A way to reference tric's vars in the command line

[cliffordp]

Is there a way to access tric's vars via CLI, even if dumping one or all into the CLI's env vars?

This works:
${TRIC_BIN_PATH} site-cli plugin install ./wp-content/plugins/${_PLUGIN_SLUG}/external/gravityforms_2.4.21.7.zip

But I'd prefer avoiding the hard-coded wp-content/plugins part of that command and instead use tric's ${CODECEPTION_PROJECT_DIR}/external/gravityforms_2.4.21.7.zip

But that doesn't work:

And since CODECEPTION_PROJECT_DIR isn't part of tric info's "Current configuration" output, I also tried TRIC_PLUGINS_DIR but the same result (as expected):