---
title: edit - File Edit
description: Edit files via precise text replacement
---

Edit files via precise text replacement. If `oldText` is empty, appends to the end of the file.

## Dependencies

No extra dependencies, available by default.

## Parameters

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `path` | string | Yes | File path |
| `oldText` | string | Yes | Original text to replace (empty to append) |
| `newText` | string | Yes | Replacement text |

## Use Cases

- Modify specific parameters in configuration files
- Fix bugs in code
- Insert content at specific positions in files