backup-before-edit

Create automatic backup of files before any Edit operation for safety. This hook creates a timestamped backup copy (filename.backup.timestamp) of any existing file before Claude modifies it. Provides a safety net to recover previous…

Automations
Pre Tool
533

What it does and how to use it

A hook that automates pre tool actions at key moments (before/after a tool runs, on save, etc.), without you having to think about it.

Install the hook (command above).
It runs automatically on the defined events.
Adjust the rules in the settings file if you want to fine-tune it.

Install (Claude Code)

mkdir -p .claude/hooks && curl -fsSL https://doutorai.pt/data/lib/hooks__backup-before-edit.md -o .claude/hooks/backup-before-edit.json

Paste this command into the terminal, in your project folder, and the component installs automatically.

Content

{
  "description": "Create automatic backup of files before any Edit operation for safety. This hook creates a timestamped backup copy (filename.backup.timestamp) of any existing file before Claude modifies it. Provides a safety net to recover previous versions if needed. Only backs up existing files, includes error suppression to handle edge cases gracefully.",
  "hooks": {
    "PreToolUse": [
      {
        "matcher": "Edit",
        "hooks": [
          {
            "type": "command",
            "command": "if [[ -f \"$CLAUDE_TOOL_FILE_PATH\" ]]; then cp \"$CLAUDE_TOOL_FILE_PATH\" \"$CLA

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