Glossary
Plain definitions of the terms used across Heighliner: fleets, budget leases, effect classes, escrow, sandboxes and BYOC.
- Budget leaseA budget lease is a small slice of a fleet's dollar budget, $1 by default, that the gateway spends from locally, so caps are enforced on every call without slowing it.
- BYOCBYOC, bring your own cloud, means Heighliner's data plane runs in your AWS, GCP or Azure account, so agents, data and traces stay there while we run the control plane.
- Effect classAn effect class labels every agent action by how hard it is to undo: pure, reversible, compensatable or irreversible. Policy and approvals follow from it.
- EscrowEffect escrow stages an agent's irreversible actions, like sending email, in an outbox and releases them only after approval and when the run commits.
- FleetA fleet is one or more AI agents running one harness under one manifest, one budget and one policy. A single scheduled agent is a fleet of one.
- SandboxOn Heighliner every agent runs in its own sandbox, with keys attached outside it and network egress only through the gateway, so one agent cannot reach another's work.
Early access
Give your agents a budget, a sandbox and a supervisor.
Heighliner is in early access. Join the waitlist and we will reach out as places open.