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Gas Fee Predictor
Gas Fee Predictor API Rules
Gas Fee Predictor API Rules
Spectral linting rules defining API design standards and conventions for Gas Fee Predictor.
32 Rules
error 30
warn 1
info 1
Rules by declared severity: the level each rule assigns to a violation. These are not lint results.
Generated by API Evangelist
Written by API Evangelist tooling for Gas Fee Predictor's APIs. It is a starting point, not a ruleset Gas Fee Predictor publishes or enforces.
Rule Categories
contact
info
license
operation
path
response
server
servers
tag
Rules
info
operation-has-summary
Every operation has a summary (measured: 100% of this contract)
$.paths[*][get,post,put,patch,delete]
warn
operation-has-description
Every operation has a description (measured: 100% of this contract)
$.paths[*][get,post,put,patch,delete]
error
operation-has-tags
Every operation is tagged (measured: 100% of this contract)
$.paths[*][get,post,put,patch,delete]
error
operation-has-success-response
Every operation declares a 2xx response (measured: 100% of this contract)
$.paths[*][get,post,put,patch,delete].responses
error
path-no-trailing-slash
Paths carry no trailing slash (measured: 100% of this contract)
$.paths[*]~
error
path-params-in-braces
Path parameters use {braces}, not :colon (measured: 100% of this contract)
$.paths[*]~
error
servers-https
Servers are https (measured: 100% of this contract)
$.servers[*].url
error
info-has-description
The contract's info block carries a description (measured: 100% of this contract)
$.info
error
info-has-contact-or-terms
The contract's info block names a contact or terms of service (measured: 100% of this contract)
$.info
error
info-title-present
Info declares title (measured: 100% of this contract)
$.info
error
info-description-present
Info declares description (measured: 100% of this contract)
$.info
error
info-contact-present
Info declares contact (measured: 100% of this contract)
$.info
error
info-license-present
Info declares license (measured: 100% of this contract)
$.info
error
info-version-present
Info declares version (measured: 100% of this contract)
$.info
error
info-version-semver
info.version is numeric (measured: 100% of this contract)
$.info.version
error
contact-name-present
Contact declares name (measured: 100% of this contract)
$.info.contact
error
contact-url-present
Contact declares url (measured: 100% of this contract)
$.info.contact
error
contact-url-https
Contact.url is https (measured: 100% of this contract)
$.info.contact.url
error
license-name-present
License declares name (measured: 100% of this contract)
$.info.license
error
license-url-present
License declares url (measured: 100% of this contract)
$.info.license
error
license-url-https
License.url is https (measured: 100% of this contract)
$.info.license.url
error
server-url-present
Server declares url (measured: 100% of this contract)
$.servers[*]
error
server-url-https
Server.url is https (measured: 100% of this contract)
$.servers[*].url
error
server-description-present
Server declares description (measured: 100% of this contract)
$.servers[*]
error
tag-name-present
Tag declares name (measured: 100% of this contract)
$.tags[*]
error
tag-description-present
Tag declares description (measured: 100% of this contract)
$.tags[*]
error
tag-description-min-length
Tag.description runs at least 18 characters (measured: 100% of this contract)
$.tags[*].description
error
operation-tags-present
Operation declares tags (measured: 100% of this contract)
$.paths[*][get,put,post,delete,patch,options,head,trace]
error
operation-summary-present
Operation declares summary (measured: 100% of this contract)
$.paths[*][get,put,post,delete,patch,options,head,trace]
error
operation-description-present
Operation declares description (measured: 100% of this contract)
$.paths[*][get,put,post,delete,patch,options,head,trace]
error
operation-responses-present
Operation declares responses (measured: 100% of this contract)
$.paths[*][get,put,post,delete,patch,options,head,trace]
error
response-description-present
Response declares description (measured: 100% of this contract)
$.paths[*][get,put,post,delete,patch,options,head,trace].responses[*]
Spectral Ruleset
# authorship: generated by API Evangelist tooling (derive-rules.py, 2026-11-09). x-method: generated
# Every rule below was MEASURED against Gas Fee Predictor's own contract before it was written; a rule is present only
# when the contract satisfies it at 80% or more. Severity: 100% -> error, >= 90% -> warn, else info.
# Provenance:
# - operation-has-summary: 100%
# - operation-has-description: 100%
# - operation-has-tags: 100%
# - operation-has-success-response: 100%
# - path-no-trailing-slash: 100%
# - path-params-in-braces: 100%
# - servers-https: 100%
# - info-has-description: 100%
# - info-has-contact-or-terms: 100%
# - info-title-present: 100%
# - info-description-present: 100%
# - info-contact-present: 100%
# - info-license-present: 100%
# - info-version-present: 100%
# - info-version-semver: 100%
# - contact-name-present: 100%
# - contact-url-present: 100%
# - contact-url-https: 100%
# - license-name-present: 100%
# - license-url-present: 100%
# - license-url-https: 100%
# - server-url-present: 100%
# - server-url-https: 100%
# - server-description-present: 100%
# - tag-name-present: 100%
# - tag-description-present: 100%
# - tag-description-min-length: 100%
# - operation-tags-present: 100%
# - operation-summary-present: 100%
# - operation-description-present: 100%
# - operation-responses-present: 100%
# - response-description-present: 100%
x-method: generated
x-generator: derive-rules.py
x-generated: '2026-11-09'
x-source:
- openapi/gasfeepredictor-com-openapi.json
- openapi/gasfeepredictor-com-openapi.yml
x-self-check:
status: checked
rules: 32
dropped: {}
extends:
- - spectral:oas
- recommended
formats:
- oas3
rules:
operation-has-summary:
description: 'Every operation has a summary (measured: 100% of this contract)'
severity: info
given: $.paths[*][get,post,put,patch,delete]
then:
field: summary
function: truthy
x-pattern-key: Operation.summary|present
operation-has-description:
description: 'Every operation has a description (measured: 100% of this contract)'
severity: warn
given: $.paths[*][get,post,put,patch,delete]
then:
field: description
function: truthy
x-pattern-key: Operation.description|present
operation-has-tags:
description: 'Every operation is tagged (measured: 100% of this contract)'
severity: error
given: $.paths[*][get,post,put,patch,delete]
then:
field: tags
function: truthy
x-pattern-key: Operation.tags|present
operation-has-success-response:
description: 'Every operation declares a 2xx response (measured: 100% of this contract)'
severity: error
given: $.paths[*][get,post,put,patch,delete].responses
then:
function: schema
functionOptions:
schema:
type: object
patternProperties:
^2\d\d$: {}
minProperties: 1
x-pattern-key: Operation.responses|schema:07e20b47
path-no-trailing-slash:
description: 'Paths carry no trailing slash (measured: 100% of this contract)'
severity: error
given: $.paths[*]~
then:
function: pattern
functionOptions:
notMatch: ./$
x-pattern-key: Paths.{key}|pattern:!./$
path-params-in-braces:
description: 'Path parameters use {braces}, not :colon (measured: 100% of this contract)'
severity: error
given: $.paths[*]~
then:
function: pattern
functionOptions:
notMatch: ':'
x-pattern-key: 'Paths.{key}|pattern:!:'
servers-https:
description: 'Servers are https (measured: 100% of this contract)'
severity: error
given: $.servers[*].url
then:
function: pattern
functionOptions:
match: ^(https://|\{)
x-pattern-key: Server.url|pattern:^(https://|\{)
info-has-description:
description: 'The contract''s info block carries a description (measured: 100% of this contract)'
severity: error
given: $.info
then:
field: description
function: truthy
x-pattern-key: Info.description|present
info-has-contact-or-terms:
description: 'The contract''s info block names a contact or terms of service (measured: 100% of this contract)'
severity: error
given: $.info
then:
function: schema
functionOptions:
schema:
anyOf:
- required:
- contact
- required:
- termsOfService
x-pattern-key: OpenAPI.info|schema:093268bf
info-title-present:
description: 'Info declares title (measured: 100% of this contract)'
severity: error
given: $.info
then:
field: title
function: defined
x-pattern-key: Info.title|present
info-description-present:
description: 'Info declares description (measured: 100% of this contract)'
severity: error
given: $.info
then:
field: description
function: defined
x-pattern-key: Info.description|present
info-contact-present:
description: 'Info declares contact (measured: 100% of this contract)'
severity: error
given: $.info
then:
field: contact
function: defined
x-pattern-key: Info.contact|present
info-license-present:
description: 'Info declares license (measured: 100% of this contract)'
severity: error
given: $.info
then:
field: license
function: defined
x-pattern-key: Info.license|present
info-version-present:
description: 'Info declares version (measured: 100% of this contract)'
severity: error
given: $.info
then:
field: version
function: defined
x-pattern-key: Info.version|present
info-version-semver:
description: 'info.version is numeric (measured: 100% of this contract)'
severity: error
given: $.info.version
then:
function: pattern
functionOptions:
match: ^v?\d+(\.\d+)*
x-pattern-key: Info.version|pattern:^v?\d+(\.\d+)*
contact-name-present:
description: 'Contact declares name (measured: 100% of this contract)'
severity: error
given: $.info.contact
then:
field: name
function: defined
x-pattern-key: Contact.name|present
contact-url-present:
description: 'Contact declares url (measured: 100% of this contract)'
severity: error
given: $.info.contact
then:
field: url
function: defined
x-pattern-key: Contact.url|present
contact-url-https:
description: 'Contact.url is https (measured: 100% of this contract)'
severity: error
given: $.info.contact.url
then:
function: pattern
functionOptions:
match: ^https://
x-pattern-key: Contact.url|pattern:^https://
license-name-present:
description: 'License declares name (measured: 100% of this contract)'
severity: error
given: $.info.license
then:
field: name
function: defined
x-pattern-key: License.name|present
license-url-present:
description: 'License declares url (measured: 100% of this contract)'
severity: error
given: $.info.license
then:
field: url
function: defined
x-pattern-key: License.url|present
license-url-https:
description: 'License.url is https (measured: 100% of this contract)'
severity: error
given: $.info.license.url
then:
function: pattern
functionOptions:
match: ^https://
x-pattern-key: License.url|pattern:^https://
server-url-present:
description: 'Server declares url (measured: 100% of this contract)'
severity: error
given: $.servers[*]
then:
field: url
function: defined
x-pattern-key: Server.url|present
server-url-https:
description: 'Server.url is https (measured: 100% of this contract)'
severity: error
given: $.servers[*].url
then:
function: pattern
functionOptions:
match: ^https://
x-pattern-key: Server.url|pattern:^https://
server-description-present:
description: 'Server declares description (measured: 100% of this contract)'
severity: error
given: $.servers[*]
then:
field: description
function: defined
x-pattern-key: Server.description|present
tag-name-present:
description: 'Tag declares name (measured: 100% of this contract)'
severity: error
given: $.tags[*]
then:
field: name
function: defined
x-pattern-key: Tag.name|present
tag-description-present:
description: 'Tag declares description (measured: 100% of this contract)'
severity: error
given: $.tags[*]
then:
field: description
function: defined
x-pattern-key: Tag.description|present
tag-description-min-length:
description: 'Tag.description runs at least 18 characters (measured: 100% of this contract)'
severity: error
given: $.tags[*].description
then:
function: length
functionOptions:
min: 18
x-pattern-key: Tag.description|length
operation-tags-present:
description: 'Operation declares tags (measured: 100% of this contract)'
severity: error
given: $.paths[*][get,put,post,delete,patch,options,head,trace]
then:
field: tags
function: defined
x-pattern-key: Operation.tags|present
operation-summary-present:
description: 'Operation declares summary (measured: 100% of this contract)'
severity: error
given: $.paths[*][get,put,post,delete,patch,options,head,trace]
then:
field: summary
function: defined
x-pattern-key: Operation.summary|present
operation-description-present:
description: 'Operation declares description (measured: 100% of this contract)'
severity: error
given: $.paths[*][get,put,post,delete,patch,options,head,trace]
then:
field: description
function: defined
x-pattern-key: Operation.description|present
operation-responses-present:
description: 'Operation declares responses (measured: 100% of this contract)'
severity: error
given: $.paths[*][get,put,post,delete,patch,options,head,trace]
then:
field: responses
function: defined
x-pattern-key: Operation.responses|present
response-description-present:
description: 'Response declares description (measured: 100% of this contract)'
severity: error
given: $.paths[*][get,put,post,delete,patch,options,head,trace].responses[*]
then:
field: description
function: defined
x-pattern-key: Response.description|present
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