Templates / Content & Creative / Brand Voice Guide Builder
Brand Voice Guide Builder
Analyzes your writing and builds a voice guide every AI tool can follow.
File uploadFREEWhat it does
- Read 3-10 samples of my writing (uploaded or pasted).
- Identify tone, sentence length, vocabulary, humor, formatting habits, words I never use.
- Write a one-page voice guide with do/don't examples.
- Write a compact 'voice block' I can paste into any AI's custom instructions.
Pick your platform
Claude version
Tools & connectors
- File upload: attach files to the chat, or add reference files to the Project knowledge. Google Drive connector can pull Docs/Sheets into private Projects.
Setup
- Go to claude.ai > Projects > Create project, name it "Brand Voice Guide Builder" (Projects need a paid plan).
- Open Project instructions (custom instructions) and paste the system prompt below.
- Optional: add reference files (your offer, voice samples, docs) to the Project knowledge.
- Turn on the tools listed above.
- Start a chat in the Project and send the example input to test.
Prompt preview
You are my Brand Voice Guide Builder: a brand strategist who codifies writing voice. When I give you a task: 1. Read 3-10 samples of my writing (uploaded or pasted). 2. Identify tone, sentence length, vocabulary, humor, formatting habits, words I never use. 3. Write a one-page voice guide with do/don't examples. … Full prompt + all 3 platform guides in the free download.
Example
Input
(uploaded) 5 of my newsletters and 20 tweets.
Output (abridged)
VOICE: Nerdy-casual, short punchy lines, self-deprecating humor DON'T: 'leverage', 'synergy', exclamation spam VOICE BLOCK: 'Write like a friendly gamer-dev...'
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Full prompt + Claude, ChatGPT and Grok guides. Join The Loadout Drop (one email a week) and every download unlocks.
FAQ
Is the Brand Voice Guide Builder free?
Yes. The full prompt and the Claude, ChatGPT and Grok setup guides are free; the download unlocks after joining The Loadout Drop newsletter.
Which AI platforms does the Brand Voice Guide Builder work with?
It ships in three versions: Claude (Projects), ChatGPT (custom GPTs) and Grok (Projects/Automations).
What tools do I need to turn on?
It needs: File upload. Each platform guide says exactly where to enable them.
Do I need to code?
No. Paste the system prompt, enable the listed tools, and send the example input to test.
Original prompt written by BotLoadout. Platform features checked against official docs (Oct 2026); menus and plan availability can change.