Lago · API Governance Rules

Lago — lago openapi rules

Spectral linting rules defining API design standards and conventions for Lago.

4 Rules error 3 warn 1

Published by Lago Served by the provider at https://github.com/getlago/lago-openapi/blob/0607afeb3ab69b138485b64d96fc43cdce000d15/.spectral.yml; the copy below was fetched from there.

View Rules File View on GitHub

Rule Categories

array deprecated

Rules

error

array-params-brackets

Array parameters should end with square brackets.

$.paths.*.*.parameters[?(@.in == 'query' && @.schema.type == 'array')]

warn

array-params-plural

Array parameters should be plural.

$.paths.*.*.parameters[?(@.in == 'query' && @.schema.type == 'array')]

error

deprecated-parameter-must-mention-in-description

Deprecated parameters must mention the deprecation in their description.

$.paths.*.*.parameters[?(@ && @.deprecated == true)]

error

deprecated-schema-property-must-mention-in-description

Deprecated schema properties must mention the deprecation in their description.

$..properties[?(@ && @.deprecated == true)]

Spectral Ruleset

# harvested from https://github.com/getlago/lago-openapi/blob/0607afeb3ab69b138485b64d96fc43cdce000d15/.spectral.yml on 2026-10-09 — a Spectral ruleset published in the provider's own GitHub repository (getlago/lago-openapi); found by GitHub code search, fetched verbatim
x-method: harvested
x-stamped: 2026-10-09
x-source-url: https://github.com/getlago/lago-openapi/blob/0607afeb3ab69b138485b64d96fc43cdce000d15/.spectral.yml
extends: ["spectral:oas"]
functions: [plural]
rules:
  array-params-brackets:
    message: "Array parameter {{value}} should end with square brackets: {{value}}[]"
    description: Array parameters should end with square brackets.
    severity: error
    given: "$.paths.*.*.parameters[?(@.in == 'query' && @.schema.type == 'array')]"
    then:
      - field: name
        function: pattern
        functionOptions:
          match: "^[a-z][a-z_]+\\[\\]$"
  array-params-plural:
    message: "Array parameter {{value}} should be plural"
    description: Array parameters should be plural.
    severity: warn
    given: "$.paths.*.*.parameters[?(@.in == 'query' && @.schema.type == 'array')]"
    then:
      - field: name
        function: plural
  deprecated-parameter-must-mention-in-description:
    message: "Deprecated parameter at {{path}} must start with '**Deprecated**.' in its description."
    description: Deprecated parameters must mention the deprecation in their description.
    severity: error
    given: "$.paths.*.*.parameters[?(@ && @.deprecated == true)]"
    then:
      - field: description
        function: truthy
      - field: description
        function: pattern
        functionOptions:
          match: "/^\\*\\*Deprecated\\.\\*\\*/"
  deprecated-schema-property-must-mention-in-description:
    message: "Deprecated schema property at {{path}} must start with '**Deprecated**.' in its description."
    description: Deprecated schema properties must mention the deprecation in their description.
    severity: error
    given: "$..properties[?(@ && @.deprecated == true)]"
    then:
      - field: description
        function: truthy
      - field: description
        function: pattern
        functionOptions:
          match: "/^\\*\\*Deprecated\\.\\*\\*/"

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