Plugins
Plugins are add-ons that can be installed to extend and customize the Cheshire Cat.
A plugin is nothing but a collection of hooks and tools.
Hooks
The Cat uses functions known as hooks, which can be overridden, to customize the behavior of the framework in specific execution places.
Hooks come with a priority property.
The plugins manager takes care of collecting all the hooks, sorting and executing them in descending order of priority.
Tools
Tools are custom Python functions that are called by the Tool Agent.
They come with a rich docstring upon with the Tool Agent chooses whether and which tool is the most suitable to fulfill the user's request.
The list of available tools ends up in the Instruction Prompt, that instructs the Tool Agent on how to structure its reasoning.
Developer documentation