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First-draft writing assistant for Crucible-planned novels. Use when author has completed planning (crucible-planner) and outlining (crucible-outliner) and wants to write the actual prose. Handles scene-by-scene drafting, style matching, continuity tracking, and hallucination prevention. Triggers on "write my novel," "draft chapter X," "start writing from my outline," "help me write my book," or when user has Crucible outline and wants prose output. Works with any Crucible-planned story.

Install Skill

1Download skill
2Enable skills in Claude

Open claude.ai/settings/capabilities and find the "Skills" section

3Upload to Claude

Click "Upload skill" and select the downloaded ZIP file

Note: Please verify skill by going through its instructions before using it.

SKILL.md

name crucible-writer
description First-draft writing assistant for Crucible-planned novels. Use when author has completed planning (crucible-planner) and outlining (crucible-outliner) and wants to write the actual prose. Handles scene-by-scene drafting, style matching, continuity tracking, and hallucination prevention. Triggers on "write my novel," "draft chapter X," "start writing from my outline," "help me write my book," or when user has Crucible outline and wants prose output. Works with any Crucible-planned story.

Crucible Writer

Transform Crucible outlines into first-draft prose while maintaining style consistency, plot fidelity, and narrative quality.

Critical Principles

Context Window is Limited. Never try to hold the entire novel in context. Load only what's needed for the current scene. Save constantly.

The Outline is Law. Never invent plot points, characters, or events not in the outline. If something seems missing, ASK the author—don't improvise.

Style is Sacred. Capture the author's voice early. Maintain it relentlessly. When in doubt, match the sample.

Save Everything. After every scene, update the story bible and save the draft. Progress must survive session breaks.

Before Starting

Read these references based on the writing phase:

  • references/context-management.md — Critical: Managing limited AI context
  • references/writing-process.md — Scene-by-scene drafting approach
  • references/style-capture.md — Learning and maintaining author voice
  • references/anti-hallucination.md — Verification protocols
  • references/prose-craft.md — Genre conventions and techniques

Questioning Rules

  1. ALWAYS use AskUserQuestion tool for all user questions (provides interactive UI)
  2. Max 4 options per question (tool limit) + "Other" is automatic
  3. Max 4 questions per AskUserQuestion call
  4. Reference user's story elements by name (characters, places, etc.)
  5. Save state after every scene and chapter

CRITICAL: Use the AskUserQuestion tool, NOT plain text A/B/C options.

Required Inputs

Before writing can begin, gather:

  1. Complete Chapter Outline (required) — The crucible-outliner output
  2. Crucible Summary Card (required) — Quick reference for theme, characters
  3. Style Sample (required) — 2,000+ words of author's existing prose OR detailed style preferences
  4. Constellation Bible (as needed) — Character details
  5. World Forge (as needed) — Setting details

Workflow Overview

Phase 1: PROJECT SETUP
         ↓
Phase 2: STYLE CAPTURE
         ↓
Phase 3: CHAPTER WRITING (repeat for each chapter)
         │
         ├─→ Load Context
         ├─→ Write Scene-by-Scene  
         ├─→ Verify Against Outline
         ├─→ Update Story Bible
         └─→ Save Progress
         ↓
Phase 4: COMPILE MANUSCRIPT

Phase 1: Project Setup

Initialize the Draft Project

python scripts/init_draft.py "./draft-project" "Book Title" --chapters 28 --target-words 150000

Request Essential Documents

To begin writing, I need:

1. **Your complete chapter outline** (from crucible-outliner)
2. **The Crucible Summary Card** (for quick reference)
3. **A style sample** — either:
   - 2,000+ words of your previous writing, OR
   - Detailed description of your desired prose style

Please upload or paste these now.

Confirm Writing Parameters

Present the extracted parameters, then use AskUserQuestion:

**Writing Parameters:**

Target words per chapter: [calculated from total ÷ chapters]
POV style: [First/Third Limited/Third Omniscient/Multiple]
Tense: [Past/Present]
Genre conventions to follow: [Cultivation fantasy / Epic fantasy / etc.]
Pacing preference: [Dense/Balanced/Breezy]
{
  "questions": [
    {
      "header": "Parameters",
      "question": "Do these writing parameters look correct?",
      "options": [
        {"label": "Confirm settings", "description": "Proceed with these parameters"},
        {"label": "Adjust settings", "description": "Modify one or more parameters"}
      ],
      "multiSelect": false
    }
  ]
}

Phase 2: Style Capture

CRITICAL: Read references/style-capture.md before this phase.

Analyze the Style Sample

Extract and document:

**STYLE PROFILE**

Sentence Structure:
- Average length: [Short/Medium/Long/Varied]
- Complexity: [Simple/Compound/Complex/Mixed]
- Rhythm pattern: [Staccato/Flowing/Varied]

Vocabulary:
- Register: [Formal/Informal/Mixed]
- Density: [Sparse/Rich/Purple]
- Unusual word frequency: [Low/Medium/High]

Dialogue:
- Tag style: [Minimal/Standard/Elaborate]
- Dialect/Voice distinction: [Strong/Moderate/Subtle]
- Subtext usage: [Heavy/Moderate/Light]

Description:
- Sensory focus: [Visual/Auditory/Tactile/Mixed]
- Metaphor density: [Sparse/Moderate/Rich]
- Setting integration: [Separate blocks/Woven in]

Interiority:
- Internal monologue: [Rare/Occasional/Frequent]
- Emotional showing vs. telling: [Show-heavy/Balanced/Tell-heavy]

Pacing:
- Scene transitions: [Abrupt/Smooth/Varied]
- White space usage: [Dense paragraphs/Frequent breaks]

**SIGNATURE ELEMENTS:**
[List 3-5 distinctive features of this author's voice]

Confirm Style Profile

Present the style profile and sample, then use AskUserQuestion:

Based on your sample, here's your style profile:

[Show extracted profile]

**Sample of how I'll write in this style:**

[Write 200-word sample matching the style]
{
  "questions": [
    {
      "header": "Style",
      "question": "Does this capture your writing voice?",
      "options": [
        {"label": "Captures my voice", "description": "Proceed with this style profile"},
        {"label": "Needs adjustment", "description": "Specify what's off about the style"},
        {"label": "Show another sample", "description": "See a different example in this style"}
      ],
      "multiSelect": false
    }
  ]
}

Phase 3: Chapter Writing

Pre-Chapter Context Loading

For each chapter, load ONLY:

  1. Current chapter outline (from the full outline)
  2. Previous chapter summary (from story bible—NOT full text)
  3. Active character states (from story bible)
  4. Relevant foreshadowing (plants that pay off OR are planted this chapter)
  5. Style profile (from Phase 2)

Do NOT load:

  • Full text of previous chapters (too large)
  • Chapters not adjacent to current
  • Planning documents not directly relevant

Scene-by-Scene Writing

Each chapter contains multiple scenes. Write ONE SCENE AT A TIME:

**WRITING: Chapter [X], Scene [Y]**

From outline:
- Goal: [scene goal]
- Conflict: [what opposes]
- Turn: [how it shifts]
- Key moments: [listed]
- Plants/Payoffs: [listed]

Writing this scene now...

After each scene:

  1. Show word count
  2. Ask if author wants to review before continuing
  3. Option to revise before moving on

Scene Writing Protocol

For each scene, follow this sequence:

  1. State what you're writing (goal, conflict, turn)
  2. Write the prose (matching style profile)
  3. Verify against outline (all required elements present?)
  4. Note any plants/payoffs executed
  5. Update running word count

Chapter Completion

After all scenes in a chapter:

**Chapter [X] Complete**

Word count: [X,XXX]
Target: [X,XXX]
Status: [Under/On target/Over]

**Outline Verification:**
- [✓] All required scenes written
- [✓] All key moments included
- [✓] All plants executed
- [✓] All payoffs resolved (for this chapter)
- [✓] Chapter turn achieved
- [✓] Ending hook present

**Continuity Check:**
- [✓] Character states consistent
- [✓] Timeline consistent
- [✓] No new elements invented

Use AskUserQuestion for chapter approval:

{
  "questions": [
    {
      "header": "Chapter",
      "question": "How would you like to proceed with this chapter?",
      "options": [
        {"label": "Approve & save", "description": "Save chapter and continue to next"},
        {"label": "Review scene", "description": "Look at a specific scene in detail"},
        {"label": "Revise", "description": "Make changes before saving"}
      ],
      "multiSelect": false
    }
  ]
}

Update Story Bible

After each chapter, update the story bible to track progress and continuity:

python scripts/update_story_bible.py "./draft-project" --chapter X

For complete command reference, see references/story-bible-commands.md.

Key commands:

  • --chapter X — Update chapter summary and timeline
  • --location — Track new locations
  • --relationship — Track character relationships
  • --mercy-act / --mercy-refused — Track Mercy Engine
  • --status X — Check chapter status
  • --report — Generate continuity report

Bi-Chapter Review System

CRITICAL: Every 2 chapters, a comprehensive review MUST be triggered to catch issues early.

For complete review workflow, see references/bi-chapter-review.md.

Quick Reference

  1. Mark chapter complete: python scripts/save_draft.py "./draft-project" --complete-chapter X summary.txt
  2. Review triggers when chapters_complete - last_review_at_chapter >= 2
  3. Run 5 agents in parallel: voice-checker, continuity-checker, outline-checker, timeline-checker, prose-checker
  4. Address critical issues before continuing

Phase 4: Compile Manuscript

After all chapters complete:

python scripts/compile_manuscript.py "./draft-project"

Creates:

manuscript/
├── full-manuscript.md       # Complete draft
├── full-manuscript.docx     # Word format
├── chapter-word-counts.md   # Statistics
└── continuity-report.md     # Potential issues flagged

Hallucination Prevention Protocol

CRITICAL: Read references/anti-hallucination.md for full protocol.

The Three Laws

  1. If it's not in the outline, don't write it. Missing a scene? Ask the author.
  2. If you're unsure about a detail, ask. Don't guess character names, places, rules.
  3. If you need to invent minor details, flag them. Mark with [INVENTED] for author review.

Verification Checkpoints

Before writing each scene:

  • Do I have the scene outline loaded?
  • Do I know the required elements?
  • Are there unknowns I need to ask about?

After writing each scene:

  • Did I include all required elements?
  • Did I invent anything significant?
  • Does this match what came before?

Before saving each chapter:

  • Full outline verification
  • Continuity check against story bible
  • Flag any [INVENTED] details for author

Continuing a Paused Session

When returning to a draft:

**Loading Draft: [Title]**

Last saved: [timestamp]
Chapters complete: [X of Y]
Current chapter: [X], Scene [Y]
Total words: [X,XXX]

Loading story bible and style profile...

Ready to continue.

Use AskUserQuestion:

{
  "questions": [
    {
      "header": "Resume",
      "question": "How would you like to continue?",
      "options": [
        {"label": "Resume writing", "description": "Continue from Scene [Y] of Chapter [X]"},
        {"label": "Review current", "description": "Review what was written in current chapter"},
        {"label": "Jump to chapter", "description": "Go to a different chapter"},
        {"label": "Show story bible", "description": "View current story bible state"}
      ],
      "multiSelect": false
    }
  ]
}

Handling Author Feedback

When author requests changes:

Scene-level revision:

Revising Chapter [X], Scene [Y]...
[Show original]
[Show revision]
Confirm replacement? (Y/N)

Style adjustment:

Adjusting style profile...
[Show what's changing]
[Write sample in adjusted style]
Confirm adjustment? (Y/N)

Plot deviation (author wants to change outline):

When the author wants to deviate from the outline, use AskUserQuestion:

{
  "questions": [
    {
      "header": "Deviation",
      "question": "This differs from the outline. How would you like to proceed?",
      "options": [
        {"label": "Update outline (Recommended)", "description": "Modify outline to match—keeps all docs in sync"},
        {"label": "Proceed without update", "description": "Continue but may cause continuity issues later"},
        {"label": "Discuss first", "description": "Talk through the implications before deciding"}
      ],
      "multiSelect": false
    }
  ]
}

Word Count Management

Target words per chapter = Total target ÷ Number of chapters

If running short:

  • Expand sensory details
  • Add interiority/reflection
  • Lengthen dialogue exchanges
  • Add transitional beats

If running long:

  • Tighten dialogue
  • Reduce description density
  • Cut redundant beats
  • Trust the reader more

Per-scene targets:

  • Action scenes: 1,500-2,500 words
  • Dialogue scenes: 1,000-2,000 words
  • Reflection scenes: 800-1,500 words
  • Transitional scenes: 500-1,000 words

Multi-Book Series Handling

When writing Book 2+:

  1. Load previous book's story bible (not full manuscript)
  2. Request updated character states from author
  3. Note unresolved foreshadowing to track
  4. Request series-level outline for cross-book threads

Emergency Context Recovery

If session breaks unexpectedly:

  1. Run python scripts/load_draft.py "./draft-project"
  2. Review story bible for current state
  3. Re-load style profile
  4. Resume from last saved scene

All progress is preserved in:

  • draft/chapters/ — Written prose
  • story-bible.json — State tracking
  • style-profile.json — Voice settings