Add README

packages/context/README.md

@@ -1,3 +1,17 @@
 # Context
 
-**WIP**: This package is still a work in progress.
+## About
+
+This package contains code for the global context used on the API side of a
+Redwood application. It's automatically available in services, auth functions
+and custom functions.
+
+## Serveful environments
+
+In serverful environments with Fastify the global context is injected by a
+Fastify `onRequest` hook.
+
+## Serverless environments
+
+Babel is used to automatically wrap functions with code that makes the context
+available.

packages/context/src/store.ts

@@ -7,7 +7,9 @@ import type { GlobalContext } from './context'
 let CONTEXT_STORAGE: AsyncLocalStorage<Map<string, GlobalContext>>
 
 /**
- * This returns a AsyncLocalStorage instance, not the actual store
+ * This returns a AsyncLocalStorage instance, not the actual store.
+ * Should not be used by Redwood apps directly. The framework handles
+ * this.
  */
 export const getAsyncStoreInstance = () => {
   if (!CONTEXT_STORAGE) {