[Eval] DiscoveryBench OpenHands Integration

[Ethan0456]

End-user friendly description of the problem this fixes or functionality that this introduces

This PR integrates the DiscoveryBench Benchmark into OpenHands, enabling it to evaluate the agent's capability for multi-step, data-driven discovery tasks across domains such as sociology, biology, and engineering.

• Include this change in the Release Notes. If checked, you must provide an end-user friendly description for your change below:

With this integration, users can benchmark the performance of OpenHands agents on real-world and synthetic discovery tasks, measuring their success in generating hypotheses, analyzing data, and reasoning through complex workflows. Here are the results for the DiscoveryBench test split with gpt-4o and CoderActAgent:

Metric	Value
Average Recall Context	0.267
Average Mean Accuracy Score	0.112
Average Final Score	0.103

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Give a summary of what the PR does, explaining any non-trivial design decisions

• This PR integrates DiscoveryBench into OpenHands by incorporating a structured flow that allows the OpenHands' agent to interact with DiscoveryBench tasks.

• Non-trivial design decisions:

  • Cloning the DiscoveryBench repository: Instead of using huggingface, we clone the repo to ensure that we always have the latest version and updates from the upstream repository.
  • process_instance function: This function encapsulates the logic to execute each instance, parse the agent's hypothesis, and evaluate it against the gold hypothesis.

How we structured everything in run_infer.py

• run_infer.py is the entry point for running the evaluation. Here's how the process is structured:
  • DiscoveryBench setup: First, the script clones the DiscoveryBench repository and loads its dataset into a pandas DataFrame for easy processing of the instances.
  • Agent environment: For each task, a Docker container is spun up with all the necessary libraries, ensuring that each task runs in a clean environment.
  • Agent configuration: Disabled function calling while enabling Jupyter and browsing delegate configurations in CoderActAgent.
  • Agent inference: The OpenHands agent is invoked to process the task within this environment, producing a hypothesis.
  • Result parsing: After receiving the agent’s hypothesis, we parse it and compare it against the “gold” hypothesis provided by DiscoveryBench.
  • Logging and output: The result for each task is logged into the test_result dictionary, which is ultimately written to an output.jsonl file for analysis and review.

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Link of any specific issues this addresses

• This PR addresses issue [Evaluation] Add DiscoveryBench Benchmark OpenHands/OpenHands#4465

Link of Older PR this addresses

• This PR is a newer version of this PR [Evaluation] DiscoveryBench OpenHands Integration