Instagram moved its UI to Jetpack Compose for AI agents, cutting tokens 33%

Instagram Direct migrated its Android UI from the legacy View system to Jetpack Compose to make the codebase easier for AI coding agents to work with. The migration cut UI code volume by 50%, agent execution time by 35%, token costs per agent session by 33% and engineer-agent exchanges by 32%.

• Jetpack Compose migration reduced UI code volume by 50%
• Token costs per AI agent session fell 33%, execution time 35%
• Engineer-agent exchanges dropped 32%
• RecyclerView was replaced with LazyColumn, with A/B tests on production metrics