An AI humanizer for Claude

Claude writes a lot of text that goes out under your name: emails, commit messages, PR descriptions, replies to clients. reright is an MCP server that Claude calls before it uses that text. The text comes back without the typical signs of AI writing and closer to how you write, and the numbers, names and links are checked against what Claude wrote.

Claude Code

Paste the setup line from Settings into Claude Code. It installs the reright MCP server, adds a short rules text to your CLAUDE.md and adds a hook. From then on Claude sends its text to reright before it commits in a shared repo, opens a PR or sends a Gmail message, and uses what comes back.

The hook is what sets Claude Code apart from a chat app. It blocks git commits in shared repos, gh PR and issue text and Gmail sends whose text did not come back from reright. It runs on your machine, so you can switch it off, and the docs list what gets past it.

Claude.ai and Claude Desktop

Add reright as a custom connector with the server URL from Settings and sign in with your reright account. Claude gets the same tools. There is no hook in the browser, so Claude calls reright because its instructions ask it to. Connect from the cloud has the steps and a short instruction text to add to a Claude Project.

What Claude sends and what comes back

Claude sends only the words a person reads. Links, versions, file names and code stay as they are, and fixed text such as a PR template is kept out of the rewrite. Filler such as "I hope this email finds you well" comes out first. reright checks that the numbers, names, dates, links and code match, that each paragraph stays in its language, that no grammar mistake was added and that the length stays close. If a check fails, Claude gets its own text back. Claude then compares the rewrite with what it wrote and keeps its own text if the meaning changed.

Sounding like you

On the Your writing page you can bring in mail you sent from Gmail, your Google Docs, your GitHub commits and pull requests, or files. On Pro and Unlimited, reright trains a personal model on them and on your edits, one for each language you write in. On every plan, a greeting, sign-off or phrase you keep putting back stays as you wrote it. If you want to see each rewrite before Claude uses it, turn on "Check before it's used".

Connect Claude in a couple of minutes. The free plan needs no credit card.