resonance-ops-voice

resonance-ops-voice is a skill for Claude Code, Codex from manusco/resonance. It costs 61 tokens per session (1,655 once invoked), scanned A, original, MIT.

A workflow for studying existing writing and turning it into a concise set of rules for how an AI should write. The profile can describe a person, brand, or fictional role and includes evidence-based examples and limits.

In plain words
What is it for?
Analyzing a writing corpus, documenting a personal or brand voice, defining character speech, and producing a portable voice profile for later copywriting.
Why use it?
It helps preserve a real writing style without relying on vague labels such as “friendly” or “professional.” The rules are based on observed text and are designed to change the agent's actual writing choices.

Skill for Claude CodeCodex

Part of the resonance plugin — 86 skills, 38 commands shipped together

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 skills/manusco/resonance/voice
Any agent
npx skills add manusco/resonance --skill voice
Clone the repo
git clone --depth 1 https://github.com/manusco/resonance

Made for: Claude Code, Codex.

Or install resonance, the plugin that ships this one along with the rest of its 86 skills, 38 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 resonance-ops-voice

README.md
[![agentmods](https://agentmods.dev/badge/skills/manusco/resonance/voice.svg)](https://agentmods.dev/skills/manusco/resonance/voice)
Your own site
<a href="https://agentmods.dev/skills/manusco/resonance/voice"><img src="https://agentmods.dev/badge/skills/manusco/resonance/voice.svg" alt="Measured on agentmods" height="20"></a>
Per session 61 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,655 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 $0.00061 $0.01655
Opus 5 $0.00030 $0.00827
Sonnet 5 $0.00012 $0.00331
Haiku 4.5 $0.00006 $0.00166

Measured 5d ago against content hash a033b7d0a464, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

resonance-ops-voice 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 5d 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/skills/ops/voice/SKILL.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/resonance-ops-voice: observe behavior, compile a voice profile

Role: forensic linguist and voice compiler. Input: A corpus of existing writing plus a subject type (Person, Brand, or Role/Character). Output: A compiled voice profile (about-me.md, brand-voice.md, or [name]-persona.md) under 5,000 tokens where every line changes how an AI writes. Definition of Done: Every line in the compiled file has a specific behavioral rule backed by text evidence. Generic statements, flattery, and values statements without behavioral evidence are cut. The file passes the Voice Test Protocol for the correct subject type.

You are a forensic linguist. You do not ask subjects to describe their voice. You read their writing and tell them what it is. People lie to themselves about how they sound. Text does not lie.

Hard Constraints:

  • One question at a time during the gap interview.
  • Never compile before the gap interview is complete.
  • Hard ceiling of 5,000 tokens on the compiled voice file.
  • Never ask what you can observe from the corpus.

Prerequisites (fail fast)

  • Subject type is confirmed: Person, Brand, or Role/Character.
  • A corpus is available (or a fallback has been agreed).

Algorithm

Copy this checklist and tick items as you go.

Phase A: Corpus Intake and Analysis

  1. Identify Subject Type: Before requesting anything, confirm: "Are we capturing a personal voice, a brand/company voice, or a designed character/persona?" This single answer determines the corpus request, analysis lens, gap interview track, and output filename. → verify: type confirmed.
  2. Request the corpus using the type-appropriate intake from the Extraction Protocol. → verify: corpus received.
  3. Analyze silently against the Text Analysis Dimensions (12 behavioral dimensions). Do not ask questions yet. → verify: silent analysis complete.
  4. Build the Fingerprint Report: 8-12 falsifiable hypotheses with specific evidence quotes. Cut anything generic. "Writes conversationally" is generic. "Uses sentence fragments after rhetorical questions: 7 instances in the corpus" is specific. → verify: at least 8 distinctive, specific observations.

Read the full file on GitHub · 107 lines

Files

What ships with it

8 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 5d ago First seen · 107 lines · 61 tokens per session scan A a033b7d0a464

Subscribe to this mod's changes

resonance-ops-voice is a skill published in the GitHub repository manusco/resonance (37 stars, last pushed yesterday), licensed MIT. It adds 61 tokens to every session and 1,655 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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