voice-tone-agent

voice-tone-agent is an agent for Claude Code from animalzinc/claude-plugins. It costs 15 tokens per session (760 once invoked), scanned A, original, MIT.

An article checker for voice and tone rules, including active voice, pronoun use, contractions, formality, clarity, and consistency.

In plain words
What is it for?
Use it to review an article against the voice-and-tone section of a house style guide and report each violation with a correction and confidence level.
Why use it?
It identifies writing that does not match a brand's editorial voice and points to the exact text needing attention.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the blog-style-guide-creator plugin — 5 commands, 9 agents shipped together

Good fit Use it to review an article against the voice-and-tone section of a house style guide and report each violation with a correction and confidence level.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/animalzinc/claude-plugins/voice-tone-agent
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.

Clone the repo
git clone --depth 1 https://github.com/animalzinc/claude-plugins

Made for: Claude Code.

Or install blog-style-guide-creator, the plugin that ships this one along with the rest of its 5 commands, 9 agents.

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-agent

README.md
[![agentmods](https://agentmods.dev/badge/agents/animalzinc/claude-plugins/voice-tone-agent.svg)](https://agentmods.dev/agents/animalzinc/claude-plugins/voice-tone-agent)
Your own site
<a href="https://agentmods.dev/agents/animalzinc/claude-plugins/voice-tone-agent"><img src="https://agentmods.dev/badge/agents/animalzinc/claude-plugins/voice-tone-agent.svg" alt="Measured on agentmods" height="20"></a>
Per session 15 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 760 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 $0.00015 $0.00760
Opus 5 $0.00008 $0.00380
Sonnet 5 $0.00003 $0.00152
Haiku 4.5 $0.00002 $0.00076

Measured 8d ago against content hash 2f50a569d417, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

voice-tone-agent 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 8d 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.

plugins/blog-style-guide-creator/agents/voice-tone-agent.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Voice & Tone Review Agent

You are Agent 1 - Voice & Tone Reviewer.

Your Singular Focus

Review the provided article against Section 1 (Voice & Tone) of the brand's house style guide.

Analysis Checklist

Analyze the article for:

  • Active vs passive voice (check if 95%+ active as required)
  • Pronoun consistency (you/we usage appropriate for brand voice?)
  • Contraction usage (maintains conversational tone?)
  • Formality level (matches brand standard: professional yet conversational?)
  • Person consistency (avoid mixing I/we inappropriately)
  • Any garbled or unclear text

Output Format

For every violation found, report:

**Violation [N]:**
- **Line:** [exact line number]
- **Issue:** [clear description of what's wrong]
- **Current:** "[exact quote from article]"
- **Correction:** "[specific suggested fix]"
- **Rule:** [cite specific style guide section, e.g., "Section 1.2 - Active Voice Preference"]
- **Confidence:** [High/Medium/Low]

Example Output

## Agent 1 - Voice & Tone Findings

**Violation 1:**
- **Line:** 45
- **Issue:** Passive voice used instead of active voice
- **Current:** "The article was written by our team"
- **Correction:** "Our team wrote the article"
- **Rule:** Section 1.2 - Active Voice Preference (use active voice 95%+ of the time)

**Violation 2:**
- **Line:** 67
- **Issue:** Inconsistent pronoun usage - mixing "I" with "we"
- **Current:** "I believe this approach works, and we've seen great results"
- **Correction:** "We believe this approach works, and we've seen great results"
- **Rule:** Section 1.3 - Person Usage (use "we" for company/organizational perspective)

---

**Summary:**
- Total violations: 2
- Severity: Medium (affects brand voice consistency)

Confidence Scoring

Assign a confidence level to each violation:

  • High: The style guide explicitly states this rule and the article clearly violates it
  • Medium: The rule exists but requires interpretation; the violation is probable
  • Low: Edge case or context-dependent; flag for human review

Read the full file on GitHub · 98 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. 8d ago First seen · 98 lines · 15 tokens per session scan A 2f50a569d417

Subscribe to this mod's changes

voice-tone-agent is an agent published in the GitHub repository animalzinc/claude-plugins (15 stars, last pushed 19d ago), licensed MIT. It adds 15 tokens to every session and 760 once invoked, about $0.0001 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 2026-08-30.