Reference

`signal.alert`

domain: signal

A THRESHOLD-BREACH signal (the DETECT stage) — raised by a rule watching a measure (e.g. risk.flood.score >= T over N cells). An alert is the event that triggers recommendation generation and opens a case.

Field	Type	Required	Description
`schema`	`—`	✓
`id`	`string`	✓
`kind`	`string`	✓	what kind of alert, e.g. flood-risk
`severity`	`string`	✓
`title`	`string`
`area`	`string`		human description of the affected area
`trigger`	`string`		the rule that fired, e.g. risk.flood.score >= 0.7
`threshold`	`number`
`count`	`number`		how many measures breached
`case`	`string`		resolvable ref to the case this alert opened
`status`	`string`
`opened_at`	`string`	✓
`tenant`	`string`