Hello World

This is the skill contributed by the hello-world example plugin. If you are
reading this because a task asked you to "say hello" or "greet the world," the
plugin system is working: a skill living under
~/.aish/plugins/hello-world/skills/hello-world/SKILL.md was discovered and
merged into your skill registry alongside the skills in ~/.aish/skills.

How to greet

1. If the user gave a name, greet them by it. Otherwise greet "World".
2. Keep it to a single warm line. No preamble, no lecture.
3. Optionally add one short line noting the greeting came from the hello-world
   plugin skill — useful when the point of the exercise is to confirm plugin
   discovery.

Examples

• No name given →

  Hello, World! 👋

• User is "Gregory" →

  Hello, Gregory! 👋 — brought to you by the hello-world plugin skill.

That's the whole skill. Its real job is to be the smallest end-to-end proof that
a plugin can expand what the agent knows how to do.