_replace command"),
      new_str: z
        .string()
        .optional()
        .describe("String to replace with for str_replace command"),
      insert_line: z
        .number()
        .optional()
        .describe("Line number for insert operation (not commonly used)"),
      view_range: z
        .tuple([z.number(), z.number()])
        .optional()
        .describe("Range of lines to view [start, end]"),
    }),
    execute: async ({
      command,
      path,
      file_text,
      old_str,
      new_str,
      view_range,
    }) => {
      if (command === "view") {
        const content = await readFile(path);
        const lines = content.split("\n");

        if (view_range) {
          const [start, end] = view_range;
          const selectedLines = lines.slice(start - 1, end);
          return selectedLines.join("\n");
        }

        return content;
      }

      if (command === "create") {