Labels - Point docs

Summary

A label maps inputs to a display or domain value using ordered when branches and otherwise.

Syntax

label score status
  input score: Int
  output Text
  when score >= 90 return "excellent"
  otherwise return "keep going"

Semantics

Branches are evaluated in order. The first matching when wins. otherwise is the fallback. Output type is usually Text but may be any declared output type.

Compiler note

Labels are ordered decision tables: first matching when wins; otherwise is required when branches do not cover all inputs.

Example

From examples/math.point:

record User
  name: Text
  active: Bool

label user status
  input user: User
  output Text
  when user.active return "active"
  otherwise return "inactive"

Common mistakes

Missing otherwise when not all cases are covered by when
Comparing incompatible types in conditions (operator-type-mismatch)

Agent diagnostic notes

Ref: point://semantic/Math/label.score status
Good target for point explain when an agent needs branch context only