Expedia
Coding agents

Beyond the Prompt: Engineering the Loop for Software Change at Scale

Our short summary of Expedia’s engineering write-up. The full story, with all the detail, is on their blog.

Read the full write-up on medium.com (opens in a new tab)

Problem

Large code changes were slow because hidden dependencies and build failures required constant human intervention.

Solution

Created a Loop system that combines prompts, reusable skills, and sub‑agents to automate iOS component migration, handling failures and decisions autonomously.

Two‑year effort finished in three months

Want the architecture, code and numbers? They’re in the original post.

Read the full write-up on medium.com (opens in a new tab)

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