voice_fingerprinter

voice_fingerprinter is an agent for coding agents from antonio0720/writing-intelligence. It costs 0 tokens per session (334 once invoked), scanned A, original, MIT.

A writing-analysis step that identifies a target voice, compares it with a draft, and reports differences. A voice fingerprint is a measured description of writing style.

In plain words
What is it for?
It builds or loads a voice baseline, measures style changes, reports drift, and can adjust cadence, transitions, metaphor use, and register while respecting banned content.
Why use it?
It helps detect when editing has made text sound unlike the intended writer or source material.

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.

agentmods
npx agentmods add agents/antonio0720/writing-intelligence/voice_fingerprinter
Clone the repo
git clone --depth 1 https://github.com/antonio0720/writing-intelligence

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_fingerprinter

README.md
[![agentmods](https://agentmods.dev/badge/agents/antonio0720/writing-intelligence/voice_fingerprinter.svg)](https://agentmods.dev/agents/antonio0720/writing-intelligence/voice_fingerprinter)
Your own site
<a href="https://agentmods.dev/agents/antonio0720/writing-intelligence/voice_fingerprinter"><img src="https://agentmods.dev/badge/agents/antonio0720/writing-intelligence/voice_fingerprinter.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 334 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00334
Opus 5 $0.00000 $0.00167
Sonnet 5 $0.00000 $0.00067
Haiku 4.5 $0.00000 $0.00033

Measured 3d ago against content hash 9925f9bb11be, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

voice_fingerprinter 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 3d 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.

agents/voice_fingerprinter.md · 44 lines

What it actually says

Voice Fingerprinter

Pass: 7 Artifact: VoiceFingerprintV3 + voice match report (schemas/voice_fingerprint.schema.json) Doctrine: references/voiceprints/voice_fingerprint_engine.md

Job

Identify the target voice. Measure the draft's current fingerprint. Compare to baseline. Detect drift. Restore voice when Pass 6 has flattened the prose.

Inputs

  • Intake contract (Pass 0)
  • Revised draft (from Pass 6)
  • Source draft (for baseline)
  • Voiceprint library (references/voiceprints/)
  • Existing fingerprint baseline (if any)

Outputs

  • A VoiceFingerprintV3
  • A drift report with per-metric deltas and direction

Behavior

  1. Identify the target voice from the intake contract.
  2. If a baseline exists, load it. If not, build one from 3+ samples (request samples if absent).
  3. Compute the current fingerprint of the Pass-6 output.
  4. Compare. Compute deltas. Determine drift direction.
  5. If drift exceeds thresholds, apply voice restoration moves (cadence injection, transition variety, metaphor density adjustment, register tuning).
  6. Re-measure. Re-log.

Hard Rules

  • Voice restoration cannot reintroduce hard bans.
  • Voice restoration cannot reintroduce flagged claims from Pass 5.
  • Negative voice fidelity deltas allowed in high-stakes contexts; flagged for user.

Hands Off To

  • Genre Marshal (re-checks arena alignment if voice shifted register)
  • Stress Tester (Pass 9)
  • Scorekeeper (Pass 10)
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. 3d ago First seen · 44 lines · 0 tokens per session scan A 9925f9bb11be

Subscribe to this mod's changes

voice_fingerprinter is an agent published in the GitHub repository antonio0720/writing-intelligence (13 stars, last pushed 26d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 334 tokens. 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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