Holonovel

Name: Holonovel
Author: flukeatzerocool

by flukeatzerocoolversion 2026.10.31i★ –iRuns on your computer

Registry nameio.github.flukeatzerocool/holonovel

Install

Overview

Description from the maker (original English)

Holonovel MCP server: world-model base for tabletop RPG play (rooms, parser, narrative tools).

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
The registry lists no key to fill in.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "holonovel": {
      "command": "npx",
      "args": [
        "-y",
        "holonovel"
      ]
    }
  }
}

Run this in your terminal

claude mcp add holonovel -- npx -y holonovel

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "holonovel": {
      "command": "npx",
      "args": [
        "-y",
        "holonovel"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "holonovel": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "holonovel"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account flukeatzerocool, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32655 servers in this category
Published to the registry more recently than 84% of the other 32655 servers in this category
Basic checks equal to or better than 100% of the other 32655 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Holonovel safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (2026.10.31) reached the registry 6 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, SuperCollider

Alternatives

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

holonovel

The Holodeck for your rulebooks — rules enforced, worlds remembered.

A world-model MCP server for tabletop RPG play: rooms, things, exits, a parser command layer, and narrative tools, with out-of-the-box mechanics from Fate, Ironsworn, and Blades in the Dark (Fudge dice, momentum, and stress tracks — no ruleset required). Install it, then drop in any number of ruleset packages; each loads alongside the base and never modifies it.

Requirements

Node.js 22+

Install

npx -y holonovel

A fresh install is playable without a rulebook: the server seeds Torre Nosferatu, a tutorial Novel, and open_session resumes it in one call. Set TTRPG_STARTER_NOVEL=off to start with an empty world instead.

From a source checkout, run npm install and npm run start while developing; for a non-development run, npm run build && node dist/index.js.

MCP client configuration

"mcpServers": { "holonovel": { "command": "npx", "args": ["-y", "holonovel"] } } }

Data

A Novel is a structured save file with atomic saves, per-badge undo/redo snapshots, and an append-only audit log. By default the state directory is the operating system's user-data location: ~/.local/share/holonovel on Linux, ~/Library/Application Support/holonovel on macOS, or %LOCALAPPDATA%\holonovel on Windows. Set TTRPG_DATA_DIR to override it. An existing .holonovel-state/ beside the server is honored for compatibility.

Campaign data and installed packages live under the state directory, outside the server tree, so updating holonovel never touches them. A container or hosted deploy keeps that directory inside the container — point TTRPG_DATA_DIR at a mounted volume to keep campaigns across restarts.

Tool surface

The host exposes 36 action-discriminator tools covering persisted entity types, the parser command layer, and base-mechanics resolvers. Retired tool aliases are hidden from the default listing. Every tool carries all four MCP mutation-class hints and a three-clause description (see AGENTS.md for the full surface and the tool-definition authoring standard).

Categories:

Badges & Workflow — badge switching, workflow response, undo/redo
Characters & Cast — player characters, NPCs, identity, beliefs
World & Scene — world model, scene framing, perception, causal state
Narrative — story journal, lore, notes, vows, factions, countdowns
Session — recap, health, discovery, event log, audit
Mechanics — Fate, Ironsworn, and Forged in the Dark resolvers
Content — adventures, codex, ruleset packages, synthesis

Configuration

Behavioral switches read from the environment; every switch is inert by default. Common values:

Variable	Purpose
`TTRPG_DATA_DIR`	State directory (default: the per-user data location)
`TTRPG_NOVEL`	Novel to activate at startup
`TTRPG_SEED`	Deterministic PRNG seed
`TTRPG_RULESETS`	Ruleset slugs to load eagerly
`TTRPG_RULESET_DIRS`	Ruleset install directories
`TTRPG_NPC_AUTONOMY`, `TTRPG_NPC_MIND`	NPC autonomy behaviors
`TTRPG_WORLD_REACTIVITY`	World-in-Motion reactivity (default on)
`TTRPG_NARRATION_VALIDATION`	Narration grounding validation
`TTRPG_GUIDANCE_PROFILE`	`full` or `lean` guidance

Development

npm run typecheck          # TypeScript type checking

npm run test:all # verification harnesses

Tests are tsx harnesses under scripts/ (there is no test/ directory).

License

MIT. See LICENSE.md.

Bundled mechanics and Ruleset Wisdom are built from:

D&D 5e SRD v5.1 (CC BY 4.0 + OGL 1.0a, Wizards of the Coast)
Graham Nelson's Inform (Artistic License 2.0, Graham Nelson)
if-craft-corpus (CC BY 4.0, pvliesdonk)
dmcp (MIT, Shawn Rushefsky)
lonelog (CC BY-SA 4.0, zeruhur)
BitD SRD (CC BY 3.0, John Harper)
Ironsworn: Starforged SRD (CC BY 4.0, Shawn Tomkin)
Sly Flourish Lazy GM Resource Document (CC BY 4.0, Mike Shea)
The Alexandrian (CC BY 4.0, Justin Alexander)
Dungeon World SRD (CC BY 3.0, Sage LaTorra, Adam Koebel)
Fate SRD (CC BY 3.0, Evil Hat Productions)
Ironsworn SRD (CC BY 4.0, Shawn Tomkin)

Holonovel

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

SuperCollider

README from the maker

holonovel

Requirements

Install

MCP client configuration

Data

Tool surface

Configuration

Development

License