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Get Started Free →Use when producing a brand voice profile from a company's content: emit the fixed Brand Voice Profile template, not free-form analysis.
.claude/skills/brand-voice-profile/SKILL.md| Model | Eval pass | Runs |
|---|---|---|
| gemini-3.6-flash | 100% | 4 |
| Model | Lift | Δ tokens | Δ turns | Cases | Verified |
|---|---|---|---|---|---|
| gemini-3.5-flashbest | +96% | — | 0% | 24 | 86d ago |
| gemini-3.6-flash | +77% | +125% | 0% | 22 | 53d ago |
| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-19 | ✗→✓ | ▲ Improved | — | — |
| case-22 | ✗→✓ | ▲ Improved | — | — |
| case-02 | ✗→✓ | ▲ Improved | — | — |
| case-17 | ✗→✓ | ▲ Improved | — | — |
| case-03 | ✗→✓ | ▲ Improved | — | — |
When asked to analyze, extract, or document a company's brand voice from its content, emit a Markdown document in EXACTLY the fixed Brand Voice Profile template below — fixed section names, fixed order, fixed table shape, fixed labels. Apply whenever the deliverable is a voice/tone profile, guide, or reference a writer will follow. Never answer with free-form prose analysis.
R1 — Title. First line is exactly # Brand Voice Profile: <Company Name>. Use the company name verbatim, including punctuation (Atlas Moving Co., Kettle & Co, Sprout & Spore).
R2 — Metadata block. Immediately under the title, two lines:
**Analyzed:** <date> | **Content pieces analyzed:** <N> (a real count, not a range)**Sources:** <list of the analyzed pieces>R3 — Exactly six ## sections, in THIS order, with THESE exact names:
## Voice Summary## Tone Profile## Language & Vocabulary## Structure & Formatting## Audience & Persona## Writing Guidelines (Actionable)Do not add, drop, rename, reorder, or merge sections. The parenthetical (Actionable) is part of the sixth heading.
R4 — Voice Summary. 2 to 3 sentences only. No bullets, no subsections.
R5 — Tone Profile is a Markdown table. Columns are exactly, in order: Dimension | Position | Evidence. The table has exactly these five rows, in this order: Formality, Emotional Register, Authority, Humor, Directness. No extra rows, no missing rows, no renamed dimensions.
R6 — Positions are word spectrums, never numbers. Each Position cell is a descriptor on a verbal spectrum (e.g. Casual ↔ Professional ↔ Academic, Measured, occasionally excited). Never a numeric score, a 1–10 rating, or stars.
R7 — Language & Vocabulary subsections. Five ### subsections, in this order: Reading Level, Signature Phrases, Jargon & Technical Depth, Words They Love, Words They Avoid.
R8 — Use the labels verbatim. Words They Love and Words They Avoid are literal. Do not substitute Preferred words, Words to use, Avoided words, or any synonym.
R9 — Audience & Persona includes Point of View. This section must contain a Point of View subsection identifying I / we / you / third-person usage.
R10 — Writing Guidelines block. ## Writing Guidelines (Actionable) contains, in order, a ### Do list, a ### Don't list, and a ### Voice Samples block. The Voice Samples block has two verbatim-labeled parts: **Their style:** (real quotes from their content) and **How to match it:** (new sentences written in their voice on a neutral topic).
R1 title. BEFORE: # Brand Voice Analysis for Acme or ## Acme Voice Guide AFTER: # Brand Voice Profile: Acme Robotics
R2 metadata. BEFORE: (jumps straight from title into prose) AFTER:
# Brand Voice Profile: Acme Robotics
**Analyzed:** 2026-06-26 | **Content pieces analyzed:** 14
**Sources:** acme.com/blog/scaling, acme.com/customers/northwind, ...R3 / R4 section set + Voice Summary. BEFORE: ## Overview\nAcme's tone is friendly and confident across a few paragraphs... AFTER: ## Voice Summary\nAcme writes in a confident, peer-to-peer voice for working engineers. It assumes deep technical fluency and favors short, declarative claims over hedging.
R5 Tone Profile shape. BEFORE:
Tone: friendly, professional, a bit playful, authoritative.AFTER:
## Tone Profile
| Dimension | Position | Evidence |
|-----------|----------|----------|
| Formality | Professional-casual | "Let's just ship it." |
| Emotional Register | Measured, occasionally excited | "We were genuinely floored." |
| Authority | Expert/teacher | "Here's what most teams get wrong." |
| Humor | Rare, dry | "Yes, it's another dashboard." |
| Directness | Very direct, bold claims | "This is the fastest path. Full stop." |R6 positions. BEFORE: | Formality | 7/10 | ... | AFTER: | Formality | Casual ↔ Professional (leans professional) | ... |
R7 / R8 vocabulary labels. BEFORE: ### Preferred Words ... ### Words to Avoid AFTER: ### Words They Love ... ### Words They Avoid
R9 Point of View. BEFORE: (Audience section only describes the reader, omits POV) AFTER:
## Audience & Persona
### Point of View
First-person plural ("we") for the brand, second person ("you") for the reader — a peer-to-peer relationship, not institutional.R10 Voice Samples. BEFORE: Example sentences: ... (one undivided list) AFTER:
### Voice Samples
**Their style:**
> "You don't need a bigger team. You need a tighter loop."
**How to match it:**
> Stop adding headcount to a process that's leaking time. Fix the loop first.honestly (Content pieces analyzed: 4) and note low confidence inside Voice Summary — do not drop sections for lack of material.
write (no clear signal) in the Evidence cell. Never delete one of the five rows.
with the dominant position per row; note the split in Structure & Formatting or Voice Summary. Do not add a second Tone table or extra rows.
Kettle & Co, Atlas Moving Co.).Reproduce it exactly in the title; do not normalize or strip it.
template — the profile IS the guide. Do not switch to prose.
**Their style:** should paraphrase closely andflag it; never fabricate a verbatim quote. **How to match it:** is always new original sentences in their voice.
## Introduction,## Methodology, or ## Conclusion.
paragraph or a bullet list.
Words They Love / Words They Avoid verbatim. DON'Trephrase them.
**Their style:** and **How to match it:**.DON'T merge them into one block.
Point of View subsection. DON'T fold POV into a sentence elsewhereand skip the subsection.
## Overview, ## Tone, ## Vocabulary,## Recommendations) instead of the exact six names.
8/10) instead of word spectrums.Dimension | Position | Evidence table.Preferred Words, Avoid List) instead of the literal ones.Point of View subsection.**Their style:** + **How to match it:**.Content pieces analyzed: + Sources).# Brand Voice Profile: <Company> title + metadata + Sources lineDimension | Position | Evidence, five rows in orderWords They Love / Words They AvoidPoint of View subsection### Do, ### Don't, ### Voice Samples split into**Their style:** and **How to match it:**
| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-19 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-22 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-02 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-17 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-05 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-03 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-12 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-11 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-09 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-01 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-10 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-18 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-06 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-20 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-04 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-07 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-08 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-13 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-14 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-15 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-16 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-21 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
DecimalAI ran this skill against gemini-3.5-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +77 percentage points is the difference between those two pass rates over the 22 comparable cases.
The per-case answers from this run were removed by the retention sweep, so the case table below shows the verdicts without the text either arm produced. The counts above were recorded at the time and are unaffected. Answers are now kept for 180 days.
| Model | Method | Date | Lift |
|---|---|---|---|
| gemini-3.5-flash | verified | 6/27/2026 | +96% |
Other measured skills in the registry, with their headline benchmark lift.