world-model-synthesis

world-model-synthesis is a skill for Claude Code from DDS-Solutions/AI-TadPole-OS. It costs 35 tokens per session (1,952 once invoked), scanned A, original, MIT.

A planning technique that represents complex system changes as a model of states and allowed transitions, then searches for a path to the desired result.

In plain words
What is it for?
It supports modelling system states, finding valid action sequences, and checking whether a complex operation can reach its target state.
Why use it?
It helps avoid guessing through multi-step changes such as migrations, deployments, or infrastructure updates.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is python execution/backtest_engine.py --trace-file .tmp/history.json --world-model .tmp/world_model.py.

Good fit It supports modelling system states, finding valid action sequences, and checking whether a complex operation can reach its target state.

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Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/DDS-Solutions/AI-TadPole-OS
agentmods
npx agentmods add skills/dds-solutions/ai-tadpole-os/world-model-synthesis

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for world-model-synthesis

README.md
[![agentmods](https://agentmods.dev/badge/skills/dds-solutions/ai-tadpole-os/world-model-synthesis/github.svg)](https://agentmods.dev/skills/dds-solutions/ai-tadpole-os/world-model-synthesis)
Your own site
<a href="https://agentmods.dev/skills/dds-solutions/ai-tadpole-os/world-model-synthesis"><img src="https://agentmods.dev/badge/skills/dds-solutions/ai-tadpole-os/world-model-synthesis/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for world-model-synthesis

Your own site · 80×15
<a href="https://agentmods.dev/skills/dds-solutions/ai-tadpole-os/world-model-synthesis"><img src="https://agentmods.dev/badge/skills/dds-solutions/ai-tadpole-os/world-model-synthesis.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 35 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,952 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 5.1 $0.00035 $0.01952
Opus 5.5 $0.00014 $0.00781
Sonnet 5.5 $0.00007 $0.00390
Haiku 4.5 $0.00003 $0.00195

Measured 12d ago against content hash 6ba4d6b136a2, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

world-model-synthesis 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 12d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/world_model_search.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.

.agent/skills/world-model-synthesis/SKILL.md · 156 lines

How it starts

The opening of the file, as written. The whole thing — 156 lines — stays where its author put it; the contents beside it link to each section on GitHub.

[!IMPORTANT] AI Context & Knowledge Heritage

  • Subsystem: Agent Skills Registry / world-model-synthesis
  • Architecture: @docs ARCHITECTURE:Documentation
  • Failure Path: Model divergence, non-deterministic state transitions, infinite search expansion.
  • Observability: Traceability via execution/parity_guard.py ([SKILL])

World Model Synthesis & Graph Search Planning Protocol

Knowledge Heritage: Inspired by Schema Harness (ARC-AGI-3 ~99% Public benchmark).
Source of Truth: execution/graph_planner.py, execution/backtest_engine.py

Overview

When agents encounter complex multi-step environment state changes (e.g. database schema migrations, deployment rollouts, infrastructure topology transitions), agents MUST NOT guess step-by-step actions in natural language. Instead, agents synthesize a programmatic world model (.tmp/world_model.py) and execute a local deterministic graph search (BFS or A*) to compute an optimal, zero-token action sequence.


🎯 Progressive Disclosure & L3 Reference Index

Read REQUIRED core workflow below; consult deep L3 Reference Guides on demand:

L3 Reference Guide / Tool Purpose Trigger / When to Load
references/world_model_templates.md Production templates for zero-downtime DB migrations, canary rollouts, and trace schemas When synthesizing multi-branch world models or backtesting historical telemetry
scripts/world_model_search.py Deterministic world model interface validator and BFS/A* local solver with --test suite Automated validation of synthesized models or running local plan computations

🧭 Decision Matrix: When to Synthesize a World Model

Scenario Recommend World Model? Justification
Multi-step state transition ($\ge 3$ dependent steps) YES Graph search eliminates compounding reasoning errors and verifies path safety.
Database schema migration or data backfill YES Pre-computes validation checkpoints, dual-writing gates, and rollback states.
Multi-stage service deployment / canary rollout YES Enforces health-check gates and rollback transitions deterministically.
Single-shot command execution (e.g. npm test, git status) NO Overkill; run deterministic CLI commands directly.
Linear script without branching or state rollback NO Standard procedural execution in execution/ is preferred.
Unbounded / infinite continuous state space NO Graph search requires discrete or discretized state transitions.

Read the full file on GitHub · 156 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. 12d ago Changed · +99 lines 6ba4d6b136a2
  2. 1mo ago First seen · 57 lines · 35 tokens per session scan A 51987e3f2c8a

Subscribe to this mod's changes

world-model-synthesis is a skill published in the GitHub repository DDS-Solutions/AI-TadPole-OS (8 stars, last pushed today), licensed MIT. It adds 35 tokens to every session and 1,952 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-09-03.

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