We just rolled out an update to the serverless-seed plugin to support manually specified artifacts.

The serverless-seed plugin optimizes Serverless Framework builds in Seed by incrementally deploying changes.

It does this by tracking the artifacts generated by Serverless Framework. This v0.3.14 update supports cases where you might be manually specifying the path to the artifact in your serverless.yml.

You can upgrade by running:

$ npm install --save-dev --save-exact serverless-seed@0.3.14

Read more about Incremental Lambda Deploys over on the docs.