Claude-Book: Skill for Claude Code

.claude/skills/story-ideator/SKILL.md

story-ideator is a skill for Claude Code from ThomasHoussin/Claude-Book. It costs 57 tokens per session (1,536 once invoked), scanned A, original, MIT.

A story-planning guide for creating new adventures within an existing fictional universe using its characters, places, and tone.

In plain words
What is it for?
Loading a universe bible—a set of reference files about style, structure, characters, and locations—and using it to develop original storylines.
Why use it?
It helps preserve the feel of the source material while avoiding copied plots, scenes, mysteries, or chapter structures.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is ThomasHoussin/Claude-Book's own configuration. It tells Claude Code how to work on Claude-Book itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything Claude-Book configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ThomasHoussin/Claude-Book. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ThomasHoussin/Claude-Book/main/.claude/skills/story-ideator/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ThomasHoussin/Claude-Book

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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Your own site
<a href="https://agentmods.dev/skills/thomashoussin/claude-book/story-ideator"><img src="https://agentmods.dev/badge/skills/thomashoussin/claude-book/story-ideator/github.svg" alt="Measured on agentmods" height="20"></a>

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agentmods 80×15 button for story-ideator

Your own site · 80×15
<a href="https://agentmods.dev/skills/thomashoussin/claude-book/story-ideator"><img src="https://agentmods.dev/badge/skills/thomashoussin/claude-book/story-ideator.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,536 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 $0.00057 $0.01536
Opus 5 $0.00028 $0.00768
Sonnet 5 $0.00011 $0.00307
Haiku 4.5 $0.00006 $0.00154

Measured 11d ago against content hash c863be2bdcd3, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

story-ideator 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.

.claude/skills/story-ideator/SKILL.md · 218 lines

How it starts

The opening of the file, as written. The whole thing — 218 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Story Ideator Skill

Generate original storylines using an established universe bible. The goal is authentic stories that feel like they belong in the universe while being completely new.

Core Principle: Originality Over Imitation

NEVER:

  • Reuse plot structures from analyzed source books
  • Copy specific scenes, events, or mysteries
  • Recreate villain archetypes with minor changes
  • Mirror chapter-by-chapter progression patterns

ALWAYS:

  • Use only ELEMENTS (characters, locations, tone) from bible
  • Generate plots through COMBINATORIAL techniques
  • Verify originality against known source plots
  • Create NEW mysteries, conflicts, and resolutions

Input Requirements

Before ideation, verify these files exist:

  • bible/style.md - Writing constraints
  • bible/structure.md - Narrative arc patterns
  • bible/characters/*.md - Character profiles
  • bible/universe/*.md - Location files

If analysis/output/*/structure.md files exist, load them for anti-plagiarism checks.

Ideation Workflow

Phase 1: Load Universe Context

Read and extract from bible:

  1. Characters: List all from bible/characters/, extract:

    • Name, core traits, usual role in stories
    • Relationships between characters
    • Capabilities and limitations
  2. Locations: List all from bible/universe/, extract:

    • Name, atmosphere, typical story function
    • Connections between locations
  3. Structure constraints: From bible/structure.md:

    • Expected chapter count/length
    • Arc patterns, pacing expectations
    • Genre-specific mechanics (mystery, adventure, etc.)
  4. Style constraints: From bible/style.md:

    • Tone, vocabulary, forbidden elements
    • POV, tense, target audience

Output: Brief synthesis in .work/universe-context.md

Phase 2: Brainstorm via Collision Techniques

Generate 10-15 story seeds using these methods. Apply them to the SPECIFIC characters and locations found in Phase 1:

A. What-If Inversion Take a character's usual role and invert it:

  • "What if [leader character] had to follow instead of lead?"
  • "What if [protector character] needed protection?"
  • "What if [cautious character] had to take the biggest risk?"

Read the full file on GitHub · 218 lines

Files

What ships with it

1 file 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. 11d ago First seen · 218 lines · 57 tokens per session scan A c863be2bdcd3

Subscribe to this mod's changes

story-ideator is a skill published in the GitHub repository ThomasHoussin/Claude-Book (114 stars, last pushed 7mo ago), licensed MIT. It adds 57 tokens to every session and 1,536 once invoked, about $0.0003 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 2026-08-30.

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