voice-fingerprint

voice-fingerprint is a skill for Claude Code, Codex from felipelobomotta-blip/book-genesis-v4. It costs 63 tokens per session (9,322 once invoked), scanned A, original, MIT.

A voice-planning document for a novel that defines the narrator’s style and how each character speaks, thinks, and reacts under pressure. It serves as a shared reference for later writing.

In plain words
What is it for?
Use it after creating the book’s character and chapter foundation, and before writing prose. It produces a voice specification with speech patterns, warnings, and example passages.
Why use it?
It helps keep characters distinct and prevents their dialogue and thoughts from sounding interchangeable. It gives the writing process consistent voice rules before drafting begins.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it after creating the book’s character and chapter foundation, and before writing prose. It produces a voice specification with speech patterns, warnings, and example passages.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/felipelobomotta-blip/book-genesis-v4/voice-fingerprint
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 felipelobomotta-blip/book-genesis-v4 --skill voice-fingerprint
Clone the repo
git clone --depth 1 https://github.com/felipelobomotta-blip/book-genesis-v4

Made for: Claude Code, Codex.

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-fingerprint

README.md
[![agentmods](https://agentmods.dev/badge/skills/felipelobomotta-blip/book-genesis-v4/voice-fingerprint/github.svg)](https://agentmods.dev/skills/felipelobomotta-blip/book-genesis-v4/voice-fingerprint)
Your own site
<a href="https://agentmods.dev/skills/felipelobomotta-blip/book-genesis-v4/voice-fingerprint"><img src="https://agentmods.dev/badge/skills/felipelobomotta-blip/book-genesis-v4/voice-fingerprint/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-fingerprint

Your own site · 80×15
<a href="https://agentmods.dev/skills/felipelobomotta-blip/book-genesis-v4/voice-fingerprint"><img src="https://agentmods.dev/badge/skills/felipelobomotta-blip/book-genesis-v4/voice-fingerprint.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 63 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,322 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 high

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 →

  • high Anti-Refusal · line 122
    Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.
    Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
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 $0.00063 $0.09322
Opus 5 $0.00032 $0.04661
Sonnet 5 $0.00013 $0.01864
Haiku 4.5 $0.00006 $0.00932

Measured 12d ago against content hash 3bf1df920176, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

voice-fingerprint 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.

legacy/skills/optional/voice-fingerprint/SKILL.md · 686 lines

How it starts

The opening of the file, as written. The whole thing — 686 lines — stays where its author put it; the contents beside it link to each section on GitHub.

VOICE FINGERPRINT — Voice DNA Generator (V3.7)

You are a voice architect. You take the narrative blueprint (foundation.md, outline.md) and produce a formal Voice DNA document so precise that a writer agent can pass the cover-the-name test on first draft. You do not write prose. You define how prose sounds.

The output is voice-dna.md, saved to the book's root directory alongside foundation.md and outline.md. It is the single source of truth for how every character sounds, thinks, and breaks.


PIPELINE POSITION

  • Runs AFTER: narrative-foundation (which produces foundation.md with character profiles, voice definition, voice-under-pressure specs, and outline.md with chapter structure)
  • Runs BEFORE: Any writing begins (prose-craft, chaos-engine, dialogue-polish, hook-craft)
  • Depends on: foundation.md (mandatory), outline.md (mandatory), STATE.yaml (mandatory), research/bestseller-dna.md (optional), voice-bank/ (optional — existing samples from author or reference material)

If foundation.md does not exist, STOP. Do not generate voice-dna.md from scratch. The narrative-foundation skill must run first. Voice comes from character — and characters live in foundation.md.


YOUR ROLE

You receive:

  1. foundation.md — Characters with chaos profiles, voice definition, voice-under-pressure specs
  2. outline.md — Chapter structure, emotional anchors, structural diversity requirements
  3. STATE.yaml — Project metadata, genre, scope
  4. Reference samples (optional) — Existing writing by the author or stylistic targets in voice-bank/ or reference/
  5. research/bestseller-dna.md (optional) — Prose analysis data (Flesch-Kincaid targets, adverb budgets, dialogue tag guidance)

You produce: voice-dna.md — a structured document that ALL downstream agents reference before writing or editing a single word.


BEFORE GENERATING

  1. Read STATE.yaml — Know the genre. Genre determines every calibration in this document.
  2. Read foundation.md completely — Especially Sections 3 (Characters), 6 (Voice Definition), 7 (Stylistic Device), and 8 (Opening Strategy).
  3. Read outline.md completely — Note which chapters feature which POV characters, where structural shifts happen, and where voice-under-pressure moments are planned.
  4. Read reference samples if they exist in voice-bank/ or reference/. These override your assumptions about vocabulary, rhythm, and register.
  5. Read research/bestseller-dna.md if it exists — Section 2 (Prose Rules) contains Flesch-Kincaid targets, adverb budgets, and dialogue tag guidance that constrain voice decisions.

Read the full file on GitHub · 686 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 · 686 lines · 63 tokens per session scan A 3bf1df920176

Subscribe to this mod's changes

voice-fingerprint is a skill published in the GitHub repository felipelobomotta-blip/book-genesis-v4 (114 stars, last pushed 7d ago), licensed MIT. It adds 63 tokens to every session and 9,322 once invoked, about $0.0003 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.

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