[Feature] Support YAML api

[wenjin272]

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Description

Currently, Flink-Agents supports Python and Java APIs, both of which are programmatic. We aim to provide a declarative API, similar to the YAML-based API offered by CrewAI. We believe this will also help reduce the difficulty for Coding Agents when developing jobs based on Flink-Agents.

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• I'm willing to submit a PR!

[qingfei1994]

@wenjin272 I'm pretty interested in making Flink-Agents more user friendly, but I think it may be better if it also support SQL? Data engineers and data analyst are more familiar with SQL instead of yaml. What do you think?

[wenjin272]

Hi, @qingfei1994, the YAML API mentioned here is equivalent to the Python and Java APIs we already support. Users can declare an Agent using the Python API, Java API, or YAML API.

I agree with your point that big data engineers are more proficient in SQL. However, supporting SQL is a far more ambitious topic than providing a YAML API for Flink Agents. Flink Agents is built on top of Flink, you can regard an Agent constructed with Flink Agents as a custom operator in Flink. If SQL is to be used for describing Flink jobs that include flink-agents, modifications to Flink's table layer would be required. However, as Flink is a mature framework, ensuring API stability and compatibility is paramount. Therefore, until flink-agents reach sufficient maturity, we will not consider making changes to Flink at this time.