Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add mike-coulbourn/claude-vibes --skill brand-voice-developmentgit clone --depth 1 https://github.com/mike-coulbourn/claude-vibesWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/mike-coulbourn/claude-vibes/brand-voice-development)<a href="https://agentmods.dev/skills/mike-coulbourn/claude-vibes/brand-voice-development"><img src="https://agentmods.dev/badge/skills/mike-coulbourn/claude-vibes/brand-voice-development/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/mike-coulbourn/claude-vibes/brand-voice-development"><img src="https://agentmods.dev/badge/skills/mike-coulbourn/claude-vibes/brand-voice-development.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00071 | $0.02481 |
| Opus 5.5 | $0.00028 | $0.00992 |
| Sonnet 5.5 | $0.00014 | $0.00496 |
| Haiku 4.5 | $0.00007 | $0.00248 |
Grade A, and why
brand-voice-development scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 286 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Brand voice development framework
Quick reference for developing brand voice and verbal identity using established methodologies from voice strategists.
"You have the same voice all the time, but your tone changes. You might use one tone when you're out to dinner with your closest friends, and a different tone when you're in a meeting with your boss." — Mailchimp Content Style Guide
Key distinction: voice vs. tone
| Concept | Definition | Consistency |
|---|---|---|
| Voice | Brand's personality expressed through language | Always consistent |
| Tone | How voice adapts to different contexts | Varies by situation |
Analogy: you have the same voice whether talking to your boss or your friends, but your tone changes.
Core methodologies
1. Bloomstein's message architecture & BrandSort
Created by: Margot Bloomstein
The Process:
- Sort attribute cards into three piles:
- "Who you are" (current perception)
- "Who you'd like to be" (aspirational)
- "Who you're NOT" (actively rejected)
- Prioritize: From "who you'd like to be," create hierarchy of 8-12 attributes
- Unpack abstract terms: Make "innovative" or "trustworthy" concrete
- Content audit: Evaluate existing content against the architecture
Key Principle: balance user needs with brand identity, because being exclusively user-focused leads to bland sameness.
2. Nielsen Norman Group's four dimensions of tone
Research-backed framework for plotting voice position:
| Dimension | Spectrum | Example |
|---|---|---|
| Formality | Formal ←→ Casual | "We appreciate your inquiry" vs "Hey, good question!" |
| Humor | Serious ←→ Funny | Straightforward vs witty |
| Reverence | Respectful ←→ Irreverent | Traditional vs rule-breaking |
| Energy | Matter-of-fact ←→ Enthusiastic | Neutral vs excited |
Application:
- Plot intended position on each dimension
- A brand can be serious and casual (like a friendly financial advisor)
- Avoid landing exactly in the middle on all dimensions, which reads as generic
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago Changed · -47 tokens per session 43e340979bf5
- 1mo ago First seen · 286 lines · 118 tokens per session scan A 97bc16036dba
brand-voice-development is a skill published in the GitHub repository mike-coulbourn/claude-vibes (44 stars, last pushed 1mo ago), licensed MIT. It adds 71 tokens to every session and 2,481 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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