Core concepts

The vocabulary and moving parts you'll rely on in every guide. Learn how the Thresher engine drives execution, how a definition unfolds into instances, tracks and tokens, where data lives, and how events are routed.

• The engine (Thresher) — register, run, start, wait.
• Process, instance, track, token — how a definition becomes running work.
• Scope & the data plane — where data lives and how it's resolved by name.
• Events & the hub — how the engine routes signals, messages, timers.
• Observability — facts, reporters, observers, the operator log.