Manage Amazon SWF Tags
Manage Amazon Simple Workflow Service tags using the Amazon SDKs or by interacting directly with the Amazon SWF API. Using the API you can add tags when registering a domain, list tags for an existing domain, and add or delete tags for an existing domain.
There is a limit of 50 tags per resource. See General Account Quotas for Amazon SWF
For more information see Working with Amazon SWF APIs, and Amazon Simple Workflow Service API Reference.