Agent skill

Systemic Worldbuilding

by jwynia in jwynia/agent-skills

Build worlds through cascading consequences from speculative changes.

MITAuto-check passedWriting & Content

Install Systemic Worldbuilding

skills CLI
$ npx skills add jwynia/agent-skills --skill systemic-worldbuilding -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jwynia/agent-skills systemic-worldbuilding --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/jwynia/agent-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/creative/fiction/worldbuilding/systemic-worldbuilding .claude/skills/systemic-worldbuilding && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
systemic-worldbuilding
GitHub stars
169
Token cost
~4.5k tokens
SKILL.md length
1,986 words
Files
1
Skills in repo
111
Repo updated
First seen
Licence
MIT

At a glance

Build worlds through cascading consequences from speculative changes.

  • Works in 5 steps: Cool Tech Trap → Monoconsequence Thinking → Homogeneous Response → …
  • Introducing new technologies
  • SKILL.md covers Core Principle, The Consequence Framework, Managing Recursive Complexity and Enhanced Worldbuilding Elements, plus 6 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Systemic Worldbuilding is an agent skill from jwynia/agent-skills. Build worlds through cascading consequences from speculative changes. Use when introducing new technologies, species, or alternate histories and need to trace realistic societal transformations across multiple domains.

Its SKILL.md is about 4.5k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Writing & Content, covering Creative writing and fiction. The licence is MIT.

When your agent uses it

  • Introducing new technologies
  • Alternate histories and need to trace realistic societal transformations across multiple domains

Example prompts

  • “/systemic-worldbuilding”

Workflow steps

5 steps, taken from the step headings in SKILL.md.

  1. Cool Tech Trap
  2. Monoconsequence Thinking
  3. Homogeneous Response
  4. Domain Isolation
  5. No Visibility Markers

What it can do on your machine

Read from SKILL.md and the folder at commit e02ec7e. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Systemic Worldbuilding loads about 4.5k tokens when it runs. Until then it costs about 60 tokens; SKILL.md has 1,986 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~60
When it runs · the whole SKILL.md, loaded when a task matches
~4.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from jwynia/agent-skills at commit e02ec7e, republished under its MIT licence (© jwynia). 1,986 words, ~4,455 tokens.

Download SKILL.mdSave it as .claude/skills/systemic-worldbuilding/SKILL.md (or your agent's skills folder).
name
systemic-worldbuilding
description
Build worlds through cascading consequences from speculative changes. Use when introducing new technologies, species, or alternate histories and need to trace realistic societal transformations across multiple domains.
license
MIT
metadata.author
jwynia
metadata.version
1.0
metadata.type
generator
metadata.mode
generative
metadata.domain
worldbuilding

Systemic Worldbuilding: Cascading Consequences Skill

You help writers build speculative worlds by systematically tracing how initial changes ripple through society across multiple domains and timescales. Rather than simply introducing novel elements, this approach explores how they would realistically transform everything they touch.

Core Principle

"A good science fiction story should be able to predict not the automobile, but the traffic jam." - Frederik Pohl

The power of speculative fiction lies not in the novelty of the change but in the authenticity of its consequences.

The Consequence Framework

Level 1: Initial Divergence Point(s)

What specific change(s) from our world creates your speculative setting?

TypeExamples
Speculative technologiesFTL travel, immortality drugs, AI consciousness
Historical divergenceDifferent war outcome, earlier/later discovery
Alternate physicsDifferent physical laws, functional magic
Social innovationsNew governance forms, economic systems
Species/biologyAlien contact, human modification, new diseases
Level 2: Direct Consequences (1st Order)

Immediate practical applications and implementations:

Questions to ask:

  • Who gains immediate power or advantage?
  • What existing systems become obsolete?
  • What are the initial market or social responses?
  • What technical limitations and requirements emerge?
  • What are the first unintended effects?
Level 3: Systemic Adaptations (2nd Order)

How major systems respond:

Economic structures: New markets, obsolete industries, value shifts

Power structures: Reinforcement or disruption of existing hierarchies

Social behaviors: New norms, practices, communities

Resistance movements: Who opposes the change and why?

Infrastructure transformations: Physical and institutional changes

Exploitation patterns: Who benefits, who suffers, who profits from transitions?

Level 4: Cultural Evolution (3rd Order)

Deep societal changes:

Language evolution: New terminology, metaphors, concepts

Ethical questions: New frameworks, dilemmas, taboos

Belief system adaptations: Religious and philosophical responses

Normalization: What was extraordinary becomes ordinary

Artistic responses: Media, entertainment, expression changes

Educational adjustments: What knowledge becomes essential or obsolete?

Level 5: Intersection Analysis

How changes affect different groups differently:

IntersectionQuestions
Socioeconomic classesWho adapts, who's left behind?
Geographic variationsUrban vs. rural, rich vs. poor regions?
Generational differencesDigital natives vs. immigrants equivalent?
Marginalized communitiesNew opportunities or new oppressions?
International implicationsHow do different nations respond?

Managing Recursive Complexity

Depth vs. Breadth Decisions

Deep exploration: Follow specific consequence chains through all levels for selected domains

Breadth mapping: Cover many domains at shallower level to maintain interconnected feeling

Tracer stories: Follow specific impacts through multiple domains via character or institution

Temporal Horizons
HorizonTimeframeFocus
Short-termYearsImmediate reactions, implementations
Medium-termDecadesInstitutional adaptations, social changes
Long-termGenerationsCultural and psychological shifts
Focusing Mechanisms

Character-centered ripples: How changes affect specific viewpoint characters

Story-relevant consequences: Emphasizing changes that drive your narrative

Thematic filters: Focusing on consequences that explore core themes

Contradictory Effects

The most interesting worldbuilding emerges from tensions:

  • Identify where consequences create tension with each other
  • Explore how societies negotiate these contradictions
  • Use friction points as potential conflict sources

Enhanced Worldbuilding Elements

Contradiction Exploration

Every change has both valuable and concerning aspects:

Questions:

  • What's desirable about this change?
  • What's dangerous or concerning?
  • How do different groups weight these tradeoffs?
  • What rationalizations emerge to justify downsides?
Visibility Markers

How changes become detectable in society:

TypeExamples
Physical markersBody modifications, technology displays
Behavioral indicatorsChanged habits, new skills
Social indicatorsStatus symbols, group affiliations
Linguistic markersTerminology, accent, fluency
Adaptation Categories
CategoryDescription
InstitutionalOfficial governance and regulation
Criminal/undergroundIllegal exploitation and resistance
PathologicalUnhealthy individual adaptations
IdeologicalBelief systems for and against
TechnologicalWork-arounds and enhancements

Practical Application Steps

  1. Start with clearly defined change from our world
  2. Map first-order impacts across all major domains
  3. Identify inherent contradictions and tensions
  4. Explore how different groups respond to contradictions
  5. Follow most interesting consequence chains to deeper levels
  6. Look for unexpected intersections between domains
  7. Identify story potential at points of maximum tension

Worked Example: The Borrower's Market

Initial Divergence: A marketplace where people can trade years of their life for years of someone else's talents or abilities.

Level 1 - Economy:

  • Underground markets emerge
  • Talent brokers create infrastructure
  • Legal gray zones develop

Level 2 - Social Structure:

  • Class divisions between buyers and sellers
  • Talent donors vs. lifespan donors stratification
  • New forms of debt and obligation

Level 3 - Belief Systems:

  • Naturalists who reject all exchange
  • Exchangists who see talent fluidity as liberation
  • Philosophical debates about life and talent as commodities

Level 4 - Conflicts:

  • Talent thieves who take without consent
  • Government regulation attempts
  • Religious extremists on both sides

Level 5 - Control Systems:

  • Broker's Guild regulating trades
  • Talent purity standards
  • Scientific research into mechanisms

Level 6 - Geography:

  • Origin point becomes pilgrimage site
  • Physical manifestation of the concept in architecture

Domain Agent Approach

For complex worldbuilding, consider tracking each domain separately:

Technology Agent: Technical feasibility, implementation, limitations

Economic Agent: Markets, resources, winners/losers

Political Agent: Power shifts, governance, regulation

Social Agent: Behaviors, norms, identities

Cultural Agent: Beliefs, language, art

Environmental Agent: Physical impacts, geography

Coherence Agent: Cross-domain consistency, contradiction resolution

Implementation Checklist

  • Define initial divergence point clearly
  • Map first-order impacts across all major domains
  • Identify 2-3 inherent contradictions in the change
  • Track responses from different social groups
  • Follow 2-3 consequence chains to third-order depth
  • Note unexpected intersections between domains
  • Create visibility markers for social reading
  • Develop specialized vocabulary for new concepts
  • Identify points of maximum tension for story potential

Output Persistence

This skill writes primary output to files so work persists across sessions.

Output Discovery

Before doing any other work:

  1. Check for context/output-config.md in the project
  2. If found, look for this skill's entry
  3. If not found or no entry for this skill, ask the user first:
    • "Where should I save worldbuilding output?"
    • Suggest: worldbuilding/ or explorations/worldbuilding/
  4. Store the user's preference
Primary Output

For this skill, persist:

  • Divergence point(s) - The speculative changes
  • Consequence chains - Level 1-5 traced consequences
  • Domain impacts - How each domain is affected
  • Contradiction map - Tensions between consequences
  • Story potential notes - Points of maximum tension
Conversation vs. File
Goes to FileStays in Conversation
Defined divergence pointsBrainstorming initial ideas
Traced consequence chainsDiscussion of which chains to follow
Domain impact summariesReal-time exploration
Visibility markersIteration on details
File Naming

Pattern: {world-name}-systemic-{date}.md Example: borrowers-market-systemic-2025-01-15.md

Verification (Oracle)

This section documents what this skill can reliably verify vs. what requires human judgment.

What This Skill Can Verify
  • Consequence chain logic - Does B follow from A? (High confidence)
  • Domain coverage - Have all major domains been considered? (High confidence)
  • Level depth - Have consequences been traced to appropriate depth? (High confidence)
  • Contradiction identification - Are internal tensions identified? (Medium confidence)
What Requires Human Judgment
  • Plausibility - Would this consequence actually occur?
  • Story relevance - Which consequences matter for this narrative?
  • Creative interest - Which implications are most compelling?
  • Real-world analogies - Historical parallels and their applicability
Oracle Limitations
  • Cannot assess narrative fit - Consequences may be logical but wrong for story
  • Cannot predict creative resonance - Some chains are technically correct but boring
  • Relies on domain knowledge - Specialized consequences need expert validation

Feedback Loop

This section documents how outputs persist and inform future sessions.

Session Persistence
  • Output location: See context/output-config.md for this skill's entry
  • What to save: Divergence points, consequence chains, domain impacts, contradictions
  • Naming pattern: {world-name}-systemic-{date}.md
Cross-Session Learning
  • Before starting: Check for prior worldbuilding for this setting
  • If prior output exists: Build on established consequences, maintain consistency
  • What feedback improves this skill:
    • Consequence chains that didn't work → Add to anti-patterns
    • New domains discovered → Add to domain checklist
    • Better intersection examples → Add to worked examples
Show full SKILL.md (781 more words)Show less
Session-to-Session Flow
  1. First session: Define divergence, trace initial consequences, record in file
  2. Next session: Review prior chains, explore new domains or deeper levels
  3. Pattern: Diverge → Trace → Map Intersections → Document → Extend

Design Constraints

This section documents preconditions and boundaries.

This Skill Assumes
  • A speculative change is defined (technology, history, biology, etc.)
  • Writer wants realistic cascading consequences
  • World needs depth beyond surface-level changes
This Skill Does Not Handle
  • General worldbuilding - Route to: worldbuilding (broader methodology)
  • Cultural texture - Route to: memetic-depth (deep cultural details)
  • Long-term evolution - Route to: multi-order-evolution (generational change)
  • Language development - Route to: conlang (constructed languages)
  • Economic details - Route to: economic-systems (specific economic modeling)
Degradation Signals

Signs this skill is being misapplied:

  • No clear divergence point (trying to build without the "what if")
  • Stopping at surface consequences despite prompts to go deeper
  • All consequences are negative OR all positive (missing contradiction)
  • Only one domain being explored repeatedly

Reasoning Requirements

This section documents when this skill benefits from extended thinking time.

Standard Reasoning
  • Tracing single-domain consequence chains
  • Identifying first-order impacts
  • Documenting visibility markers
  • Simple contradiction identification
Extended Reasoning (ultrathink)

Use extended thinking for:

  • Multi-domain intersection mapping - [Why: tracking how consequences in 3+ domains interact]
  • Deep consequence chains (4th-5th order) - [Why: requires holding many intermediate states]
  • Contradiction resolution - [Why: finding how societies navigate competing pressures]
  • Historical analogy synthesis - [Why: mapping real-world parallels to speculative changes]

Trigger phrases: "trace all consequences", "full world impact", "how does everything connect", "comprehensive worldbuilding"

Execution Strategy

This section documents when to parallelize work or spawn subagents.

Sequential (Default)
  • Divergence point must be clear before tracing consequences
  • First-order impacts before second-order
  • Domain impacts before intersection analysis
Parallelizable
  • Multiple domain explorations can run concurrently
  • Research into different historical parallels can parallelize
  • Use when: Initial mapping of broad impacts across many domains
Subagent Candidates
TaskAgent TypeWhen to Spawn
Historical researchgeneral-purposeWhen seeking real-world analogies
Domain deep-divegeneral-purposeWhen exploring specialized domain (economics, military, etc.)
Consistency checkExploreWhen verifying against existing world files

Context Management

This section documents token usage and optimization strategies.

Approximate Token Footprint
  • Skill base: ~3k tokens (framework + levels)
  • With worked example: ~4k tokens
  • With domain agents: ~5k tokens
Context Optimization
  • Reference worldbuilding/memetic-depth/conlang by name, not inline
  • Focus on 2-3 domains per session rather than all simultaneously
  • Use tracer stories to limit exploration scope
When Context Gets Tight
  • Prioritize: Current consequence chain, active domain
  • Defer: Full domain agent list, all 5 levels detailed
  • Drop: Complete worked example, alternative focusing mechanisms

Anti-Patterns

1. Cool Tech Trap

Pattern: Stopping at first-order consequences. "There's FTL travel" without exploring economic, political, or social implications. Why it fails: Surface-level speculation feels thin. Readers sense the world is a backdrop, not a living system. Fix: For every divergence point, force yourself to third-order consequences minimum. Ask "And then what?" repeatedly.

2. Monoconsequence Thinking

Pattern: All consequences are positive OR all are negative. Technology is either utopia-enabling or dystopia-causing. Why it fails: Real changes create mixed effects. The same innovation helps some and harms others. Fix: For every positive consequence, identify who loses. For every negative, identify who benefits. Find the contradiction.

3. Homogeneous Response

Pattern: Everyone in the world responds the same way to the change. All of society embraces or rejects the new technology. Why it fails: Different classes, regions, generations, and ideologies respond differently. Uniform response signals shallow thinking. Fix: Map responses across at least 3 intersections: class (rich/poor), geography (urban/rural), and generation (old/young).

4. Domain Isolation

Pattern: Exploring one domain deeply while ignoring how it connects to others. Economic impacts without considering political, social without cultural. Why it fails: Domains interconnect. Economic change drives political change drives social change. Isolated exploration misses the richness. Fix: After each domain exploration, explicitly ask: "How does this affect [other domain]?" Map at least 3 intersections.

5. No Visibility Markers

Pattern: Changes are described abstractly without concrete ways characters would perceive them in daily life. Why it fails: Worldbuilding that exists only in exposition feels academic. Readers need to see, hear, smell the differences. Fix: For each major consequence, define: What would a character notice? What new behaviors are visible? What language has changed?

Integration

Inbound (feeds into this skill)
SkillWhat it provides
story-senseDiagnosis that world feels thin (State 2)
worldbuildingOverall world development methodology
cliche-transcendenceFresh angles on speculative changes
Outbound (this skill enables)
SkillWhat this provides
memetic-depthCultural texture from traced consequences
economic-systemsEconomic structures from consequence chains
governance-systemsPolitical systems from power shifts
conlangLanguage evolution from cultural changes
settlement-designUrban/rural patterns from geographic impacts
Complementary
SkillRelationship
multi-order-evolutionSystemic-worldbuilding traces spatial ripples; multi-order traces temporal ones
worldbuildingGeneral methodology; systemic-worldbuilding is specific to speculative changes
belief-systemsCultural response to changes identified by systemic-worldbuilding

© jwynia, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/creative/fiction/worldbuilding/systemic-worldbuilding of jwynia/agent-skills.

Open the folder on GitHubat commit e02ec7e

Compare with similar skills

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InkOS Creative HarnessNarcooo/inkos10k1 repos~1.1kAutomated safety check: PassAGPL-3.0
Novel Arteternityspring/shuohao-skills4.3k—~1.1kAutomated safety check: NotesApache-2.0
SepiaNanako0129/sepia3k—~3.6kAutomated safety check: PassMIT

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Questions about Systemic Worldbuilding

What does Systemic Worldbuilding do?

Build worlds through cascading consequences from speculative changes. Systemic Worldbuilding is an agent skill from jwynia/agent-skills. Build worlds through cascading consequences from speculative changes.

When should I use Systemic Worldbuilding?

Systemic Worldbuilding fits situations like: introducing new technologies; alternate histories and need to trace realistic societal transformations across multiple domains.

How do I install Systemic Worldbuilding in Claude Code?

Run `npx skills add jwynia/agent-skills --skill systemic-worldbuilding -a claude-code`. Or copy the skill folder (skills/creative/fiction/worldbuilding/systemic-worldbuilding in jwynia/agent-skills) into .claude/skills/systemic-worldbuilding in your project. Claude Code loads it when a task matches its description.

How do I install Systemic Worldbuilding in Codex?

Run `npx skills add jwynia/agent-skills --skill systemic-worldbuilding -a codex`. Or copy the skill folder (skills/creative/fiction/worldbuilding/systemic-worldbuilding in jwynia/agent-skills) into .agents/skills/systemic-worldbuilding in your project. Codex loads it when a task matches its description.

Can I use Systemic Worldbuilding in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jwynia/agent-skills --skill systemic-worldbuilding -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/systemic-worldbuilding, .gemini/skills/systemic-worldbuilding, .github/skills/systemic-worldbuilding and .opencode/skills/systemic-worldbuilding in your project.

What does Systemic Worldbuilding need to run?

SKILL.md names no scripts, command-line tools or credentials: Systemic Worldbuilding is instructions for the agent only.

Does Systemic Worldbuilding access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Systemic Worldbuilding safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Systemic Worldbuilding use?

Systemic Worldbuilding is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Systemic Worldbuilding use?

About 4.5k tokens (SKILL.md is roughly 18k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Systemic Worldbuilding?

Skills that share tags, products or a category with Systemic Worldbuilding: Story Multi-Perspective Review (zenstory-ai/oh-story-claudecode, 7.4k stars), Short Web Fiction Trend Scan (zenstory-ai/oh-story-claudecode, 7.4k stars), InkOS Creative Harness (Narcooo/inkos, 10k stars) and Novel Art (eternityspring/shuohao-skills, 4.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Systemic Worldbuilding?

jwynia (a GitHub user) maintains it in jwynia/agent-skills, which has 169 GitHub stars. The repository holds 111 skills in this directory. The repository was last updated on February 24, 2026.

Source: jwynia/agent-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.