@sourcegraph/sourcegraph.proposed(latest: 12.0.2) Sourcegraph extension API: build extensions that enhance reading and reviewing code in your existing tools
@sourcegraph/extensions-client-common(latest: 12.0.0) Common TypeScript/React client application code for Sourcegraph extension configuration and management, used in Sourcegraph and "Sourcegraph for X" products
@sourcegraph/basic-code-intel(latest: 10.0.0) Common library for providing basic code intelligence in Sourcegraph extensions
@sourcegraph/extension-api-types(latest: 2.1.0) Types for working with the Sourcegraph extension API. Extensions should use the 'sourcegraph' package, not this package. This package is only for client applications that embed Sourcegraph extensions and need to communicate with them.