worldbuilding
Skill8 starsChanged 9 months agoMITView on GitHub
This skill should be used when the user asks to "create a location", "add a location", "magic system", "political system", "build the world", "add culture", "world history", "technology system", "religion", "economy", or wants to develop any aspect of a story's world and setting.
7 other projects use a version of this, 1 of them edited.
Adopted by
Most recently taken up by
- fcsouza/agent-skillstheir own version, first seen Nov 14, 2026
- mm-weber/loremaestertheir own version, first seen Nov 8, 2026
- boundlesslightbringer/novelwritertheir own version, first seen Nov 1, 2026
- chellehoniker/claude-code-storytellerostheir own version, first seen Oct 20, 2026
- Bisbi/ttrpg-studiotheir own version, first seen Oct 13, 2026
- danjdewhurst/story-skillsedited, first seen Jun 3, 2026
Other versions7 projects use a version of this.
Word for word · 0
None found.
Edited · 1
- danjdewhurst/story-skills★ 41714% same
Wrote their own version · 6
- fcsouza/agent-skills★ 26same name
- mm-weber/loremaester★ 20same name
- Wondermonger-daydreaming/claude-skills-library★ 7same name
- Bisbi/ttrpg-studio★ 2same name
- chellehoniker/claude-code-storytelleros★ 1same name
- boundlesslightbringer/novelwriter★ 0same name
How matches are found. Word for word: the exact same text. Edited: shares passages with this file (“99% same” means 99% of its five-word phrases also appear here; 10% or more counts). Their own version: similar meaning, or, weakest, the same name. We can’t tell which project had it first. Projects are counted among the 200 most-starred candidates, and mentions are links to the repository we found, up to 50 per site, so both counts are a floor.
In this repository4 other files it gives its agents.
- chapter-writingSkill
- character-managementSkill
- plot-structureSkill
- story-initSkill
The file
Show its rules and text
We split this skill into the rules it gives an agent
15 rules. 0 are common, 4 are distinctive, and 11 are very specific to this project.
0
Common
Most of the 5 edited versions we read keep these.
4
Distinctive
This author's own choices. Worth a look.
11
Very specific
Tied to their project's names, files or tools. Probably skip.
- Common
- Distinctive
- Very specific
- Very specific: line 10
Create and manage world elements for a story project.
- Very specific: line 18
Read story.md for genre, era, and tone context
- Very specific: line 19
Read worldbuilding/_index.md for existing locations and systems
- Distinctive: line 20
Ask for the location's name and type (city, fortress, wilderness, etc.)
- Very specific: line 27
Write the file using references/location-template.md
- Very specific: line 29
Update worldbuilding/_index.md locations table
- Distinctive: line 30
If notable characters are listed, verify those character files exist and add location references to them
- Very specific: line 34
Read story.md for genre and themes context
- Very specific: line 35
Read worldbuilding/_index.md for existing systems
- Very specific: line 40
Update worldbuilding/_index.md systems table
- Distinctive: line 45
Read the existing file
- Distinctive: line 47
If cross-references changed, update the linked files
- Very specific: line 48
Update worldbuilding/_index.md if name, type, or status changed
- Very specific: line 54
When a location is used in a chapter, the chapter's frontmatter locations field links back
- Very specific: line 55
Keep the worldbuilding/_index.md world overview section current as elements are added
“Common” is measured: kept by at least 6 in 10 of the 5 edited versions of this file we could read. “Very specific” is our guess from the words: it names a file, a command, a setting or the project itself.
Files
Worldbuilding
Overview
Create and manage world elements for a story project. Locations and systems (magic, politics, technology, etc.) are stored as markdown files in the worldbuilding/ directory with YAML frontmatter. All elements cross-reference characters and other story elements.
Prerequisites
A story project must already exist (created via the story-init skill). Verify by checking for story.md in the project root.
Creating a Location
- Read
story.mdfor genre, era, and tone context - Read
worldbuilding/_index.mdfor existing locations and systems - Ask for the location's name and type (city, fortress, wilderness, etc.)
- Build the location through conversation, covering:
- Physical description and atmosphere
- History relevant to the story
- Culture and customs of inhabitants
- Notable features characters will interact with
- Current state at story's timeline
- Write the file using
references/location-template.md - Save to
worldbuilding/locations/{name-kebab}.md - Update
worldbuilding/_index.mdlocations table - If notable characters are listed, verify those character files exist and add location references to them
Creating a System
- Read
story.mdfor genre and themes context - Read
worldbuilding/_index.mdfor existing systems - Identify the system type and consult
references/world-element-types.mdfor the relevant prompts - Build the system through conversation, addressing the key questions for that type
- Write the file using
references/system-template.md - Save to
worldbuilding/systems/{name-kebab}.md - Update
worldbuilding/_index.mdsystems table - Cross-reference with characters who interact with the system (e.g., magic-users for a magic system)
Updating World Elements
- Read the existing file
- Make the requested changes
- If cross-references changed, update the linked files
- Update
worldbuilding/_index.mdif name, type, or status changed
Cross-Referencing
- Locations reference characters via
notable-charactersin frontmatter - Systems reference practitioners via character tags
- When a location is used in a chapter, the chapter's frontmatter
locationsfield links back - Keep the
worldbuilding/_index.mdworld overview section current as elements are added
Reference Files
references/location-template.md- Template for location filesreferences/system-template.md- Template for system filesreferences/world-element-types.md- Detailed prompts for each system type (magic, political, technology, religion, economic, military, social)
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