Ghostwriter — AI skill for Claude Code

👻 Ghostwriter

**Your AI does the work. Your name signs it.**

A skill for Claude Code — plus a portable rule block for every other AI coding agent — that stops the AI from crediting itself in your git history: no `Co-Authored-By` trailers, no "🤖 Generated with…" footers, no AI showing up in your repo's contributor list.

The problem

Most AI coding tools quietly append attribution to the commits they help with:

Co-Authored-By: Claude 

One trailer is all it takes. GitHub parses it and lists the AI as a **contributor** on your repository, and it stays there unless you rewrite history and force-push. Ghostwriter makes sure that never happens in the first place.

What's in this repo

File	What it is
`SKILL.md`	The skill itself (Agent Skills format) — rules, the reasoning behind them, and a self-check the AI runs before finishing any commit or PR
`assets/portable-rules.md`	A paste-anywhere rule block for other tools, with a table of where it goes for Cursor, Codex, Copilot, Gemini, and Windsurf

Install (Claude Code)

git clone https://github.com/cd-ndk/ghostwriter.git ~/.claude/skills/ghostwriter

That's it. The skill triggers automatically on any git or GitHub write operation — committing, amending, rebasing, opening PRs, tagging, releasing. You can also invoke it explicitly with `/ghostwriter`.

For a single project instead of globally, clone it into the repo's `.claude/skills/ghostwriter` directory.

Kill it at the source (recommended)

In Claude Code, the default `Co-Authored-By` trailer is injected by a setting — turn it off in `~/.claude/settings.json` so the skill never has to fight the default:

{
  "attribution": {
    "commit": "",
    "pr": ""
  },
  "includeCoAuthoredBy": false
}

`attribution` is the current setting (v2.0.62+); `includeCoAuthoredBy` covers older versions. The skill then handles everything the sett