SKILL.md
Core Primitives
iii has three top-level primitives:
- Function: a named unit of work such as
orders::validate - Trigger: an event source bound to a function
- Worker: a process that connects to the engine and executes functions
Since 0.25 every function is also observable: iii.observe(source, target) invokes target
on each invocation of source that passes its filters. Observers replace trigger bindings over
time; the built-in providers (http, cron, queue, state, stream, pub/sub, database) still
use trigger types in 0.25, so keep registerTrigger for them. See iii-observe.
Use :: in function IDs, leading slashes in HTTP api_path, and expression for cron config.
Function Registration
Register local handlers when you control the implementation. Register HTTP-invoked functions when iii should call an existing external endpoint.