Agent skill · mvanhorn
pp-costco-sameday
Printing Press CLI for Costco Sameday. Costco Same-Day (sameday.costco.com) GraphQL CLI. Cookie auth after Costco Azure B2C SSO.
What it needs
About 9k tokens when loaded.
What this skill does
Costco Sameday — Printing Press CLI Prerequisites: Install the CLI This skill drives the costco-sameday-pp-cli binary. You must verify the CLI is installed before invoking any command from this skill. If it is missing, install it first: 1. Install via the Printing Press installer. It defaults binaries to $HOME/.local/bin on macOS/Linux and %LOCALAPPDATA%\Programs\PrintingPress\bin on Windows: 2. Verify: costco-sameday-pp-cli --version 3. Ensure the reported install directory is on $PATH for the agent/runtime that will invoke this skill. If the npx install fails (no Node, offline, etc.), fall back to a direct Go install (requires Go 1.26.6 or newer). This installs into $GOPATH/bin (default $HOME/go/bin), so add that directory to $PATH instead: If --version reports "command not found" after install, the runtime cannot see the binary directory on $PATH. Do not proceed with skill commands until verification succeeds. Costco Same-Day (sameday.costco.com) GraphQL CLI. Cookie auth after Costco Azure B2C SSO. Place-order mutation is FinalizeCheckout — exposed only via gated order place (--yes + --confirm-charge; --dry-run never charges). Tip updates via UpdateCheckout tipsUpdate. Cancel mutation not captured. HTTP Transport This CLI uses standard HTTP transport with HTTP/2 disabled for browser-facing endpoints. It does not require a resident browser process for normal API calls. auth login starts a browser only for sign-in and closes it after capturing the session cookies; it drives that browser over --remote-debugging-pipe (no DevTools network port; Windows falls back to a 127.0.0.1 random port). …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills mvanhorn/costco-sameday