tone-of-voice-writer

tone-of-voice-writer is a skill for Claude Code from kkarpushin/tone-of-voice. It costs 128 tokens per session (1,080 once invoked), scanned A, original, MIT.

A writing tool that imitates a particular author's style using a previously created voice profile. It checks the draft against that profile before returning it.

In plain words
What is it for?
Use it to draft posts, emails, articles, or replies in a known author's voice, when a voice profile is available.
Why use it?
It avoids having to recreate someone's tone from memory and flags wording that does not match the profile.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the AskUserQuestion tool.

Good fit Use it to draft posts, emails, articles, or replies in a known author's voice, when a voice profile is available.

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Install with agentmods
npx agentmods add skills/kkarpushin/tone-of-voice/tone-of-voice-writer
Install

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.

Any agent
npx skills add kkarpushin/tone-of-voice --skill tone-of-voice-writer
Clone the repo
git clone --depth 1 https://github.com/kkarpushin/tone-of-voice

Made for: Claude Code.

Wrote 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.

agentmods badge for tone-of-voice-writer

README.md
[![agentmods](https://agentmods.dev/badge/skills/kkarpushin/tone-of-voice/tone-of-voice-writer/github.svg)](https://agentmods.dev/skills/kkarpushin/tone-of-voice/tone-of-voice-writer)
Your own site
<a href="https://agentmods.dev/skills/kkarpushin/tone-of-voice/tone-of-voice-writer"><img src="https://agentmods.dev/badge/skills/kkarpushin/tone-of-voice/tone-of-voice-writer/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.

agentmods 80×15 button for tone-of-voice-writer

Your own site · 80×15
<a href="https://agentmods.dev/skills/kkarpushin/tone-of-voice/tone-of-voice-writer"><img src="https://agentmods.dev/badge/skills/kkarpushin/tone-of-voice/tone-of-voice-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 128 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,080 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00128 $0.01080
Opus 5 $0.00064 $0.00540
Sonnet 5 $0.00026 $0.00216
Haiku 4.5 $0.00013 $0.00108

Measured 12d ago against content hash 50e1698b9d1f, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

tone-of-voice-writer 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 12d 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.

tone-of-voice-writer/SKILL.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tone of Voice Writer

You write texts in a voice previously captured by tone-of-voice-analyzer. Your job is not to write well in general — it is to write as this specific author would, including their flaws, quirks, and limits.

STEP 1 — Locate the profile

  • If the user gave a path — use it.
  • Otherwise search: Glob **/tone-of-voice/*/profile.md. Several found → ask which (AskUserQuestion). None found → say a profile is needed first and offer to run tone-of-voice-analyzer.

STEP 2 — Clarify the brief

Before drafting, know all of:

  • Format & platform (LinkedIn post, email, article, Telegram reply…) — platform norms interact with voice.
  • Audience & context — map to a row of the profile's §8 context matrix (celebrating / problem / teaching / selling / …). If the context isn't in the matrix, pick the nearest row and say so.
  • Topic, key message, target length.
  • Target language. If the profile has no lexical code for that language (§4), warn: the voice is unprofiled in this language; extrapolate register and syntax but invent no pet words; flag the result as low-confidence.

Ask only for what's missing — one AskUserQuestion round, not an interview.

STEP 3 — Load the voice

From profile.md take, in priority order:

  1. §11 Machine block — the condensed identity; treat as your system instruction.
  2. §4 Lexical code for the target language — signature words to draw from (naturally, not as a checklist), and the never use list as hard bans.
  3. §8 Context matrix — the row matching the brief.
  4. §9 Do/Don't and §5 Syntactic DNA (sentence-length numbers are targets, not decoration).

STEP 4 — Draft

Write the text. Signature devices and pet words appear where the author would use them — a voice is a distribution, not a stamp; do not cram every marker into every paragraph.

STEP 5 — Verify before delivering (mandatory)

  1. Ban check (mechanical). Grep the draft for every item in the profile's never use list. Any hit → rewrite that spot.
  2. Metric check. If the analyzer's script is available, run it on the draft:
    python3 <analyzer-skill-dir>/scripts/metrics.py draft.md
    
    Compare sentence-length mean/mix, punctuation, and emoji/CAPS rates against the profile's §5/§7 numbers. Outside the author's typical range → adjust. (Short drafts are noisy — compare patterns, not decimals.)
  3. Do/Don't pass. Reread the draft against each §9 pair.
  4. Overshoot check. Verify against every attribute's "But not:" — imitation most often fails by exaggeration (a "direct" voice becomes rude, a "warm" one becomes saccharine).

Read the full file on GitHub · 80 lines

Changes

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.

  1. 12d ago First seen · 80 lines · 128 tokens per session scan A 50e1698b9d1f

Subscribe to this mod's changes

tone-of-voice-writer is a skill published in the GitHub repository kkarpushin/tone-of-voice (5 stars, last pushed 18d ago), licensed MIT. It adds 128 tokens to every session and 1,080 once invoked, about $0.0006 per session on Opus 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.