What is a Stock and Flow diagram?

A Stock and Flow diagram is a modeling tool used in system dynamics to represent accumulations (stocks) and the rates (flows) that change them over time, providing a mathematical basis for simulation.

Why use this skill for business modeling?

It helps identify why systems oscillate or fail (like inventory swings), allowing you to test 'what-if' scenarios for hiring, marketing, or production before committing resources.

How is this different from a Causal Loop Diagram?

While Causal Loop Diagrams show qualitative relationships and feedback structure, Stock and Flow diagrams add mathematical precision, allowing you to calculate magnitudes and predict behavior over time.

Does this skill help with software development?

Yes, it can be used to model technical debt as a stock, development velocity as a flow, and bug discovery rates to predict long-term project stability and delivery timelines.

Stock and Flow System Dynamics

Name: Stock and Flow System Dynamics
Author: lev-os

bylev-os

0•

数据科学与机器学习

Models complex system dynamics using stocks, flows, and feedback loops to quantitatively predict behavior and test policy interventions.

This skill enables Claude to perform advanced system dynamics modeling based on the principles of Jay Forrester and Donella Meadows. By distinguishing between stocks (accumulations) and flows (rates of change), it allows users to move beyond qualitative causal loops to precise mathematical simulations. It is particularly useful for identifying system inertia, momentum, and feedback-driven behaviors such as oscillation, overshoot, or collapse. Whether analyzing inventory management, population growth, or market dynamics, this skill provides a structured framework for identifying leverage points and predicting the long-term consequences of specific interventions before they are implemented in the real world.

主要功能

01Identification of feedback loops and information delays within complex systems

02Quantitative modeling of accumulations (stocks) and rates of change (flows)

030 GitHub stars

04Mathematical definition of converters and parameters for system simulation

05Policy testing to simulate the impact of different interventions on system stability

06Validation techniques to test models against historical data and extreme conditions

使用场景

01Modeling business growth, customer churn, and market saturation for strategic planning

02Predicting epidemic spread and healthcare capacity requirements under various scenarios

03Optimizing supply chain and inventory management to prevent oscillations and stockouts

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add lev-os/agents stock-and-flow-diagrams

For use in Claude.ai and ChatGPT

Download Skill