CoursesAgent Harnesses in Practice
What a Harness Is
A model is stateless. A harness adds five parts around it: gateway, session, memory, tools and triggers. Six products, each built around one part first, and how to choose one for a team.
- Lessons
- 5
- Exercises
- 29
- Minutes
- 31
- 1
The Five Parts of a Harness
After this lesson you can say why a model on its own keeps nothing, name the five parts a harness adds, and label each turn of a transcript by the part that did the work.
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Six Tools, One Shape
After this lesson you can place each of the six tools on the five parts, say which part it was built around, and put Claude Code beside them.
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Chatbot or Operator
After this lesson you can look at the same model in two setups, say which harness part explains each difference, and fix the part instead of buying a bigger model.
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Checkpoint: What a Harness IsCheckpoint
Which part did the work, which tool was built around it, and what a missing part looks like, in fresh situations.
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Boss: Choose a Harness for a TeamBoss
One print shop, four asks: read the needs, name the part that matters, reject the tool built around the wrong part, size the memory, pick the trigger, count the security cost, write the one-line recommendation, and hand off.
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