The Living Grimoire.
Your magic system, built through conversation.
Most world-building tools ask you to fill forms. The Living Grimoire asks you questions. Over three phases of dialogue, it pulls your magic system out of your head and turns it into a structured, searchable document that lives in your world notes.
Forms don't build worlds.
Conversations do.
Every magic system template asks the same questions. You fill the boxes, get a document, then discover mid-draft that none of the boxes covered the situation you're actually in.
A form captures what you already know. A conversation surfaces what you don't know you don't know yet.
The Living Grimoire starts from what you have, probes the implications you haven't considered, and ends with a Grimoire document that reflects a system you've actually stress-tested.
You've said magic should feel like it costs something. When you imagine a character using it, what is being taken from them - is it something physical, something mental, or something harder to name?
Both, I think. They lose clarity. Like something fundamental about their sense of self gets blurred. Repeated use over days makes it worse.
Is this accumulation reversible? And is there a threshold - a point at which it stops being costly and becomes permanent? That distinction will define whether your practitioners can be career professionals or are necessarily temporary.
How It Works: Three Phasesdiscovery, stress-test, codify
Discovery
You describe what you have. Maybe it's just a feeling: "magic should feel like it costs something, like it takes something from the user." Maybe it's more developed: a specific scene you've already written, a constraint you've already committed to.
The Living Grimoire starts there. It asks follow-up questions targeted to what you haven't specified: What does "costs something" mean physically? Mentally? Is the cost proportional to the effect, or is it more arbitrary? Are there practitioners who've found ways to reduce the cost, and if so, what does that do to the social structure around magic?
These aren't form fields. They're reactions to what you've said, targeted to the specific implications of your specific system.
Stress-Testing
Phase two puts your system under pressure. The Living Grimoire takes the system you've described in Phase 1 and runs it into edge cases, internal contradictions, and plot-relevant implications you may not have considered.
If your magic draws from life force and can be used to drain others, the Living Grimoire will ask: what has stopped this from happening at scale? Is it law, or is there something structural in the system that makes it difficult? If a character could theoretically drain an entire city, why haven't they? What does the existence of that possibility do to how societies organize themselves around magic users?
Not to generate plot for you. To ensure your system is internally consistent before you've written three hundred pages that depend on it.
Codification
Phase three turns everything from the conversation into your Grimoire. A structured document with nine named sections: source, mechanics, cost and limits, variations, practitioners, artifacts, historical development, societal integration, and the ruling-out log.
The Grimoire saves directly to your world notes. It integrates with GrimoireScribe's RAG retrieval system, which means the relevant sections surface automatically in context when you're writing scenes that involve magic. You don't have to copy-paste your own world rules into every AI prompt. The system finds them.
The Ruling-Out Log & Nine Sectionsstructured output
What can't exist is as important as what can.
Every world-builder has a list of things their magic system can't do. Usually that list lives in their head, invisible to every collaborator, every writing tool, and often to themselves three months later when they accidentally contradict it.
The ruling-out log is a first-class section of the Grimoire. Not an afterthought. A catalog of explicit constraints you've decided on: this magic cannot resurrect the dead. It cannot be used to compel speech. It cannot accelerate time. Whatever your constraints are, they live in the Grimoire alongside the mechanics and limitations, and they're indexed for retrieval the same way.
When an AI writing mode is about to generate something that contradicts a ruling-out log entry, the relevant constraint appears in context. The system has read your rules. You're not the only one holding them.
The Nine Grimoire Sections
Where magic comes from and how it enters the world
How it works at a functional level
What using it demands, what it can't do
Regional, cultural, or individual differences in expression
Who has access and how they develop ability
Objects and places that interact with the system
How the system has changed over time
How the world has organized itself around magic
What has been explicitly decided cannot exist or occur
Questions about the Living Grimoire.
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