Glossary

Term	Meaning
Agent / AgentModule	Your behavior policy / its implementation contract.
Engine	Executes observe → decide → act → reduce → check_stop.
Session / Run	Durable execution identity / one execution attempt or interval.
Snapshot / Checkpoint	Immutable captured state / persisted recovery identity.
WorkItem / Attempt	Owned unit of work / a particular attempt.
handoff / delegate / spawn / fork / join	Transfer ownership / awaited child / detached child / independent lineage / collect child results.
ToolResult / ArtifactRef	Canonical outcome / resolvable reference to retained bytes.
Trajectory / historical trace	Canonical journal facts / compatible older trace files.
provider / codec / continuation	Model service adapter / semantic encoding contract / opaque state needed by later requests.
sandbox / publication / effect / unknown	Execution boundary / explicit output release / external action / unresolved outcome.