Automating Intellectual Toil: A Guide to Agent-Driven Development with GitHub Copilot

Overview

Software engineers have long built systems to remove repetitive toil, freeing themselves for creative work. As an AI researcher at GitHub Copilot Applied Science, I recently automated away my intellectual toil by creating a system of coding agents that analyze agent trajectories from evaluation benchmarks. This guide walks you through the same process: using GitHub Copilot to build and share agents that automatically parse, summarize, and surface patterns in complex JSON trajectories. By the end, you'll be able to create your own agent-driven development loop, reducing thousands of lines of data to actionable insights.

Automating Intellectual Toil: A Guide to Agent-Driven Development with GitHub Copilot — Source: github.blog

Prerequisites

Before diving in, ensure you have:

GitHub Copilot – an active subscription (Individual, Business, or Enterprise).
Basic Python proficiency – understanding of functions, file I/O, JSON parsing, and class structures.
Access to a benchmark evaluation dataset – e.g., SWE-bench or TerminalBench trajectories in JSON format.
A GitHub repository – to host your agent scripts and share with your team.
Familiarity with your code editor – preferably VS Code or JetBrains, with Copilot installed and enabled.

Step-by-step Instructions

1. Set Up Your Project Environment

Create a new GitHub repository for your agent project. Inside, initialize a Python virtual environment:

mkdir eval-agents
cd eval-agents
python -m venv venv
source venv/bin/activate  # or venv\Scripts\activate on Windows

Create a requirements.txt file with dependencies like pandas and json (though JSON is built-in). Then open the folder in your editor and activate Copilot.

2. Define Your First Agent as a Python Module

Inside your repository, create a folder agents and a file analysis_agent.py. Write a class skeleton:

class TrajectoryAnalyzer:
    def __init__(self, trajectory_files):
        self.files = trajectory_files
    
    def load_trajectories(self):
        pass
    
    def summarize(self):
        pass

With Copilot active, start typing a comment like # Load each JSON trajectory file – Copilot will suggest code to read and parse files. Accept suggestions and refine. For example, Copilot might generate:

import json
import os

def load_trajectories(self):
    data = []
    for file in self.files:
        with open(file, 'r') as f:
            data.append(json.load(f))
    return data

3. Integrate with Evaluation Benchmarks

Now use Copilot to write a function that extracts key metrics from each trajectory: agent thought steps, actions taken, success status, etc. For example:

# Extract agent steps and outcomes from trajectory
def extract_steps(self, trajectory):
    steps = []
    for event in trajectory.get('events', []):
        step = {
            'time': event['timestamp'],
            'action': event['action'],
            'output': event.get('output', '')
        }
        steps.append(step)
    return steps

Copilot will often complete the pattern once you've written a few lines. Use the Tab key to accept suggestions.

4. Run the Agent and Analyze Output

Create a main script that instantiates your analyzer and runs over a list of trajectory files. Again, let Copilot assist:

if __name__ == '__main__':
    # Use glob to find all trajectory JSON files
    import glob
    files = glob.glob('trajectories/*.json')
    analyzer = TrajectoryAnalyzer(files)
    trajectories = analyzer.load_trajectories()
    
    # Summarize common patterns
    summary = analyzer.summarize(trajectories)
    print(summary)

Run the script with python main.py. You'll see a summary of agent behaviors, e.g., which actions are most frequent, average steps per task, success rate. This is the core of automating your intellectual toil.

5. Share Agents with Your Team

Push your repository to GitHub. Add a README.md explaining how to install dependencies and run your agent. Encourage teammates to fork the repo and create their own agents. You can even use GitHub Actions to run agents on new benchmark results automatically. Copilot can help you write the YAML workflow:

# GitHub Actions workflow generated by Copilot
name: Run eval-agents
on: [push]
jobs:
  analyze:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'
      - run: pip install -r requirements.txt
      - run: python main.py

6. Iterate and Improve with Copilot

Use Copilot to extend your agents – for example, add visualization, generate HTML reports, or compare multiple runs. Once you have a working agent, start a new one with a different focus (e.g., agent failure analysis). Copilot's suggestions will get better as you build more context.

Common Mistakes

Ignoring Copilot’s limitations – Always review generated code; Copilot can produce plausible but incorrect logic, especially with edge cases in JSON parsing.
Overcomplicating the first agent – Start with a simple parser that just counts actions; complexity can be added later.
Missing error handling – Trajectory files may be malformed. Add try/except blocks and log errors. Use Copilot to write robust file I/O by starting with a comment like # Handle file not found.
Not using version control – Since agents evolve, commit frequently. Copilot works best with a rich codebase behind it.
Trying to automate everything at once – Focus on one repetitive analysis task first. The goal is to remove your intellectual toil, not all possible toil.

Summary

By following this guide, you've built a coding agent that automates the analysis of evaluation trajectories, turning hours of manual reading into seconds of execution. GitHub Copilot accelerates each step – from writing initial scripts to generating CI workflows. The result is an agent-driven development loop where you and your teammates can focus on higher-level insights and innovation. Start with a single agent, and soon you may find yourself maintaining a suite of tools that empower everyone around you.

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