create-setting

A guided process for creating and saving the setting of a novel, including its time period, places, society, technology, atmosphere, and rules.

In plain words
What is it for?
Use it to develop regions, institutions, social structures, recurring details, and continuity facts in Markdown source files.
Why use it?
It turns a rough idea into organized worldbuilding while checking that it fits the rest of the novel.

Skill for Claude CodeCodex

Install

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.

agentmods
npx agentmods add skills/comfuture/novelist/create-setting
Any agent
npx skills add comfuture/novelist --skill create-setting
Clone the repo
git clone --depth 1 https://github.com/comfuture/novelist

Made for: Claude Code, Codex.

Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 756 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00062 $0.00756
Opus 5 $0.00031 $0.00378
Sonnet 5 $0.00012 $0.00151
Haiku 4.5 $0.00006 $0.00076

Measured 2d ago against content hash e667bb96b6aa, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

create-setting 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 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/write_setting.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

plugins/novelist/skills/create-setting/SKILL.md · 98 lines

How it starts

The opening of the file, as written. The whole thing — 98 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create Setting

Overview

Use this skill to turn a rough novel-setting prompt into a complete world/*.md source file.

Always follow AGENTS.md and world/_template.md. Generate useful defaults from the user's prompt, but keep the process interactive: reflect the inferred setting, ask for missing information and direction, revise from feedback, then write only after the user confirms.

Before running a bundled command, resolve <skill-dir> to the absolute directory containing this SKILL.md. This keeps the same skill usable from either the repository-local skill tree or the Novelist plugin.

Workflow

1. Read Context

Read:

  • AGENTS.md
  • project.md
  • world/_template.md
  • Existing files in world/
  • Relevant plot/, outlines/, materials/, macguffins/, and characters/ files if the prompt references them

2. Generate A Setting Draft

From the user's prompt, infer a compact first-pass setting in Korean. Include:

  • era and time scale
  • primary region and key locations
  • social order, institutions, class pressure, and power structure
  • material culture and technology level
  • atmosphere, sensory palette, and recurring visual motifs
  • rules or constraints that affect plot
  • continuity facts that should not drift
  • open questions and missing decisions

Mark inferred items clearly. Do not present guesses as fixed canon.

3. Ask For Direction

Ask the user what to add, remove, sharpen, or decide. The question must focus on missing information and authorial direction, not on generic brainstorming.

Good prompts:

  • "시대는 조선 후기 그대로 둘까요, 아니면 가상의 왕조로 비틀까요?"
  • "이 세계의 핵심 압박을 정치, 가족, 종교, 경제 중 어디에 두면 좋을까요?"
  • "현실 고증을 강하게 가져갈지, 분위기 우선으로 변형할지 선택해주세요."

Continue the feedback loop until the user says it is enough or gives enough detail to save.

4. Build The Setting File

Use a filesystem-safe ASCII slug. Save to world/<slug>.md; id must be world-<slug>.

Required frontmatter:

id: world-ascii-slug
type: world
title: ""
category: setting
status: seed
time_period: ""
locations: []
rules: []
related_characters: []
related_materials: []
used_in_chapters: []
created: YYYY-MM-DD
updated: YYYY-MM-DD
tags: []

Read the full file on GitHub · 98 lines

Files

What ships with it

2 files 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. 2d ago First seen · 98 lines · 62 tokens per session scan A e667bb96b6aa

Subscribe to this mod's changes

create-setting is a skill published in the GitHub repository comfuture/novelist (5 stars, last pushed 1mo ago), licensed MIT. It adds 62 tokens to every session and 756 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 2026-08-31.

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