brand-voice is agent-read markdown (skill) from cbrock84/headcount: Captures how a person or brand actually writes and turns it into reusable voice instructions every other content skill draws from. Use this before drafting any content for a new brand or client, when output keeps coming back sounding generic, when several writers need to sound like one, or when a voice needs defining without existing samples to learn from..
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
What the file says
# Brand voice
The upstream dependency for every writing skill. Draft before this exists and it comes back sounding
like everyone else.
## With existing samples
Collect ten to twenty real pieces the person considers representative — their best, not their most
recent. Then extract, with evidence:
- **Sentence rhythm** — average length, and whether they vary it deliberately. Most distinctive
voices are distinguished by rhythm before vocabulary.
- **Vocabulary tells** — the words they reach for and the register they avoid. Note both.
- **Opening moves** — how they start. Most writers have two or three habitual openings.
- **Stance** — do they assert, hedge, question, or provoke? Who do they assume the reader is?
- **Humor and its absence** — where it appears and where it never does.
- **Formatting habits** — paragraph length, list usage, emphasis.
Quote a real example for each. A voice guide with adjectives and no samples is unusable.
## Without samples
Build from a choice rather than a blank page. Offer archetypes — the practitioner showing their
work, the analyst, the contrarian, the teacher, the insider, the enthusiast — with a written
…
Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
A 17 of 17 checks passed. Deterministic, no model, same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (2734 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
cbrock84/headcount · 1,664 stars · license MIT · pushed 2026-09-17 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_wjcpbrkg2v32xveo
GET https://markdownregistry.com/api/v1/resolve?ref=cbrock84/headcount/brand-voice
GET https://markdownregistry.com/api/v1/blob/edb3ceb5d0bedf697db44136433d693188b379b89239ad8aa6fd902d2c2dc9d1
Your agent does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
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