feat: babyagi agent support

[hychen-naza]

Description

Build Babyagi by composing chat agent (task solver) and task agent (task planner)

Types of changes

What types of changes does your code introduce? Put an x in all the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds core functionality)
• Example (update in the folder of example)

Implemented Tasks

• Subtask 1: Add babyagi under camel/society folder
• Subtask 2: Make an example file in example folder

Checklist

• I have read the CONTRIBUTION guide. (required)

[lightaime]

Thanks, @hychen-naza. But it seems the PR is outdated from the master. Should we add the new changes by branching from the current master branch?

[hychen-naza]

I was branching from the master branch.
If you are talking about the modification in task agent, I just add some new changes to make Babyagi run smoother. @lightaime

The demo video is the one I shared few days ago.

Small issue: I notice I have to specify the chat window size and task history size to avoid max token error. Let me know if you think if it's good or not.

[Obs01ete]

Overall good. Small changes requested.

[Obs01ete]

Overwriting self.task_prompt does not seem right. Why do we need self.specified_task_prompt then?

Please avoid mutation of fields. Also initialize a field only in one method. Both self.task_prompt and self.specified_task_prompt must be initialized in one method: init_specified_task_prompt in this case.

[hychen-naza]

Thanks for your comments.

I noticed the self.specified_task_prompt would lead to more concrete task planning and better task execution result. Otherwise, the user-input task prompt is too high-level to get useful results.

And, I avoid overwriting the self.task_prompt and initialize self.specified_task_prompt in init_specified_task_prompt method.

[lightaime]

Thanks for the PR @hychen-naza. Part of the PR is outdated with the current master in task_agent.py. I guess this is because I changed some things in the task_agent.py while you did not pull the master branch. Could we fix that?

[hychen-naza]

Yeah, I am gonna fix the file conflicts and other comments proposed.

[hychen-naza]

I notice some tests in test_search_functions.py are failed, may need to check that tests. They are passed last night, so I guess they might fail with some probabilities.

[lightaime]

Thanks @hychen-naza. That is an elegant implementation of BabyAGI with CAMEL!

It looks good overall. Left some minor comments.

[Obs01ete]

@hychen-naza Are you working on this PR? Comments by @lightaime did not get addressed. I think we can merge this for 0.2 release. But the PR has to be finished first. You did a great job and it would be a shame if it does not make its way tho the release.

[Obs01ete]

Please resolve all conversations before asking for a code review.

[hychen-naza]

I know my response is late.. I fixed most of the comments and left some feedback. And lmk if you have any other comments or suggestions.

[Obs01ete]

All good! I approve, but please wait for the approval by @lightaime before merging.

[lightaime]

Thanks for the PR @hychen-naza!