Outdated, please refer to CWL version 1.0 specifications §

This URL is for the outdated "draft-3" version of the Common Workflow Language standards.

Please go to https://w3id.org/cwl/ for the latest stable version.

Common Workflow Language Specifications, draft-3 §

The CWL draft-3 specifications are divided up into several documents.

The CWL draft-3 Command Line Tool Description Specification specifies the document schema and execution semantics for wrapping and executing command line tools.

The CWL draft-3 Workflow Description Specification specifies the document schema and execution semantics for composing workflows from components such as command line tools and other workflows.

The draft-3 version Semantic Annotations for Linked Avro Data (SALAD) Specification specifies the preprocessing steps that must be applied when loading CWL documents and the schema language used to write the above specifications.

If you use the CWL specifications or distribute CWL descriptions with a publication you should cite the standard