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The Engine is a headless agentic runtime. You give it a message, a model, and a set of tools, and it runs an agent loop end-to-end — streaming reasoning, calling tools, asking you questions when it needs to, and remembering what happened so the next conversation is shorter than the last. This site has three doors. Pick the one that matches what you’re doing:

Platform

Build with the Engine. Quickstarts in curl, Python, and Node, capability guides, the agent loop, and the full API reference.

Operations

Run the Engine. Local development, production deploys, configuration, on-call.

Internal

Build the Engine. Architecture, testing, contributing.

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What’s here

We follow the Diátaxis model loosely — tutorials when you’re learning, how-to guides when you have a goal, conceptual pages when you want to understand, reference when you know what you’re looking up. We don’t label them in the nav; we just keep them apart. If you’re new, start with the Platform quickstart. If you’re standing the Engine up on your own infrastructure, start with Operations → Local development. If you’re an engineer joining the team, start with Internal → Architecture.

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Conventions

  • code blocks show real, copy-pasteable commands. We test them.
  • Anything written in the second person (“you do this”) is a tutorial or how-to. Anything written in the third person is reference or explanation.
  • Internal-only pages are tagged in the page header. They’re stripped on public builds.
  • Every breaking change has a migration guide. Every release has a changelog entry. Every endpoint has reference documentation.
If something is wrong, broken, or missing, open an issue. The fastest way to fix docs is to write the page yourself.