What problem does it solve? Delivering JavaScript, styling, and asset changes to installed Expo apps normally requires a new native build and app store review. This Skill guides configuring and using EAS Update so compatible changes reach users over the air, while preventing common mistakes like runtime-version mismatches and accidental production publishes. ## Core Features & Use Cases - Guided Configuration: Runs eas update:configure correctly, preserving existing eas.json profiles, dynamic app config, and tracked native projects instead of hand-editing update URLs or runtime versions. - Safe Publishing: Publishes updates to the right channel, branch, environment, platform, and runtime version, requiring explicit approval before touching production. - Testing & Debugging: Explains the two-cold-launch update lifecycle for release builds and walks through an ordered checklist when an installed build does not show new code. - Use Case: You fixed a bug in your React Native app already on TestFlight. Use this Skill to publish the fix to the preview channel, verify it on a release build, then promote the same update to production. ## Quick Start Use the eas-update skill to configure EAS Update in my Expo project and publish a fix to the staging channel.