This directory is similar to the /cmd directory, but for executables that implement the luciexe protocol. These executables can run locally, and can also be run on hosts that support luciexe executables, e.g. Buildbucket.

See related docs:

• luciexe Go package: Overview of the luciexe protocol.
• Running luciexe on Buildbucket: How to run luciexe on Buildbucket. Note that buildbucket expects the executable to be named “luciexe”.
• luciexe/build Go package: Suggested framework to implement luciexe binaries.