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How to map harness components onto your own agent system with Harness Engineering

Use the Chapter 2 Harness Components notebook as a checklist for your agent's supporting layers.

Short answer: Open the README and go to the Chapter 2 table under Running the Notebooks; then Click the Open In Colab badge for Harness Components; run the notebook and list each harness component it shows, with its purpose. All steps.

Who it is forAn AI engineer building or reviewing an agent system who needs to decide which supporting parts the harness should include.

The problemAgent projects often grow ad hoc, so the surrounding code for tools, state, and control ends up scattered and hard to review.

The outcomeThe engineer produces a component map for their own agent, based on the components the Chapter 2 notebook demonstrates.

What you need first

  • A web browser and a Google account to open notebooks in Google Colab
  • A GPU runtime in Colab, since the README notes some notebooks may need one
  • Basic familiarity with Python and Jupyter notebooks

Steps

  1. Open the README and go to the Chapter 2 table under Running the Notebooks.
  2. Click the Open In Colab badge for Harness Components.
  3. Run the notebook and list each harness component it shows, with its purpose.
  4. Check the utils folder for any helper classes or functions the notebook depends on.
  5. Compare the list with your own agent and mark which components are missing.

Prompt for your agent

Using the Nicolepcx/harness_engineering repo, open ch02_harness_components.ipynb and list each harness component it demonstrates, with a one-line purpose. Compare that list to the agent in <placeholder: path or description of your agent> and return the components that are missing. Verify that each listed component appears in the notebook before you report it.

Caveat. The README does not describe what each component does, so the component list must come from reading the notebook itself.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for Nicolepcx/harness_engineering and "Map harness components onto your own agent system"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

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