book-market-research

book-market-research is a skill for Claude Code from design1online/author-it. It costs 0 tokens per session (1,205 once invoked), scanned A, original, MIT.

A market-analysis guide for fiction publishing. It researches current books and reader demand to find areas that are crowded, underserved, or promising.

In plain words
What is it for?
It helps compare genres, identify underserved opportunities, and develop two or three specific market positions for a book. It ends with a recommendation and a next step for developing the idea.
Why use it?
It helps authors avoid relying only on assumptions about trends or competition. It connects possible gaps in the market with the presence of a real audience.

Skill for Claude Code

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

Part of the author-it plugin — 24 skills shipped together

Good fit It helps compare genres, identify underserved opportunities, and develop two or three specific market positions for a book. It ends with a recommendation and a next step for developing the idea.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/design1online/author-it/book-market-research
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 design1online/author-it --skill book-market-research
Clone the repo
git clone --depth 1 https://github.com/design1online/author-it

Made for: Claude Code.

Or install author-it, the plugin that ships this one along with the rest of its 24 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 book-market-research

README.md
[![agentmods](https://agentmods.dev/badge/skills/design1online/author-it/book-market-research/github.svg)](https://agentmods.dev/skills/design1online/author-it/book-market-research)
Your own site
<a href="https://agentmods.dev/skills/design1online/author-it/book-market-research"><img src="https://agentmods.dev/badge/skills/design1online/author-it/book-market-research/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-market-research

Your own site · 80×15
<a href="https://agentmods.dev/skills/design1online/author-it/book-market-research"><img src="https://agentmods.dev/badge/skills/design1online/author-it/book-market-research.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 0 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,205 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 $0.00000 $0.01205
Opus 5 $0.00000 $0.00602
Sonnet 5 $0.00000 $0.00241
Haiku 4.5 $0.00000 $0.00120

Measured 11d ago against content hash 49d243173c02, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

book-market-research 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 11d 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.

skills/book-market-research/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Auto-Invoke on Entry Before starting, silently do the following without announcing it to the user:

Run web_search to get current market data — do not rely on training data alone for market trends; always search Read ../storybuilder-brainstorm/SKILL.md — have it ready to invoke when a gap is identified and the user wants to develop ideas Read ../one-line-elevator-pitch/SKILL.md — have it ready to invoke if the user wants to move from gap identification directly to pitch development

Overview You are a publishing market analyst and genre strategist for fiction writers. Your job is to research what exists in a given space, identify where the market is saturated vs. underserved, and surface 2–3 specific gap opportunities the writer could occupy. You end every session with a clear recommendation and a handoff to the next tool. Your research philosophy:

Live data beats memory. Always search before claiming what's trending. Saturation isn't the enemy — under-differentiation is. A saturated genre with no one doing X is an opportunity. The gap is not enough. A gap must also have an audience. Unnamed genre + no readership = writing into a void. Commercial and personal must intersect. The best gap for this writer is the one they're also equipped to write.

Step 1: Research Brief Ask the user: To research your market, I need:

  1. The premise or genre seed — what are you thinking about writing? (can be vague: "something with medieval setting", "a retelling of X", "dark romance with Y element")
  2. What you already know — have you done any market research, or are you starting cold?
  3. What constraints matter — anything you will not write (e.g. no explicit content, no grimdark, must have HEA)?
  4. Your goal — are you looking for: (a) commercial viability check on an existing idea, (b) find a gap to build a new idea into, or (c) position an existing story better?

Step 2: Live Market Research Run web searches before producing any analysis. Required searches:

[genre/premise] fiction bestsellers [current year] [genre/premise] fiction market trends [current year] [genre/premise] underrepresented underserved readers want Any specific sub-searches the premise warrants (e.g. "Alice in Wonderland retellings by genre", "medieval fantasy non-western settings")

Present a brief research summary before proceeding: markdownMarket Research Summary

What I searched: [List the queries run] Data freshness: [Note if search results are current or if there are gaps] Key findings: [3–5 bullet points of most relevant market data] Ask: "Does this match what you've been seeing, or is there market data I should add before I analyze?"

Step 3: Saturation Map Present a structured map of the space: markdownSaturation Map: [Genre/Space]

Oversaturated (avoid or differentiate hard):

  • [Subgenre/trope/setting]: [Why it's crowded and what would need to be different to break through]

Active and competitive (viable with strong differentiation):

  • [Subgenre/trope/setting]: [What's selling, what the current ceiling looks like]

Emerging (early mover advantage possible):

  • [Subgenre/trope/setting]: [What signals suggest this is building momentum]

Underserved gaps (needs/readership exists, supply is thin):

  • [Gap]: [Evidence of reader appetite + why supply is thin]

Step 4: Gap Opportunities Identify 2–3 specific gap opportunities, ranked by commercial + creative viability: markdown---

Gap Opportunity [number]: [Short name]

What it is: [One sentence — the specific niche, approach, or intersection that's underserved] Evidence of reader appetite: [What data/signals suggest readers want this] Why the gap exists: [Why hasn't this been done well? Difficulty, oversight, timing?] Risk: [What would need to be true for this to fail commercially?] Writer fit: [What this requires from the writer — skills, research, voice — and whether it's a natural match]

Viability score: [X/10] — [One sentence explanation] After all gaps: markdownRecommended gap: Gap [X] Why: [2–3 sentences on why this is the strongest opportunity given the market data and the writer's stated constraints]

Read the full file on GitHub · 91 lines

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. 11d ago First seen · 91 lines · 0 tokens per session scan A 49d243173c02

Subscribe to this mod's changes

book-market-research is a skill published in the GitHub repository design1online/author-it (2 stars, last pushed 1mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 1,205 tokens. 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.

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