What is justin-welsh-voice?

A writing guide based on Justin Welsh’s public style of calm, systems-focused solopreneur content. A solopreneur is someone who builds and runs a business largely alone; the guide emphasizes focus, leverage, and working on your own terms.

Use it to draft ghostwritten LinkedIn posts, posts for X, website copy, and newsletter essays. It helps shape short hooks, anecdotes, lists, and memorable two-sentence conclusions.

It helps produce concise business writing with a clear structure instead of vague motivational language. It is designed for a steady, practical voice that uses specific examples and numbers when supported.

justin-welsh-voice — Skill for Claude Code by jpeslar1

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 jpeslar1/john-peslar-ai-skills --skill justin-welsh-voice

Clone the repo

git clone --depth 1 https://github.com/jpeslar1/john-peslar-ai-skills

Made for: Claude Code.

Or install voice-dna, the plugin that ships this one along with the rest of its 79 skills.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/jpeslar1/john-peslar-ai-skills/justin-welsh-voice/github.svg)](https://agentmods.dev/skills/jpeslar1/john-peslar-ai-skills/justin-welsh-voice)

Your own site

<a href="https://agentmods.dev/skills/jpeslar1/john-peslar-ai-skills/justin-welsh-voice"><img src="https://agentmods.dev/badge/skills/jpeslar1/john-peslar-ai-skills/justin-welsh-voice/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/jpeslar1/john-peslar-ai-skills/justin-welsh-voice"><img src="https://agentmods.dev/badge/skills/jpeslar1/john-peslar-ai-skills/justin-welsh-voice.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 141 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,571 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.

Model	Per session	Once invoked
Fable 5.1	$0.00141	$0.02571
Opus 5.5	$0.00056	$0.01028
Sonnet 5.5	$0.00028	$0.00514
Haiku 4.5	$0.00014	$0.00257

Measured 18d ago against content hash 9789b5ee2547, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

justin-welsh-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 18d 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.

justin-welsh-voice/SKILL.md · 165 lines

How it starts

The opening of the file, as written. The whole thing — 165 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Justin Welsh Voice DNA

Justin Welsh is the archetypal calm solopreneur: a one-person business owner who writes short, systematic, anti-hustle content about leverage, focus, and building a life-first business. This voice hits a register of quiet authority, specific numbers, and tough-love optimism with zero guru bravado. Ground every output in references/voice-corpus.md (verbatim excerpts) and references/source-map.md (sources and refresh notes).

Voice DNA

Cadence and rhythm

Sentences run 8-18 words, with frequent 2-5 word fragments used as beats ("Why? No process.").
Paragraphs are 1-3 sentences on the website; on LinkedIn and X, one-line paragraphs dominate.
Pacing: setup in 1-2 short lines, then a list or a reversal, then a quotable two-liner.
Aphorisms arrive as two-sentence pairs: setup, then reversal ("The market doesn't reward the most talented people. It rewards talented people who are also visible.").

Hook patterns

In-media-res anecdote - drop into a scene mid-action: "The keys my employee had just thrown at me ricocheted off of my left shoulder."
"Most people" contrarian setup - "Most people think earning money is about creating a ceiling."
Confession-reversal - "I used to think growing a business meant adding a ton of complexity."
Familiar quote, then subverted - open with the Lincoln axe proverb, then argue "stop sharpening your axe."
Negation list - "Not funding. Not 24/7 hustling. Not even unique skills. It's..."
One-line tension teaser - "There's a brand new way to fail, and it's spreading fast."

Lexicon

Signature words: solopreneur, leverage, leverage points, one-person business, niche down, "go deep, not wide", process, system, playbook, moat, floor vs ceiling, "living and working on your own terms", "the internet is wild".
Register: plain, conversational, zero corporate jargon, zero profanity. Proof is flat, oddly specific numbers (44,716 followers, 158 residents, $15M), never adjectives.

Read the full file on GitHub · 165 lines

Files

What ships with it

2 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.

18d ago Changed · +141 tokens per session 9789b5ee2547
2mo ago First seen · 165 lines · 0 tokens per session scan A c14462bc4e35

Subscribe to this mod's changes

justin-welsh-voice is a skill published in the GitHub repository jpeslar1/john-peslar-ai-skills (12 stars, last pushed 18d ago), licensed MIT. It adds 141 tokens to every session and 2,571 once invoked, about $0.0006 per session on Opus 5.5. 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.

Marketing and SEO Writing and docs

justin-welsh-voice next to 6 skills from other repositories
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