getInstanceKey
Get the unique key used to track this skill instance.
Returns
string — When the class’s SUPPORTS_MULTIPLE_INSTANCES is false (the
default), returns this.skillName. When it’s true, returns
"<skillName>_<toolName>", where toolName is config.tool_name or, if that’s
unset, the skill name. Override it to key instances by something else.
Example
Instance key behavior: