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 hamzafarooq/claude-code-starter --skill voice-dnagit clone --depth 1 https://github.com/hamzafarooq/claude-code-starterWrote 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/hamzafarooq/claude-code-starter/voice-dna)<a href="https://agentmods.dev/skills/hamzafarooq/claude-code-starter/voice-dna"><img src="https://agentmods.dev/badge/skills/hamzafarooq/claude-code-starter/voice-dna/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/hamzafarooq/claude-code-starter/voice-dna"><img src="https://agentmods.dev/badge/skills/hamzafarooq/claude-code-starter/voice-dna.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 | $0.00043 | $0.00343 |
| Opus 5.5 | $0.00017 | $0.00137 |
| Sonnet 5.5 | $0.00009 | $0.00069 |
| Haiku 4.5 | $0.00004 | $0.00034 |
Grade A, and why
voice-dna 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.
What it actually says
Ask the user to paste 3–5 samples of their writing (emails, posts, articles, anything they've written).
Analyze the samples and produce:
Voice DNA: [Name]
Tone
One sentence describing the overall register (e.g. "Direct and slightly irreverent — sounds like a senior colleague, not a textbook").
Sentence patterns
- Average length: [short / medium / long]
- Structure tendencies: [e.g. "leads with the point, explains after" or "builds to the punchline"]
- Punctuation style: [e.g. "uses em-dashes, avoids semicolons"]
Vocabulary fingerprint
- Words/phrases you use often: [list 5–8]
- Words/phrases you never use: [list 3–5]
- Formality level: [1–5, where 1 = casual text, 5 = legal brief]
What makes it yours
3 specific stylistic moves that show up across multiple samples. Be precise (e.g. "opens paragraphs with a counterintuitive claim" not "writes engagingly").
What to avoid
3 patterns that would immediately break the voice.
Prompt you can reuse
"Write in my voice: [paste the Voice DNA summary above]. The topic is: [X]."
At the end, ask: "Want me to test this by writing something in your voice right now?"
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 First seen · 37 lines · 43 tokens per session scan A 9e9f870cab6b
voice-dna is a skill published in the GitHub repository hamzafarooq/claude-code-starter (145 stars, last pushed 7d ago), licensed MIT. It adds 43 tokens to every session and 343 once invoked, about $0.0002 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 2026-09-03.
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