The deps.edn file is a data file specifying all information needed to form a project classpath, including deps, paths, and external dependency repository information. The deps.edn file format is used by the tools.deps library and the Clojure CLI.

If you are building a tool that would like to leverage deps.edn, create well-known namespaced :aliases as a means to convey tool configuration, rather than adding new arbitrary tags elsewhere in the deps.edn data - these may not be preserved or conveyed during processing. Tools can access alias data via the basis at runtime, or programatically via tools.deps.