Creative Writing Skills

Write novels, short stories, and serial fiction with AI that maintains your voice, tracks your continuity, and gets better the more you use it. From first brainstorm to polished draft: specialized agents handle each mode of work (writing, critiquing, revising, exploring) while shared skills carry the craft methodology.

What you get:

• Brainstorm without committing: explore plot options, character arcs, and world mechanics with multiple AI perspectives before deciding anything
• Write in your voice: create style files from your existing prose, then draft new scenes that match
• Catch your own mistakes: structured critique, continuity checks, and simulated reader reactions
• Keep everything in sync: knowledge base updates as your story evolves

Quick Start

meridian mars add haowjy/creative-writing-skills
meridian mars sync
meridian bootstrap

Installation

Mars (Meridian)

meridian mars add haowjy/creative-writing-skills
meridian mars sync

Then run meridian to start a session with muse. First-time setup runs the bootstrap automatically.

Claude Code / Cowork

Claude Code and Cowork use the same plugin format.

Claude Code: add the marketplace and install:

/plugin marketplace add haowjy/creative-writing-skills
/plugin install creative-writing-skills@cw

Cowork: in the sidebar, Customize → Personal plugins → + → Create plugins → Add marketplace → Add from repository, enter haowjy/creative-writing-skills, then install the creative-writing-skills plugin. (Same flow as Claude.ai below — Cowork just also runs the agents.)

Once installed, start a session with muse as your agent:

claude --agent creative-writing-skills:muse

Run the one-time project setup to create your CLAUDE.md and kb/ structure:

/creative-writing-skills:project-setup

Claude.ai

creative-writing-muse turns an ordinary Claude chat into a creative writing partner. Turn it on, tell it what you're working on, and it carries you from first idea to finished draft in one conversation — talking through ideas, drafting scenes in your voice, flagging what isn't working, and revising. The other skills (prose, scene craft, critique, structure) are the craft knowledge it draws on; you don't have to invoke them yourself.

First, add the skills to claude.ai — pick one:

• Add the marketplace (easiest): in the sidebar, Customize → Personal plugins → + → Create plugins → Add marketplace → Add from repository, enter haowjy/creative-writing-skills, and click Sync.

  

• Upload the files: download the .skill files from the latest release, then Customize → Skills → "+" → Upload skill for each one.

Then start a chat, turn on creative-writing-muse, and describe what you want to write — it leads from there. Adding skills one at a time instead? Start with creative-writing-muse, writing-principles, creative-writing-craft, creative-writing-craft, and story-review.

Want to build the files yourself? Clone the repo and run python scripts/create_skill_zips.py to regenerate them in zips/.

How It Works

flowchart TB
    You([You]) --> M[muse]

    M --> Explore
    M --> Draft
    M --> Maintain

    subgraph Explore ["Explore & Plan"]
        direction LR
        B[brainstormer] ~~~ CS[character-sim]
        CS ~~~ O[outliner]
    end

    subgraph Draft ["Draft & Revise"]
        direction TB
        W[writer] --> CR[critic]
        W --> ED[editor]
        CR -->|synthesis| W
        ED -->|editorial memo| W
        M -.->|pivotal scenes| RS[reader-sim]
        M -.->|voice check| CC[continuity-checker]
    end

    subgraph Maintain ["Knowledge"]
        direction LR
        KL[kb-lead]
        SC[style-creator]
    end

    Explore -->|direction confirmed| Draft
    Draft -->|decisions & facts| Maintain
    Maintain -.->|context for next session| Explore

Explore: Fan out brainstormers for creative variety. Spawn character-sims to discover voices. Use outliners to shape structure once a direction is chosen.

Draft & Revise: Muse routes prose work to writer: fresh drafts, revisions, bridges, alternate takes, and polish. Critics evaluate focused craft dimensions; editor gives holistic book-editor priority across structure, voice, line quality, copy consistency, and proofing. Reader-sim gives experiential signal on pivotal scenes.

Knowledge: Fact extraction into the kb flows through the story-memory skill — muse dispatches meridian-base's kb-lead agent with it, or applies it directly in harnesses without kb-lead. Style-creator captures voice patterns from prose samples. The kb grows as the project evolves, giving every future agent accurate context.

Agents

Agent	Role
muse	Author-facing creative partner for all story work, from planning through production handoff
writer	Production prose from briefs, critique notes, and style references; uses progressive mode guidance for drafts, revisions, bridges, alternate takes, and line polish
critic	Deep adversarial critique of a draft, one focus area at a time
editor	Holistic third-party book editor pass: structure, voice, line quality, copy consistency, and proofing priority
reader-sim	Experiential reader response to a draft, moment by moment
character-sim	In-character conversation for voice discovery and relationship testing
continuity-checker	Cross-references content against established canon for contradictions
brainstormer	Creative option generation for a scoped question or angle
outliner	Sequences confirmed direction into arc, chapter, and beat-level outlines
style-creator	Analyzes prose samples to produce style reference files for the project's voice

Knowledge extraction into the kb is not a bundled agent: muse routes it to meridian-base's kb-lead loaded with the story-memory skill, or performs it directly where no kb-lead subagent exists.

Skills

Skill	Purpose
creative-writing-modes	Pen-on-paper prose modes: fresh draft, revision, bridge, alternate take, and line polish
creative-writing-craft	Craft references for prose, scenes, style, voice, and genre/page-level technique
writing-principles	Reader reward channels, AI failure modes, and fiction-specific taste discipline
story-planning	Direction, brainstorming, outlining, and story architecture before pages exist
story-review	Editorial review, developmental edit, line edit, copyedit, proofreading, craft critique, and reader-signal synthesis
story-memory	Context, fact extraction, reference writing, artifact layout, and persistent issue tracking
reader-sim	Skill-only first-time reader simulation from a specified persona
character-sim	Skill-only in-character conversation for voice and relationship testing
creative-writing-muse	Single-agent muse mode for environments without spawned agents
writing-staffing	Agent composition for writing workflows
llm-writing	Intentional language discipline: catches unchosen LLM defaults while preserving deliberate ambiguity, omission, repetition, and rhythm
shared-dao	Shared vocabulary: canonical story terms, aliases, and ambiguity resolution
project-setup	One-time guided setup: creates CLAUDE.md and kb structure

Project Layout

my-story/
├── CLAUDE.md              # Project conventions (created by project-setup)
├── story/                 # Chapters and manuscript
├── work/                  # Current drafting effort
│   ├── outline/
│   ├── drafts/
│   ├── critique-reports/
│   └── brainstorm/
└── kb/                    # Durable knowledge base
    ├── styles/            # Voice reference files
    ├── characters/        # Character state and profiles
    ├── world/             # Locations, lore, systems
    ├── timeline/          # Chronology
    ├── canon/             # Established facts
    └── issues/            # Tracked writing problems

Compatibility

Feature	Claude Code	Cowork	Mars (Meridian)	Claude.ai
All agents	Yes (flat)	Yes (flat)	Yes	No (grayed out in chat)
All skills	Yes	Yes	Yes	Marketplace add or zip
Multi-agent orchestration	Via muse	Via muse	Via muse → focused workers	No
Project setup	Yes	Yes	Yes	No

Claude Code, Cowork, and Meridian use muse as the main coordinator over a compact worker set: writer, critic, reader-sim, brainstormer, outliner, character-sim, style-creator, and continuity-checker. You can add the marketplace to the Claude desktop app from GitHub; Cowork runs the agents, but plain claude.ai chat runs skills only (agents grayed out) — there the creative-writing-muse skill provides single-agent muse mode in one conversation, backed by the craft skills.

Current Experiments

Rhetorical questions in skill prompts. The economy section in writing-principles uses rhetorical questions ("what can you leave out and still have the scene work?") rather than declarative statements. LLMs can distinguish rhetorical from information-seeking questions internally (arxiv 2604.14128), and Self-Ask prompting shows questions improve reasoning, but no research directly tests whether rhetorical questions in system prompts improve task performance vs. equivalent declaratives. Keeping the rhetorical form to see if it activates a self-check loop that declaratives don't.

Development

Validate package

meridian mars check

Release

mars version patch              # bump, commit, tag
mars version patch --push       # bump, commit, tag, push

License

Apache License 2.0. See LICENSE.