Read .meteor/release, .meteor/platforms, .meteor/cordova-plugins, .meteor/versions, package.json, and mobile-config.js when present. Record host OS, target device/platform, installed native binary version, and whether the task needs a development run, web update, or new binary.
Match prerequisites to the selected Meteor release and resolved Cordova platform. Meteor 3.5.2 uses cordova-lib@13.0.0, cordova-android@15.1.0, and cordova-ios@7.1.1; earlier releases have different pins. Do not select the newest standalone Cordova platform merely because it is available.
Choose the relevant reference below. Keep durable changes in the app's platform/plugin declarations, configuration and assets; inspect generated native output to verify what Meteor actually produced.
Rebuild/reinstall when native plugins, platform versions, permissions or native configuration change. HCP can update compatible web code/assets; it cannot supply missing native code or change installed binary metadata.
Verify on the target emulator/device or inspect the requested artifact. Record command, versions, endpoint and observable result. A successful web build alone does not validate a native app or a signed store artifact.

Task	Read
Set up Android/iOS, add/remove platforms, run a device, choose WebView compatibility	Toolchain and development
Change app metadata/assets, native preferences, access rules, plugins, permissions or build overrides	Configuration and plugins
Build Android artifacts or an iOS project, configure signing and prepare distribution	Build and distribution
Repair mobile update delivery, compatibility rejection, download or reload behavior	Hot code push

Persistent state and runtime boundaries

.meteor/local/cordova-build/ is generated by default. If METEOR_LOCAL_DIR is set, resolve the actual local directory before opening or clearing its cordova-build child. Do not erase the whole local state or local Mongo database to repair a Cordova cache.
mobile-config.js is a build-time configuration file, not an application module. App.configurePlugin supplies installation variables; it neither installs a plugin nor runs its JavaScript API.
Call native plugin APIs from client code guarded by Meteor.isCordova, inside Meteor.startup or after equivalent device readiness. Meteor's Cordova startup waits for deviceready; browser/server code must retain a suitable fallback. Startup does not grant OS permissions automatically.
A physical device's localhost is the device. Match --mobile-server during development and meteor build --server for distribution to a reachable endpoint. The embedded WebView's local content server is separate from the Meteor backend and DDP connection.

Neighboring workflows

Request	Owner
Unknown crash, stuck data, or failure not yet isolated to native behavior	`meteor-debugging`, then return with the confirmed native boundary
Host the backend, configure Galaxy/Docker, deploy server changes, preserve the HCP client bundle	`meteor-deployment`
Rspack/SWC/module graph or a native npm addon such as `sharp`	`meteor-modern-build-stack` or `migrate-to-rspack`
OAuth provider/login behavior	`meteor-accounts`; use this skill for required Cordova plugin or native configuration
Explicit React Native/Expo or Capacitor app	Keep the chosen stack; this skill does not implement those integrations

Use evaluation cases to check native decisions, earlier-release behavior, and neighboring-skill routing.