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Code Transfer

A skill that guides Claude to copy, move, and extract functions or classes between files with line-level precision.

Dev & CodingIntermediate★ 679⑂ 97AI score 8/10Last updated: Jul 25, 2026

What it does

  • Copies or moves code blocks (functions, classes, arbitrary line ranges) from one file to another.
  • Uses Read/Grep to pin down exact start/end lines, then inserts via the line_insert.py script or the Edit tool.
  • Basic mode for 1–10 files; execution mode with batch APIs for 10+ files to cut token usage.
  • Includes checklists for updating imports, preserving docstrings/indentation, --backup safety, and post-insert verification.

Who it's for

  • Developers splitting an overgrown utils.py into proper modules.
  • Anyone refactoring frequently and shuttling functions/classes across files.
  • Users who need code or logging inserted at an exact line number.

Examples

  1. "Move validate_user from auth.py to validators.py" → Grep locates it → extract → insert → fix imports on both sides.
  2. "Extract the DatabaseConnection class into database.py" → create new file, delete from original, add import.
  3. "Insert a log line at line 25 of main.py" → line_insert.py main.py 25 "logger.info('...')" --backup.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/mhattingpete/claude-skills-marketplace/HEAD/code-operations-plugin/skills/code-transfer/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the code-operations-plugin/skills/code-transfer folder from the GitHub repo mhattingpete/claude-skills-marketplace into my ~/.claude/skills/code-transfer/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/mhattingpete/claude-skills-marketplace.git && mkdir -p ~/.claude/skills && cp -r claude-skills-marketplace/code-operations-plugin/skills/code-transfer ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/mhattingpete/claude-skills-marketplace.git
  3. Create the skills folder: mkdir -p ~/.claude/skills
  4. Copy the skill: cp -r claude-skills-marketplace/code-operations-plugin/skills/code-transfer ~/.claude/skills/
  5. Confirm ~/.claude/skills/code-transfer/scripts/line_insert.py exists (if not, re-check the repo layout).
  6. Restart Claude Code and try a prompt like "move this function to another file" to confirm the skill triggers.
  7. For important files, commit to Git first or use the --backup flag.
View source on GitHub ↗License: Apache-2.0