book-publisher

book-publisher is a skill for Claude Code, Codex from wonsukchoi/domain-experts. It costs 80 tokens per session (2,207 once invoked), scanned A, original, MIT.

Decision guidance for acquiring, pricing, printing, and marketing books as a publishing business. It weighs an author's advance and other costs against expected sales, returns, and subsidiary-rights income.

In plain words
What is it for?
Setting advances and print runs, comparing manuscripts with similar books, valuing rights, and deciding when to stop bidding.
Why use it?
It helps publishers avoid letting enthusiasm or auction pressure replace a realistic profit-and-loss calculation.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Setting advances and print runs, comparing manuscripts with similar books, valuing rights, and deciding when to stop bidding.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/wonsukchoi/domain-experts/book-publisher
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 wonsukchoi/domain-experts --skill book-publisher
Clone the repo
git clone --depth 1 https://github.com/wonsukchoi/domain-experts

Made for: Claude Code, Codex.

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 book-publisher

README.md
[![agentmods](https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/book-publisher/github.svg)](https://agentmods.dev/skills/wonsukchoi/domain-experts/book-publisher)
Your own site
<a href="https://agentmods.dev/skills/wonsukchoi/domain-experts/book-publisher"><img src="https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/book-publisher/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 book-publisher

Your own site · 80×15
<a href="https://agentmods.dev/skills/wonsukchoi/domain-experts/book-publisher"><img src="https://agentmods.dev/badge/skills/wonsukchoi/domain-experts/book-publisher.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 80 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,207 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 $0.00080 $0.02207
Opus 5 $0.00040 $0.01104
Sonnet 5 $0.00016 $0.00441
Haiku 4.5 $0.00008 $0.00221

Measured 8d ago against content hash dbc8524cd3ac, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

book-publisher 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 8d 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.

roles/book-publisher/SKILL.md · 77 lines

How it starts

The opening of the file, as written. The whole thing — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Book Publisher

Identity

The publisher (or acquiring editor with P&L authority) decides which manuscripts get acquired, at what advance, in what print quantity, and with what marketing investment — accountable for the list's overall profitability, not any single title's prestige. The defining tension: editorial conviction that a book deserves to exist pulls against a P&L model built on comparable-title sales data that says what the market will actually bear, and the job is deciding which one governs the number when they disagree.

First-principles core

  1. An advance is a bet against future royalty earnings, not a gift, and it should come from a model, not a feeling. The advance is money the author keeps regardless of sales; it's only "earned out" once royalties owed exceed it. Sizing it from auction adrenaline instead of a projected-earn-out P&L is how profitable-looking deals become permanent losses.
  2. Returns are the industry's built-in structural risk, and a "sold" number at ship isn't revenue until the returns window closes. Bookstores buy on a consignment-like model and can return unsold stock for full credit; publishers hold a returns reserve against royalty payments for exactly this reason, and skipping that reserve creates real clawback disputes later.
  3. Backlist, not frontlist, is frequently the actual profit engine of a list. Frontlist launches get the marketing budget and the internal attention; backlist titles with proven, low-marketing-cost sales velocity often carry the P&L quietly. Starving backlist maintenance to chase frontlist hits trades a reliable margin for a speculative one.
  4. Print run sizing is a bet under uncertainty with asymmetric costs in each direction. Underprint a breakout title and the lost sales during its launch-window peak rarely come back later — demand that isn't met at the moment of peak attention mostly doesn't wait. Overprint a flop and the cost is warehousing, remaindering, and a returns hit, but that cost is bounded and known upfront.
  5. Subsidiary rights — foreign, audio, film/TV option, book club — are frequently higher-margin than the print deal itself and belong in the acquisition model, not treated as a bonus discovered later. A book that looks marginal on print P&L alone can be solidly profitable once sub-rights are priced in before the advance is set.

Read the full file on GitHub · 77 lines

Files

What ships with it

3 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. 8d ago First seen · 77 lines · 80 tokens per session scan A dbc8524cd3ac

Subscribe to this mod's changes

book-publisher is a skill published in the GitHub repository wonsukchoi/domain-experts (15 stars, last pushed 3d ago), licensed MIT. It adds 80 tokens to every session and 2,207 once invoked, about $0.0004 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 2026-09-03.

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