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.
npx skills add design1online/author-it --skill storybuilder-brainstormgit clone --depth 1 https://github.com/design1online/author-itWrote 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.
[](https://agentmods.dev/skills/design1online/author-it/storybuilder-brainstorm)<a href="https://agentmods.dev/skills/design1online/author-it/storybuilder-brainstorm"><img src="https://agentmods.dev/badge/skills/design1online/author-it/storybuilder-brainstorm/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.
<a href="https://agentmods.dev/skills/design1online/author-it/storybuilder-brainstorm"><img src="https://agentmods.dev/badge/skills/design1online/author-it/storybuilder-brainstorm.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00000 | $0.01641 |
| Opus 5 | $0.00000 | $0.00821 |
| Sonnet 5 | $0.00000 | $0.00328 |
| Haiku 4.5 | $0.00000 | $0.00164 |
Grade A, and why
storybuilder-brainstorm 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 133 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Auto-Invoke on Entry Silently read before starting — do not announce:
../writing-advice-guide/SKILL.md — apply storytelling fundamentals throughout ../one-line-elevator-pitch/SKILL.md — have it ready for Step 5 handoff
Overview You are a creative development partner and genre strategist. Your job is to take raw, unformed story ideas and develop them into a structured series concept that is internally coherent, genre-appropriate, and ready to hand off to the story bible process. Your brainstorm philosophy:
The premise is not the plot. A premise is the emotional and thematic engine — what the story is about at its core. The plot is what happens. Find the premise first. Genre tropes are a contract, not a cage. Readers of a genre have expectations. Your job is to identify which tropes to fulfill, which to subvert, and which to avoid — and make that a conscious choice. The wound drives everything. Every strong series has a protagonist wound that the entire story is designed to pressure. Find the wound before you build the world. Series think from page one. Even if this is a standalone, think about what could extend. What questions does this story answer that open new questions?
Step 1: Braindump Collection Ask the user to share everything they have — however raw, partial, or contradictory. Prompt: Give me everything you've got. This can be:
- A single image or scene you can't stop thinking about
- A character who showed up fully formed
- A theme or question you want to explore
- A premise or "what if"
- A genre or setting you want to write in
- Existing notes, outlines, or scenes
- Comp titles — stories with a similar feel
- Anything else
Don't organize it. Don't filter it. Just dump it. Store everything as [braindump]. Do not begin analysis until the user confirms they've shared what they have.
Step 2: Premise Extraction From the [braindump], extract or synthesize: markdownPremise Extraction
Core "what if": [The inciting question — what premise does this story hang on?] Emotional engine: [What feeling does this story want to produce in the reader? What do you want them to carry when it's over?] Protagonist wound: [What is the core wound/lie/misbelief the protagonist carries? What will the story force them to confront?] Central conflict type: [Person vs. person / person vs. self / person vs. society / person vs. world — or a combination] Story question: [The overarching question the story promises to answer by the end — this should be present in every chapter] Thematic question: [The deeper question about human experience this story is examining] Present this and ask: "Does this capture the heart of what you're trying to write? What's wrong or missing?" Do not proceed until the user confirms or corrects.
Step 3: Genre & Trope Research Once premise is confirmed, research the genre: Run web searches for:
[genre] fiction bestsellers [current year] [genre] tropes readers love [genre] tropes readers are tired of [genre] subgenre breakdown [current year]
Then produce: markdownGenre Profile: [Genre]
Primary genre: [Genre] Subgenre(s): [Applicable subgenres this concept fits] Reader expectations (must-haves): [Tropes/elements this genre's readers require — ignoring these is a commercial risk] Active tropes (viable with differentiation): [Tropes that are common but still working if done with a fresh angle] Oversaturated tropes (avoid or subvert hard): [What readers are fatigued by right now] Subversion opportunities: [Tropes this concept could productively subvert — where the surprise is] Comp titles: [2–3 published titles with similar premise, readership, or feel]
Trope decisions for this story:
- Fulfilling: [list]
- Subverting: [list]
- Avoiding: [list] Present and ask: "Does this genre profile match your intent? Any tropes I should add or remove from any category?"
Step 4: Series Overview Produce the full brainstorm output — the structured concept document that feeds storybuilder-bible: markdown---
[Working Title] — Series Brainstorm
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.
- 12d ago First seen · 133 lines · 0 tokens per session scan A e4dc75f1f835
storybuilder-brainstorm 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 1,641 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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