FEBRUARY 2026 • 12 MIN READ
Introducing Arcanea Prompt Books: Your AI Prompts Deserve a Home
79 files. 11,579 lines. 10 phases built overnight. A complete cross-device prompt management system with context engineering, real-time sync, and the full power of the Ten Guardians.
The Problem Every AI User Has
You have 47 prompts scattered across 12 apps. That perfect image generation prompt? Somewhere in a Discord DM. Your carefully crafted system prompt for code review? In a text file on your desktop. The chain prompt that produces your weekly newsletter? You recreate it from memory every single time.
AI prompts are the new creative artifacts. They are code, poetry, and craft rolled into one. They deserve the same respect we give to source code: version control, organization, collaboration, and a proper home.
That is what Arcanea Prompt Books does.
What Prompt Books Is
Prompt Books is a full-stack prompt management application built into the Arcanea platform. Think of it as the intersection of a code editor, a prompt library, and a context engineering workbench.
Cross-Device Sync
Supabase Realtime channels keep your prompts synchronized across every device. Edit on desktop, capture on mobile, review on tablet.
9 Prompt Types
General, Text-to-Image, Image-to-Image, Chat, Chain, Few-Shot, Code, Writing, and Analysis. Each type activates relevant tools.
Context Engineering
Model selector, temperature/topP sliders, few-shot examples, chain builders. Compile prompts into API-ready context packages.
Weight Syntax
SD (text:1.1), NAI {text:1.05}, and Emphasis [text:0.9] syntax. Parse, format, apply, and strip weights with a visual modifier.
Markdown First
Import and export prompts as .md files with YAML frontmatter. Your prompts are portable, version-controllable, and human-readable.
Guardian Themes
Collections align with the Ten Guardians. Lyssandria's earth tones for foundational prompts. Draconia's fire for transformation. Your choice.
How It's Built
The architecture follows three principles: type-safety everywhere, real-time by default, and platform-agnostic core logic.
The Database Layer
Six PostgreSQL tables with Row Level Security, managed through a single Supabase migration. The schema includes automatic version tracking via a pb_auto_version() trigger that snapshots your prompt content before every update. Full-text search runs through a dedicated pb_search_prompts() RPC function with ts_rank scoring.
-- Tables
pb_collections -- Folders with Guardian themes
pb_prompts -- The prompts themselves
pb_tags -- Injectable, weighted tokens
pb_prompt_tags -- Many-to-many junction
pb_prompt_versions -- Auto-versioning on every save
pb_templates -- Reusable prompt templatesThe Service Layer
29 async functions covering every CRUD operation. Collections, prompts, tags, versions, templates, search, import, and export. Every function takes a Supabase client as its first argument, making it testable and environment-agnostic.
The State Layer
A Zustand store with persist middleware. Only UI preferences go to localStorage. Data lives in Supabase. Three Realtime channels (pb_collections_sync, pb_prompts_sync, pb_tags_sync) filtered by user_id dispatch INSERT/UPDATE/DELETE events directly to store actions.
The Package
Platform-agnostic logic is extracted into @arcanea/prompt-books — types, constants, the context engine, markdown parser, and weight syntax utilities. This package can be used by the Chrome extension (Arcanea Vault), the CLI, or any future surface.
The User Experience, Step by Step
Land on /prompt-books
A liquid-glass sidebar on the left shows your collections, each with a Guardian-colored border. The main area shows your prompts in grid or list view. A floating action button glows in the bottom-right for quick capture.
Create a Collection
Click 'New Collection'. Name it, pick a Guardian to theme it (Lyria for image prompts, Draconia for transformation workflows). Set visibility to private, shared, or public. The Guardian's color flows through every prompt card in this collection.
Quick Capture a Prompt
Press Cmd+Shift+P from anywhere. A liquid-glass modal appears. Paste your prompt, pick a collection, hit Cmd+Enter. It's saved, synced, and searchable in under 2 seconds. The title auto-extracts from the first line.
Open the Editor
Click any prompt card. The full editor loads with a title bar, prompt type tabs (switch between General, Chat, Code, Image, etc.), and your content in a monospace textarea with a markdown toolbar. Bold, italic, code blocks, headings, lists — all with keyboard shortcuts.
Add Tags
Below the type tabs, a tag chip bar shows assigned tags. Click '+Tag' to open the tag selector — search existing tags, filter by category (Quality, Style, Negative, Model, Custom), or create new ones inline. Tags carry injectable text and optional weight modifiers.
Weight Syntax for Image Prompts
Switch to 'Text to Image' type. The weight modifier bar appears: pick SD, NAI, or Emphasis syntax, adjust the weight from 0.10 to 2.00, select text, click 'Wrap'. Your 'masterpiece' becomes '(masterpiece:1.2)'. The preview highlights weights in accent colors.
Split View Preview
Toggle the split view icon. The editor splits 50/50 — write on the left, see rendered markdown on the right. Weight syntax renders with color-coded strength. Template variables like {{subject}} glow in gold badges.
Context Engineering
Open the context panel. Select a model (Claude Opus 4.6, Gemini 2.5 Pro, GPT-4o). Adjust temperature, max tokens, top-p. Add few-shot examples as user/assistant pairs. For chain types, build multi-step pipelines with output variables passed between steps.
Search with Cmd+K
Press Cmd+K. A full-screen command palette appears with a search box. Results are grouped by collection, showing type icons, content previews, and tag counts. Arrow keys navigate, Enter opens, Escape closes. When empty, it shows your recent prompts.
Filter and Sort
The filter bar offers type dropdowns, a favorites toggle, tag multi-select, and sort options (newest, oldest, most used, A-Z, recently used). Active filters show as removable chips. Clear all with one click.
Version History
Click the history icon. A drawer slides in from the right showing every saved version with timestamps. Select a version to see a line-by-line diff against the current content. Green for added, red for removed. Click 'Restore' to roll back.
Templates
Open the template gallery. Browse starter, professional, creative, and technical templates. Each shows detected variables. Click 'Use' to open the instantiator — fill in each {{variable}}, see a live preview, pick a collection, and create your prompt.
Import and Export
Go to Settings > Import/Export. Drop .json, .md, or .txt files to import. The parser auto-detects YAML frontmatter in markdown files. Export individual collections or everything as structured JSON. Your prompts are never locked in.
PWA Share Target
Install Prompt Books as a PWA. Now when you share text from any app on your phone, 'Prompt Books' appears as a share target. The shared text flows directly into quick capture. Your prompts follow you everywhere.
Context Engineering: The Real Power
Most prompt tools let you save text. Prompt Books lets you engineer context.
The context engine compiles your prompt, tags, system prompt, few-shot examples, and parameters into a ContextPackage — a structured object ready to send to any AI API:
interface ContextPackage {
system: string | null;
messages: Array<{
role: 'system' | 'user' | 'assistant';
content: string;
}>;
parameters: {
model: string;
temperature: number;
maxTokens: number;
topP?: number;
};
metadata: {
promptId: string;
promptType: string;
compiledAt: string;
};
}Tags inject text at configurable positions (prepend, append, system) with weight modifiers. Chain prompts compile sequentially, passing output variables between steps. Template variables resolve at compile time. The result is a single, API-ready payload.
Part of a Bigger Picture
Prompt Books doesn't exist in isolation. It connects to the broader Arcanea ecosystem:
- Arcanea VaultChrome extension that captures conversations, images, and prompts from Grok, ChatGPT, Claude, Gemini, DeepSeek, and Perplexity. Vault exports. Prompt Books imports. One pipeline.
- @arcanea/prompt-booksShared package with types, constants, and engines. Used by the web app, the extension, and the CLI. Write once, run everywhere.
- Ten GuardiansEach collection can be themed by a Guardian. Lyssandria (Earth/Foundation), Leyla (Water/Flow), Draconia (Fire/Power) — the mythology enriches the organizational metaphor.
By The Numbers
What Comes Next
This is v1. The foundation is complete. Here is what follows:
- Vault Integration — Direct sync between the Chrome extension and Prompt Books
- Studio Mode — Visual prompt composition with drag-and-drop blocks
- Community Templates — Share and discover prompts from other creators
- AI-Assisted Refinement — Let the Guardians help you improve your prompts
- Analytics — Track which prompts produce the best results
Your prompts deserve better than a text file.
Arcanea Prompt Books is available now at arcanea.ai/prompt-books
Open Prompt Books