Apps Script clasp Workflow

Auth

clasp login             # interactive, opens a browser
clasp login --no-localhost   # headless/CI — prints a URL to visit, then paste the resulting code back

Produces ~/.clasprc.json. In CI, inject this file from a secret — never commit it; it's a live OAuth credential.

Project setup

clasp create --type standalone --title "My Project"   # new project
clasp clone <scriptId>                                  # existing project

.clasp.json fields that matter: