- 'region "Add
--greeting flag to CLI"':
- button "Copy":
- img
- heading "Add --greeting flag to CLI" [level=1]:
- text: Add
- code: "--greeting"
- text: flag to CLI
- list:
- listitem:
- strong: Locate the CLI entry point
- text: (e.g.,
- code: cli.py
- text: ","
- code: main.go
- text: ","
- code: index.js
- text: etc.) and find the argument parser definition (argparse, click, cobra, yargs, or similar).
- listitem:
- strong: Register a new optional string argument
- text: named
- code: "--greeting"
- text: with a short alias (
- code: "-g"
- text: if available) and a sensible default value (e.g.,
- code: "\"Hello\""
- text: ).
- listitem:
- strong: Thread the parsed value
- text: through the main handler function so it is passed where the greeting string is used (e.g., the welcome/response message).
- listitem:
- strong: Update the help text
- text: so
- code: "--help"
- text: or
- code: "-h"
- text: shows the new flag with its description.
- listitem:
- strong: No tests or config changes
- text: unless they already exist and directly validate the flag's presence.
