jason-fried-voice

jason-fried-voice is a skill for Claude Code from jpeslar1/john-peslar-ai-skills. It costs 178 tokens per session (3,310 once invoked), scanned A, original, MIT.

A writing guide based on Jason Fried’s published style and ideas. It describes how to write calm, plain-spoken essays about products, work, and bootstrapped businesses.

In plain words
What is it for?
Use it for company-manifesto writing, product-philosophy posts, and arguments for building profitable businesses without relying on investors.
Why use it?
It helps when your draft sounds noisy, rushed, or full of business jargon. It gives you a consistent way to make arguments in short, direct language.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the voice-dna plugin — 79 skills shipped together

Good fit Use it for company-manifesto writing, product-philosophy posts, and arguments for building profitable businesses without relying on investors.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jpeslar1/john-peslar-ai-skills/jason-fried-voice
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 jason-fried-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.

agentmods badge for jason-fried-voice

README.md
[![agentmods](https://agentmods.dev/badge/skills/jpeslar1/john-peslar-ai-skills/jason-fried-voice/github.svg)](https://agentmods.dev/skills/jpeslar1/john-peslar-ai-skills/jason-fried-voice)
Your own site
<a href="https://agentmods.dev/skills/jpeslar1/john-peslar-ai-skills/jason-fried-voice"><img src="https://agentmods.dev/badge/skills/jpeslar1/john-peslar-ai-skills/jason-fried-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.

agentmods 80×15 button for jason-fried-voice

Your own site · 80×15
<a href="https://agentmods.dev/skills/jpeslar1/john-peslar-ai-skills/jason-fried-voice"><img src="https://agentmods.dev/badge/skills/jpeslar1/john-peslar-ai-skills/jason-fried-voice.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 178 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,310 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00178 $0.03310
Opus 5.5 $0.00071 $0.01324
Sonnet 5.5 $0.00036 $0.00662
Haiku 4.5 $0.00018 $0.00331

Measured 18d ago against content hash f0d4f0030f85, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

jason-fried-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.

jason-fried-voice/SKILL.md · 164 lines

How it starts

The opening of the file, as written. The whole thing — 164 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Jason Fried Voice DNA

Jason Fried is the co-founder and CEO of 37signals (Basecamp, HEY, Once) and the plainest-spoken contrarian in software: profit over valuation, less over more, calm over ASAP, the work over the resume. His current voice lives in short essays on HEY World, each signed "-Jason", and in two decades of Signal v. Noise posts. The register is a complete declarative sentence followed by fragments, an analogy from a physical trade or domestic life (a bladesmith, a guitar, a restaurant kitchen), and a closing line that flips a cliche into an aphorism. Ground every output in references/voice-corpus.md (verbatim excerpts) and references/source-map.md (sources and refresh notes).

Voice DNA

Cadence and rhythm

  • Opens on a complete declarative thesis: "At its best, marketing is a transfer of enthusiasm." / "Business isn't something you learn in books."
  • Advances in fragments after the thesis: "Or posts. Or threads." / "A slice, yes. The whole pie, no." / "Not enough time. Not enough money. Not enough people. That's a good thing."
  • Paragraphs are 1-3 sentences; many are one line. Posts run 150-500 words. The long form (Signal v. Noise essays) runs 2,000-4,000 words as a bold-lead list.
  • Rhythm is spoken: contractions, "For serious?", "Echo, echo, echo…", questions answered immediately in the next sentence.
  • Imperative verbs close posts: "Go do." / "Always look at the work." / "Put it in the bank."

Hook patterns

  1. Settled-law thesis - one sentence stated as if it were already decided: "Certainty is a mirage." / "Everything is marketing." Deploy as line one of any post.
  2. The criticism, restated flatly - open by quoting the knock against you: "From time to time we get criticized for making 'yet another to-do list' product." Deploy to set up a trade analogy that dissolves the criticism.
  3. Trade analogy as the whole argument - "Hey master bladesmith, you've made a dozen knives this year. Same as last year… If you love metal so much, why not help build a battleship?" Deploy mid-post; the lesson is drawn in one short line after it.
  4. The reversed credential - swap a received hiring or business standard for its evidence-based twin: "Seek people with 'Years of evidence' instead." Deploy for hiring, process, and credential posts.
  5. The unsaid thing, said - "Most people don't like computers. Nobody in tech wants to say that out loud." Deploy to open a contrarian take against an industry consensus.
  6. Household regression - a domestic object that has gotten worse: a TV you "boot up," an app to clean peanut butter off a plate. Deploy to make an abstract product argument concrete.

Read the full file on GitHub · 164 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.

  1. 18d ago First seen · 164 lines · 178 tokens per session scan A f0d4f0030f85

Subscribe to this mod's changes

jason-fried-voice is a skill published in the GitHub repository jpeslar1/john-peslar-ai-skills (12 stars, last pushed 18d ago), licensed MIT. It adds 178 tokens to every session and 3,310 once invoked, about $0.0007 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 2026-10-19.

Related

jason-fried-voice compared with skills from other repositories

jason-fried-voice next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
jason-fried-voicejpeslar1/john-peslar-ai-skillsSkill1218d agoMITA178Claude Code
imagegenopenai/codexSkill133kyesterdayApache-2.0A113Codex
playwright-climicrosoft/playwrightSkill99kyesterdayApache-2.0A19Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginnersSkill79k4d agoMITA200Claude Code, Codex
systematic-debuggingobra/superpowersSkill313k3d agoMITA21Claude Code
next-cache-components-adoptionvercel/next.jsSkill143kyesterdayMITA95Claude Code
next-partial-prefetching-adoptionvercel/next.jsSkill143kyesterdayMITA103Claude Code