actions examples selection does not select things properly

[dievardump]

Describe the bug

the function that selects examples of messages for actions, composeActionExamples, does a very poor job at selecting examples of actions for a maximum of actions available. usually very few actions really represented

To Reproduce

Add a few actions, console log the context sent to the llm model and see there aren't many actions represented in the examples

Expected behavior

The code should try to take "at least one example per action" or to have a bigger variety of action represented