Build inbox voice
Studies how you actually write and generates a drafter skill.
What you type
Run build-inbox-voice on these:
Type it into Claude or ChatGPT once the skill is switched on. The wording does not have to be exact.
- Category
- Voice
- Licence
- MIT
- Works with
- Gmail · Outlook · Apple Mail
What it does.
Free Claude skill that studies how you actually write and generates an inbox-reply-drafter skill. Every triage draft then sounds like you.
This one studies how you actually write, so your AI stops sounding like a chatbot. Give it a sample of your sent emails and it builds a drafter that inbox triage uses every morning.
How does AI learn to write emails in my voice?
The Build inbox voice skill studies a sample of your sent emails and generates a drafter so future replies sound like you. It reads only the sample you give it, then stops.
What does Build inbox voice produce?
It generates a drafter, a skill that writes email replies in your style, by studying the sample you give it. Once the drafter is created the skill stops; it does not keep reading your mail.
Installing it.
The skill is a folder of plain instructions your AI reads, so there is nothing to configure once it is switched on.
- 01 Download the folder
It is 6 KB of plain text and MIT-licensed, so you can read every instruction in it before you run anything.
- 02 Switch it on in your AI’s settings
Add it under Skills and turn it on. It works the same in Claude and ChatGPT, and you do not have to write any code.
- 03 Or install it from the command line
One line in a terminal does the same job:
npx @openkit/skills install build-inbox-voice
Is the Build inbox voice skill free?
Yes. It is free and MIT-licensed on GitHub, and no paid Claude plan is required. Skills work on the free, Pro, Max, Team and Enterprise plans.
How do I add this skill to Claude without coding?
Download it from GitHub and turn it on in your AI's settings under Skills. No coding is required, and it works the same in Claude and ChatGPT.
Running it.
Plain instructions your AI follows. There is nothing to code.
- 01 Pull a sample of sent emails
Copy 20 to 30 recent sent messages from Gmail, Outlook or Apple Mail. A mix of quick replies and longer emails works best.
- 02 Ask your AI to run it
Paste them into Claude and say "Run build-inbox-voice on these." It reads for tone, openings, sign-offs and the phrases you reach for.
- 03 It builds your drafter
The skill writes a drafter into your skills folder. Inbox triage picks it up on the next run, so the morning's drafts sound like you wrote them.
- 04 Refresh now and then
Once a quarter keeps it current. Run it again whenever your writing drifts or you want a fresher sample.
What it reads and what it writes.
- Reads
- The sample of sent emails you give it, and it stops reading once the drafter exists.
- Writes
- A drafter in your skills folder, which inbox triage picks up on its next run.
- Never
- It sends nothing at any point, and it does not keep reading your mail.
Will this skill read my whole inbox or send emails?
No. It reads only the sample of sent emails you provide, generates a drafting skill, and sends nothing. Nothing is sent or auto-sent at any point.
Where do my sample emails go, and does OpenKit see them?
The skill runs inside your own AI account and reads only the sample you paste in. OpenKit never receives your emails, and how the conversation is handled is governed by your own AI assistant privacy settings.
The rest of the toolkit.
This one is a setup rather than a daily tool. It writes the drafter the rest of the toolkit reads, so the replies sound like you wrote them.
Run it once, and the drafts sound like you.
Download the folder, switch it on in Claude or ChatGPT, and give it a sample of your sent mail. It builds the drafter the triage uses every morning.
When the work is bigger than a skill, start with an audit.