Solo Flight.
HARNESS ENGINEERING

Learn to build
an agent harness.

Give a model the context, tools and feedback it needs to do useful work. Learn how the pieces fit together, then build them into your own web app.

Technical foundersSoftware engineersCurious builders
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THE ARCHITECTURE

The model is one part.
The harness connects it all.

The architecture of an agent harnessModels sit inside context and orchestration: prompts, tools, memory, compaction, model routing and guardrails. The runtime provides loop, state, transport, authentication, triggers and observability. The harness connects bidirectionally to environments above, inference on the left, apps on the right and connectors below.EnvironmentsInferenceAppsConnectorsAgent HarnessContext & OrchestrationPrompts · Tools · Memory · Compaction · Model Routing · GuardrailsModelsRuntimeLoop · State · Transport · Auth · Triggers · Observability
Diagram recreated from scratch in Solo Flight’s theme. Credit: Jediah Katz, SpaceXAI, taken from his slides.
WHAT YOU ENGINEER

Four pieces to make it work.

Context that stays useful

Choose instructions, project knowledge and memory. Keep the agent focused as the task grows.

Tools with clear boundaries

Connect the workspace and APIs. Define what the agent can do and when it needs your approval.

A runtime that keeps track

Manage the loop, state and triggers. Make failures visible so work can be resumed or reviewed.

Feedback you can trust

Test the output against a clear goal. Feed failures back into the next attempt and review the result.

WHAT YOU’LL LEARN TO BUILD

Give your agent
a way to get things done.

A harness connects the agent, its tools and a feedback loop. You build the system that turns a goal into work you can check.

INSIDE YOUR AI AGENT HARNESSBuild. Check. Learn. Repeat.
YOU SET THE GOAL“Build a sign-up flow for my app.”
01 / ACT

The agent works.

Plans the next step.
Uses the tools. Makes a change.

ContextToolsMemory
02 / VERIFY

Check the result.

Run tests. Inspect the output.
Does it meet your goal?

Evidence before confidence.
PASS
03 / DELIVER

A working app.

A result you can review,
use and build on.

You decide when it’s done.
Needs work? Feed the findings back. Try again.
Your instructions. Your permissions. Human review when it matters.

This is the system you learn to build in our workshops.

Build your own harness
FROM DIAGRAM TO WORKING CODE

Bring a workflow.
Build the system around it.

For technical founders

Turn a repeatable product task into an agent workflow, with clear permissions and a result you can review.

For software engineers

Connect an agent to a codebase, run checks and inspect the changes before accepting them.

Workshops focus on working web apps. Check the session description for the featured app and technical level.

LEARN BY BUILDING

Your next app.
Your own agent harness.

Build alongside Aemal, ask questions and put the loop into practice.

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