voice-checker

voice-checker is a skill for Claude Code from reluctantfuturist/loyal-wingman. It costs 35 tokens per session (1,580 once invoked), scanned A, original, MIT.

A writing check that compares a scene's narration and dialogue with stored character voice descriptions. It considers the viewpoint character and every character who speaks.

In plain words
What is it for?
It is for checking voice consistency in scenes, especially when a writer asks whether a character sounds right or before a scene is marked final.
Why use it?
It helps catch dialogue or inner narration that sounds unlike the character who is supposed to be speaking or thinking.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Part of the loyal-wingman plugin — 12 skills, 7 commands shipped together

Good fit It is for checking voice consistency in scenes, especially when a writer asks whether a character sounds right or before a scene is marked final.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/reluctantfuturist/loyal-wingman/voice-checker
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 reluctantfuturist/loyal-wingman --skill voice-checker
Clone the repo
git clone --depth 1 https://github.com/reluctantfuturist/loyal-wingman

Made for: Claude Code.

Or install loyal-wingman, the plugin that ships this one along with the rest of its 12 skills, 7 commands.

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-checker

README.md
[![agentmods](https://agentmods.dev/badge/skills/reluctantfuturist/loyal-wingman/voice-checker/github.svg)](https://agentmods.dev/skills/reluctantfuturist/loyal-wingman/voice-checker)
Your own site
<a href="https://agentmods.dev/skills/reluctantfuturist/loyal-wingman/voice-checker"><img src="https://agentmods.dev/badge/skills/reluctantfuturist/loyal-wingman/voice-checker/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-checker

Your own site · 80×15
<a href="https://agentmods.dev/skills/reluctantfuturist/loyal-wingman/voice-checker"><img src="https://agentmods.dev/badge/skills/reluctantfuturist/loyal-wingman/voice-checker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,580 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 $0.00035 $0.01580
Opus 5 $0.00017 $0.00790
Sonnet 5 $0.00007 $0.00316
Haiku 4.5 $0.00003 $0.00158

Measured 12d ago against content hash 08ddd9ed2456, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

voice-checker 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.

skills/voice-checker/SKILL.md · 216 lines

How it starts

The opening of the file, as written. The whole thing — 216 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Voice Checker

Check prose against character voice capsules for all speaking characters in a scene.

The Iron Law

EVERY CHARACTER HAS A VOICE. Load capsules for all speakers. Check POV internal + all dialogue.

When to Use

  • Called by prose-editor (Phase 3)
  • Called by writing-mode for voice spot-check
  • "check voice" / "voice consistency" / "does this sound like [character]?"
  • Before marking scene as final
  • When dialogue feels off

Scene Requirements

Scenes should include pov_character in frontmatter:

---
title: Scene Title
pov_character: Character Name
---

The character name should match the filename (without .md) in 02_World/Characters/.

The Process

Phase 1: Identify Characters in Scene

  1. Read scene file completely
  2. Identify POV character from frontmatter (pov_character field) or narration style
  3. Scan for all characters with dialogue (look for dialogue tags, speech patterns)
  4. Build character list: [POV, Speaker1, Speaker2, ...]

If no pov_character in frontmatter:

  • Infer from third-person limited narration
  • Or ask user: "Who is the POV character for this scene?"

Phase 2: Load Voice Capsules

For each character identified:

  1. Search 02_World/Characters/ for matching file
  2. Load the ## Voice section if present
  3. Track which characters have capsules vs missing

Report loading status:

Voice capsules loaded:
✓ [Character A] - full capsule
✓ [Character B] - full capsule
⚠ [Character C] - no Voice section (will skip)
✗ [Character D] - no character file found

Continue with available capsules. Missing capsules = skipped, not failed.

Phase 3: Check POV Character

Internal Narration (only POV character has this):

  • Does thinking style match Internal.Style?
  • Are Internal.Markers present naturally? (not forced)
  • Any violations of Internal.Never? → CRITICAL

POV Character Dialogue:

  • Apply same dialogue checks as other characters (see Phase 4)

Phase 4: Check All Dialogue

Read the full file on GitHub · 216 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 · 216 lines · 35 tokens per session scan A 08ddd9ed2456

Subscribe to this mod's changes

voice-checker is a skill published in the GitHub repository reluctantfuturist/loyal-wingman (7 stars, last pushed 8mo ago), licensed MIT. It adds 35 tokens to every session and 1,580 once invoked, about $0.0002 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.

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