World's Fair 2025
To the moon! Navigating deep context in legacy code with Augment Agent — Forrest Brazeal, Matt Ball
Overview
This talk demonstrates how Augment Agent can be used to navigate and modernize complex, legacy codebases. By leveraging AI to understand historical code, developers can accelerate comprehension, identify potential issues, and even automate modernization tasks. The presentation uses the Apollo 11 guidance computer code as a case study to illustrate these capabilities.
Who should watch
- AI Engineers
- Product Managers
- Software Developers working with legacy code
- Engineers looking to improve developer productivity
- Builders interested in AI-assisted code analysis and refactoring
Key takeaways
- Augment Agent's context engine is designed to extract high-quality input from codebases for AI models, leading to more accurate understanding and outputs.
- The tool integrates with existing IDEs, such as VS Code, allowing developers to work within their familiar environments.
- Security is a focus, with features like customer-managed encryption keys and adherence to ISO 420001.
- Augment Agent offers chat mode for simple Q&A and agent mode for more complex, autonomous tasks, including remote execution.
- The Apollo 11 guidance computer's assembly code, a significant legacy codebase, was used to demonstrate how the agent can explain complex functions and error codes like the 1201/1202 alarms.
- The agent can automate modernization by generating missing code files, running simulations, and implementing algorithms, as shown by the P65 lunar descent simulation.
- A recommended workflow for legacy code involves using the agent for initial understanding, asking targeted questions, predicting code behavior in chat mode, and then using agent mode to write tests and refactor.
- AI agents can assist in tasks like dependency checking across large codebases and iterating on solutions, similar to test-driven development.
Notable quotes
*Augment Agent will index it for you. You can ask questions in chat. You're going to be asking questions like, what does this codebase actually do?*
*It's not always going to get it right. I had a case where it was working with the scheduler and it couldn't decide for itself whether priority level zero was the highest level or lowest level in the system.*
Unofficial community note. Prefer the recording for nuance.