abstracting agents and tools into skills

[altafr]

make this work with langchain in a way that abstracts the tools and agent combination into a "Skill" - (eg bookwriter, financial analyser). so if we have a skills framework - then devs can write skills which can then be composed to solve higher level goals and problem statements by using a combination of skills. note: the agent-toolkit in langchain can be extended or used for this abstraction.