claude-copilot: Skill for Claude Code

.claude/skills/copywriting/voice-tone/SKILL.md

voice-tone is a skill for Claude Code from Everyone-Needs-A-Copilot/claude-copilot. It costs 100 tokens per session (1,902 once invoked), scanned A, original, MIT.

A UX writing guide based on MailChimp's Voice and Tone framework, which keeps a product's personality consistent while adapting wording to the user's situation.

In plain words
What is it for?
Use it to choose wording for messages, buttons, and errors, and to avoid corporate, vague, or condescending language.
Why use it?
It helps make interface text clear and respectful, especially when users encounter errors or destructive actions.

Skill for Claude Code

Written for Claude Code: when-to-use in frontmatter. Also seen: reads .claude/ paths.

This is Everyone-Needs-A-Copilot/claude-copilot's own configuration. It tells Claude Code how to work on claude-copilot itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything claude-copilot configures →

Part of the claude-copilot plugin — 72 skills, 17 commands, 16 agents, 6 hooks shipped together

Reuse

Borrowing it

Nothing to install: this file belongs to Everyone-Needs-A-Copilot/claude-copilot. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Everyone-Needs-A-Copilot/claude-copilot/main/.claude/skills/copywriting/voice-tone/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Everyone-Needs-A-Copilot/claude-copilot

Made for: Claude Code.

Or install claude-copilot, the plugin that ships this one along with the rest of its 72 skills, 17 commands, 16 agents, 6 hooks.

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 voice-tone

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/everyone-needs-a-copilot/claude-copilot/voice-tone"><img src="https://agentmods.dev/badge/skills/everyone-needs-a-copilot/claude-copilot/voice-tone.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 100 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,902 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • medium Rogue Agent · line 40
    Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.
    Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
How audits are shown
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 $0.00100 $0.01902
Opus 5 $0.00050 $0.00951
Sonnet 5 $0.00020 $0.00380
Haiku 4.5 $0.00010 $0.00190

Measured 4d ago against content hash 55c084988a7c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

voice-tone 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 4d 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.

.claude/skills/copywriting/voice-tone/SKILL.md · 236 lines

How it starts

The opening of the file, as written. The whole thing — 236 lines — stays where its author put it; the contents beside it link to each section on GitHub.

MailChimp Voice & Tone Framework

Voice = constant personality (who we are). Tone = situational modulation (how we adapt to context).

Voice stays consistent. Tone shifts with user emotion and situation.


Voice Definition Template

Voice is consistent — it does not change. Tone changes by situation.

## [Product Name] Voice

We are [quality], but not [negative extreme].

Examples:
- We are **confident**, but not arrogant.
- We are **clear**, but not simplistic.
- We are **warm**, but not sycophantic.
- We are **direct**, but not blunt.
- We are **expert**, but not technical.

### Voice in Practice

| We say...               | We don't say...          |
|-------------------------|--------------------------|
| "Something went wrong"  | "An error has occurred"  |
| "Check your inbox"      | "A message has been sent to your registered email address" |
| "Delete account"        | "Terminate user profile" |
| "You're all caught up"  | "No unread notifications exist at this time" |

Tone Matrix

Map user situation to the correct tone before writing. Wrong tone in high-stakes moments (errors, destructive actions) damages trust.

Situation User Emotion Tone Example
Success Accomplished Warm, celebratory "You're all set! Your changes are live."
Error Frustrated Calm, helpful "Something went wrong. Here's what to try."
Onboarding Uncertain Encouraging, clear "Let's get you started. This takes about 2 minutes."
Destructive action Cautious Serious, specific "This will permanently delete 3 projects. This can't be undone."
Empty state Lost Guiding, optimistic "No results yet. Try adjusting your filters."
Loading/waiting Impatient Reassuring, brief "Almost there..."
Warning Cautious, uncertain Direct, non-alarmist, actionable "Your session expires in 5 minutes. Save your work."
Help text Uncertain Concise, example-driven "Use your full legal name as it appears on your ID."
Confirmation Seeking reassurance Specific, action-named, scannable "Delete 3 files? This cannot be undone."
Upgrade prompt Skeptical Value-led, non-pushy, honest "Get unlimited exports. Upgrade to Pro."

Read the full file on GitHub · 236 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. 4d ago First seen · 236 lines · 100 tokens per session scan A 55c084988a7c

Subscribe to this mod's changes

voice-tone is a skill published in the GitHub repository Everyone-Needs-A-Copilot/claude-copilot (13 stars, last pushed today), licensed MIT. It adds 100 tokens to every session and 1,902 once invoked, about $0.0005 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 2026-09-04.

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