Part

Digital twin

You might say: behavioral clone, service twin

A local service that copies the behavior and edge cases of an outside dependency at its boundary. Scenarios can run against it quickly and safely instead of calling the live service.

What it does
Makes integration verification fast, repeatable and safe at factory scale.
Ask
Which boundary must the twin reproduce, including its failures and observable behavior?

What to look for

  1. A local service with the same API boundary as a dependency
  2. Fixtures for success, failure and edge cases
  3. Scenario runs that use the twin instead of production

Sources

  1. Justin McCarthy (StrongDM), Software Factories And The Agentic Moment, Digital Twin UniverseWe built twins of Okta, Jira, Slack, Google Docs, Google Drive, and Google Sheets, replicating their APIs, edge cases, and observable behaviors.
  2. Justin McCarthy (StrongDM), Software Factories And The Agentic Moment, Digital Twin UniverseThe key insight is to replicate behavior at the boundary.
  3. Justin McCarthy (StrongDM), Software Factories And The Agentic Moment, Software Factories And The Agentic MomentWe can run thousands of scenarios per hour without hitting rate limits, triggering abuse detection, or accumulating API costs.

Use it on your project

teardown-apply: hold "Digital twin" (digital-twin) from the teardown at https://teardownatlas.com/software-factory/ against my project

Paste it into a coding agent that has the teardown skills.

An AI agent wrote this map with the teardown skill. It can contain errors: check the sources before you rely on a part. About and legal