Bluefeather in Claude
Connect Bluefeather as a connector and Claude can measure drafts, read your voice profile, and check every rewrite against it. Same account as the web and ChatGPT.
Custom connectors need a Pro, Max, Team, or Enterprise plan on Claude.ai. Claude Code works on any plan.
I am thrilled to apply for this position. With a proven track record of delivering impactful results, I am confident that I would be a valuable addition to your team.
I'd like to apply. I've shipped three products in roles like this one, and I think I'd be useful to your team quickly.
Claude.ai and the Claude desktop app
Open connector settings
Click your name, then Settings, then Connectors. Choose Add custom connector.
Add the server
Name it Bluefeather and paste the address. Leave the OAuth client fields empty; Claude registers itself.
https://mcp.bluefeather.ai/mcp
Connect and sign in
Click Connect. A Bluefeather page opens; continue with Google or enter your email and password. That allows the connection.
Enable it in a chat
In the chat box, open the tools menu, turn on Bluefeather, and ask Claude to teach itself your voice or to rewrite a draft in it.
What Claude can do once connected
analyze_text | Scores a draft, underlines the tells, draws its writing web. | Reads only |
get_voice_profile | Returns how you write: rhythm, contractions, punctuation, favourite words, your type. | Reads only |
compare_to_voice | Overlays a draft on your web and lists what to change. | Reads only |
save_voice_sample | Stores a piece of your own writing in your account. | Writes |
list_voice_samples | Shows what you have saved, without the text. | Reads only |
delete_voice_sample | Removes one sample. The assistant asks first. | Deletes |
delete_all_voice_samples | Erases everything. The assistant asks first. | Deletes |
Claude asks before deleting anything. Analyze and compare store nothing.
Claude Code
Add it once from any terminal; the tools are then available in every session.
claude mcp add --transport http bluefeather https://mcp.bluefeather.ai/mcp
Then run /mcp, pick bluefeather, and sign in in the browser window that opens. Useful for READMEs, commit messages, docs, and anything else you would rather not ship sounding generic.
> Use bluefeather to check README.md against my voice and rewrite the intro
Things to say
Teach it your voice
“Teach Bluefeather my voice. Here are three emails I wrote: …”
Humanize
“@Bluefeather humanize this so it reads like a person wrote it”
Match your voice
“@Bluefeather rewrite this in my voice”
Tighten
“@Bluefeather tighten this to 120 words without losing the ask”
Check only
“@Bluefeather score this and tell me what gives it away”
Your type
“@Bluefeather what kind of writer am I?”
Questions
Is this the same as the ChatGPT plugin?
Same server, same account, same tools. ChatGPT also gets four packaged skills; in Claude you ask in plain words and Claude picks the tools.
Can my team use one connector?
Team and Enterprise admins can add it as an organization connector. Each person still signs in with their own email, so profiles stay personal.
Where does my text go?
To mcp.bluefeather.ai, on Cloudflare's network, where it is measured in memory. Only samples you ask to save are stored. Privacy.
How do I disconnect?
Remove the connector in Settings, or run claude mcp remove bluefeather. Your samples stay until you delete them.
Your writing web, in Claude
Every analysis and comparison returns the six axes, so Claude can tell you “this draft is flatter and more formal than you” and fix exactly that.