Expo Dev Loop

This skill requires project-knowledge. Before doing any work, confirm it is installed. When it is missing, stop and report it with its install command, npx skills@latest add toy-crane/skills --skill project-knowledge, using the project's package manager runner where it pins one.

Prove the changed behavior in the running app. Static inspection, type checks, unit tests, and a successful bundle support the result but do not replace device verification.

Establish the target

Inspect the request, current diff, Expo config, and package manifest. Identify the intended flow, platform, device, and observable result. When the request does not require both platforms, use one available representative local target and state that coverage; never infer iOS and Android parity from one run.