PolicyEngine · vahid-ahmadi · May 6, 2026
diff --git a/changelog.d/340.md b/changelog.d/340.md
@@ -0,0 +1 @@
+- Add a structural test that every parameter description ends with a period, and bring the existing 178 parameter files into compliance.
diff --git a/policyengine_uk/parameters/gov/benefit_uprating_cpi.yaml b/policyengine_uk/parameters/gov/benefit_uprating_cpi.yaml
@@ -1,4 +1,4 @@
-description: Most recent September CPIH index value, updated for each uprating occurrence (2005=100)
+description: Most recent September CPIH index value, updated for each uprating occurrence (2005=100).
 values:
   2005-01-01: 100
   2010-01-01: 114.48

diff --git a/policyengine_uk/parameters/gov/boe/base_rate.yaml b/policyengine_uk/parameters/gov/boe/base_rate.yaml
@@ -1,4 +1,4 @@
-description: Bank of England base rate
+description: Bank of England base rate.
 metadata:
   label: BoE base rate
   unit: /1

diff --git a/policyengine_uk/parameters/gov/dfe/adult_dependants_grant/income_limit.yaml b/policyengine_uk/parameters/gov/dfe/adult_dependants_grant/income_limit.yaml
@@ -1,4 +1,4 @@
-description: Household income limit for Adult Dependants' Grant
+description: Household income limit for Adult Dependants' Grant.
 metadata:
   label: Adult Dependants' Grant household income limit
   unit: currency-GBP

diff --git a/policyengine_uk/parameters/gov/dfe/adult_dependants_grant/maximum.yaml b/policyengine_uk/parameters/gov/dfe/adult_dependants_grant/maximum.yaml
@@ -1,4 +1,4 @@
-description: Maximum Adult Dependants' Grant amount
+description: Maximum Adult Dependants' Grant amount.
 metadata:
   label: Adult Dependants' Grant maximum
   unit: currency-GBP

diff --git a/policyengine_uk/parameters/gov/dfe/adult_dependants_grant/other_adult_income_limit.yaml b/policyengine_uk/parameters/gov/dfe/adult_dependants_grant/other_adult_income_limit.yaml
@@ -1,4 +1,4 @@
-description: Income limit for a non-partner adult dependant in the Adult Dependants' Grant assessment
+description: Income limit for a non-partner adult dependant in the Adult Dependants' Grant assessment.
 metadata:
   label: Adult Dependants' Grant other adult income limit
   unit: currency-GBP

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/eligibility/min_age.yaml b/policyengine_uk/parameters/gov/dwp/ESA/eligibility/min_age.yaml
@@ -1,4 +1,4 @@
-description: Minimum age for Employment and Support Allowance
+description: Minimum age for Employment and Support Allowance.
 metadata:
   unit: year
   period: year

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/income/amount_18_24.yaml b/policyengine_uk/parameters/gov/dwp/ESA/income/amount_18_24.yaml
@@ -1,5 +1,5 @@
 description: Income-based Employment and Support Allowance personal allowance for
-  persons aged 18-24
+  persons aged 18-24.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/income/amount_over_25.yaml b/policyengine_uk/parameters/gov/dwp/ESA/income/amount_over_25.yaml
@@ -1,5 +1,5 @@
 description: Income-based Employment and Support Allowance personal allowance for
-  persons aged over 25
+  persons aged over 25.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/income/couple.yaml b/policyengine_uk/parameters/gov/dwp/ESA/income/couple.yaml
@@ -1,5 +1,5 @@
 description: Income-based Employment and Support Allowance personal allowance for
-  couples
+  couples.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/income/earn_disregard.yaml b/policyengine_uk/parameters/gov/dwp/ESA/income/earn_disregard.yaml
@@ -1,5 +1,5 @@
 description: Earnings threshold above which the income-based Employment and Support
-  Allowance amount is reduced
+  Allowance amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/income/income_disregard_couple.yaml b/policyengine_uk/parameters/gov/dwp/ESA/income/income_disregard_couple.yaml
@@ -1,5 +1,5 @@
 description: Threshold for income for a couple, above which the income-based Employment
-  and Support Allowance amount is reduced
+  and Support Allowance amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/income/income_disregard_lone_parent.yaml b/policyengine_uk/parameters/gov/dwp/ESA/income/income_disregard_lone_parent.yaml
@@ -1,5 +1,5 @@
 description: Threshold for income for a lone parent, above which the income-based
-  Employment and Support Allowance amount is reduced
+  Employment and Support Allowance amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/income/income_disregard_single.yaml b/policyengine_uk/parameters/gov/dwp/ESA/income/income_disregard_single.yaml
@@ -1,5 +1,5 @@
 description: Threshold for income for a single person, above which the income-based
-  Employment and Support Allowance amount is reduced
+  Employment and Support Allowance amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/ESA/income/pension_disregard.yaml b/policyengine_uk/parameters/gov/dwp/ESA/income/pension_disregard.yaml
@@ -1,5 +1,5 @@
 description: Threshold for occupational and personal pensions, above which the income-based
-  Employment and Support Allowance amount is reduced
+  Employment and Support Allowance amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/IIDB/maximum.yaml b/policyengine_uk/parameters/gov/dwp/IIDB/maximum.yaml
@@ -1,5 +1,5 @@
 description: Maximum weekly Industrial Injuries Disablement Benefit; amount varies
-  in 10% increments
+  in 10% increments.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/contrib/amount_18_24.yaml b/policyengine_uk/parameters/gov/dwp/JSA/contrib/amount_18_24.yaml
@@ -1,4 +1,4 @@
-description: Income-based Jobseeker's Allowance for persons aged 18-24
+description: Income-based Jobseeker's Allowance for persons aged 18-24.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/contrib/amount_over_25.yaml b/policyengine_uk/parameters/gov/dwp/JSA/contrib/amount_over_25.yaml
@@ -1,4 +1,4 @@
-description: Contributory Jobseeker's Allowance for persons aged over 25
+description: Contributory Jobseeker's Allowance for persons aged over 25.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/contrib/earn_disregard.yaml b/policyengine_uk/parameters/gov/dwp/JSA/contrib/earn_disregard.yaml
@@ -1,5 +1,5 @@
 description: Threshold in earnings, above which the contributory Jobseeker's Allowance
-  amount is reduced
+  amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/contrib/pension_disregard.yaml b/policyengine_uk/parameters/gov/dwp/JSA/contrib/pension_disregard.yaml
@@ -1,5 +1,5 @@
 description: Threshold in occupational and personal pensions, above which the contributory
-  Jobseeker's Allowance amount is reduced
+  Jobseeker's Allowance amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/eligibility/min_age.yaml b/policyengine_uk/parameters/gov/dwp/JSA/eligibility/min_age.yaml
@@ -1,4 +1,4 @@
-description: Default minimum age for income-based Jobseeker's Allowance
+description: Default minimum age for income-based Jobseeker's Allowance.
 metadata:
   unit: year
   period: year

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/hours/couple.yaml b/policyengine_uk/parameters/gov/dwp/JSA/hours/couple.yaml
@@ -1,4 +1,4 @@
-description: Hours requirement for joint claimants of Jobseeker's Allowance
+description: Hours requirement for joint claimants of Jobseeker's Allowance.
 values:
   2015-04-01:
     value: 24

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/hours/single.yaml b/policyengine_uk/parameters/gov/dwp/JSA/hours/single.yaml
@@ -1,4 +1,4 @@
-description: Hours requirement for single claimants of Jobseeker's Allowance
+description: Hours requirement for single claimants of Jobseeker's Allowance.
 values:
   2015-04-01:
     value: 16

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/amount_18_24.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/amount_18_24.yaml
@@ -1,4 +1,4 @@
-description: Income-based Jobseeker's Allowance for persons aged 18-24
+description: Income-based Jobseeker's Allowance for persons aged 18-24.
 values:
   2015-04-01: 57.9
   2016-04-01: 57.9

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/amount_over_25.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/amount_over_25.yaml
@@ -1,4 +1,4 @@
-description: Income-based Jobseeker's Allowance for persons aged over 25
+description: Income-based Jobseeker's Allowance for persons aged over 25.
 values:
   2015-04-01: 73.1
   2016-04-01: 73.1

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/couple.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/couple.yaml
@@ -1,4 +1,4 @@
-description: Weekly contributory Jobseeker's Allowance for couples
+description: Weekly contributory Jobseeker's Allowance for couples.
 values:
   2015-04-01: 114.85
   2016-04-01: 114.85

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/income_disregard_couple.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/income_disregard_couple.yaml
@@ -1,4 +1,4 @@
-description: Threshold in income for a couple, above which the contributory Jobseeker's Allowance amount is reduced
+description: Threshold in income for a couple, above which the contributory Jobseeker's Allowance amount is reduced.
 values:
   2015-04-01: 10
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/income_disregard_lone_parent.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/income_disregard_lone_parent.yaml
@@ -1,5 +1,5 @@
 description: Threshold in income for a lone parent, above which the contributory Jobseeker's
-  Allowance amount is reduced
+  Allowance amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/income_disregard_single.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/income_disregard_single.yaml
@@ -1,4 +1,4 @@
-description: Threshold in income for a single person, above which the Jobseeker's Allowance amount is reduced
+description: Threshold in income for a single person, above which the Jobseeker's Allowance amount is reduced.
 values:
   2015-04-01: 5
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/JSA/income/takeup.yaml b/policyengine_uk/parameters/gov/dwp/JSA/income/takeup.yaml
@@ -1,5 +1,5 @@
 description: Share of eligible Income-based Jobseeker's Allowance recipients that
-  participate
+  participate.
 metadata:
   economy: false
   label: Income-based Jobseeker's Allowance take-up rate

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/earn_disregard.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/earn_disregard.yaml
@@ -1,4 +1,4 @@
-description: Threshold earnings, above which the Housing Benefit (LHA) is reduced
+description: Threshold earnings, above which the Housing Benefit (LHA) is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/income_disregard_couple.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/income_disregard_couple.yaml
@@ -1,5 +1,5 @@
 description: Threshold in income for a couple, above which the Housing Benefit (LHA)
-  amount is reduced
+  amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/income_disregard_lone.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/income_disregard_lone.yaml
@@ -1,5 +1,5 @@
 description: Threshold in income for a lone parent, above which the Housing Benefit
-  (LHA) amount is reduced
+  (LHA) amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/income_disregard_lone_parent.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/income_disregard_lone_parent.yaml
@@ -1,5 +1,5 @@
 description: Threshold in income for a lone parent, above which the Housing Benefit
-  (LHA) amount is reduced
+  (LHA) amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/income_disregard_single.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/income_disregard_single.yaml
@@ -1,5 +1,5 @@
 description: Threshold in income for a single person, above which the Housing Benefit
-  (LHA) amount is reduced
+  (LHA) amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/pension_disregard.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/pension_disregard.yaml
@@ -1,5 +1,5 @@
 description: Threshold in occupational and personal pensions, above which the Housing
-  Benefit (LHA) amount is reduced
+  Benefit (LHA) amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/withdrawal_rate.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/withdrawal_rate.yaml
@@ -1,4 +1,4 @@
-description: Withdrawal rate of Housing Benefit (LHA)
+description: Withdrawal rate of Housing Benefit (LHA).
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/worker_hours.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/worker_hours.yaml
@@ -1,5 +1,5 @@
 description: Default hours requirement for the Working-Tax-Credit-related worker element
-  of Housing Benefit (LHA)
+  of Housing Benefit (LHA).
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/means_test/worker_income_disregard.yaml b/policyengine_uk/parameters/gov/dwp/LHA/means_test/worker_income_disregard.yaml
@@ -1,4 +1,4 @@
-description: Additional disregard in income for meeting the 16/30 hours requirement
+description: Additional disregard in income for meeting the 16/30 hours requirement.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/LHA/shared_accommodation_age_threshold.yaml b/policyengine_uk/parameters/gov/dwp/LHA/shared_accommodation_age_threshold.yaml
@@ -1,4 +1,4 @@
-description: Age threshold below which single adults without children can only claim shared accommodation rates under LHA
+description: Age threshold below which single adults without children can only claim shared accommodation rates under LHA.
 values:
   2013-04-01: 35
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/benefit_cap.yaml b/policyengine_uk/parameters/gov/dwp/benefit_cap.yaml
@@ -1,4 +1,4 @@
-description: Benefit cap
+description: Benefit cap.
 single:
   metadata:
     label: Single claimants

diff --git a/policyengine_uk/parameters/gov/dwp/constant_attendance_allowance/exceptional_rate.yaml b/policyengine_uk/parameters/gov/dwp/constant_attendance_allowance/exceptional_rate.yaml
@@ -1,4 +1,4 @@
-description: Exceptional rate for Constant Attendance Allowance
+description: Exceptional rate for Constant Attendance Allowance.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/constant_attendance_allowance/full_day_rate.yaml b/policyengine_uk/parameters/gov/dwp/constant_attendance_allowance/full_day_rate.yaml
@@ -1,4 +1,4 @@
-description: Full day rate for Constant Attendance Allowance
+description: Full day rate for Constant Attendance Allowance.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/constant_attendance_allowance/intermediate_rate.yaml b/policyengine_uk/parameters/gov/dwp/constant_attendance_allowance/intermediate_rate.yaml
@@ -1,4 +1,4 @@
-description: Intermediate rate for Constant Attendance Allowance
+description: Intermediate rate for Constant Attendance Allowance.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/constant_attendance_allowance/part_day_rate.yaml b/policyengine_uk/parameters/gov/dwp/constant_attendance_allowance/part_day_rate.yaml
@@ -1,4 +1,4 @@
-description: Part day rate for Constant Attendance Allowance
+description: Part day rate for Constant Attendance Allowance.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/disability_premia/disability_couple.yaml b/policyengine_uk/parameters/gov/dwp/disability_premia/disability_couple.yaml
@@ -1,4 +1,4 @@
-description: Disability premium for a couple
+description: Disability premium for a couple.
 values:
   2015-04-01: 49.8
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/disability_premia/disability_single.yaml b/policyengine_uk/parameters/gov/dwp/disability_premia/disability_single.yaml
@@ -1,4 +1,4 @@
-description: Disability premium for a single person
+description: Disability premium for a single person.
 values:
   2015-04-01: 34.95
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/disability_premia/enhanced_couple.yaml b/policyengine_uk/parameters/gov/dwp/disability_premia/enhanced_couple.yaml
@@ -1,4 +1,4 @@
-description: Enhanced disability premium for a couple, invalid for Employment and Support Allowance
+description: Enhanced disability premium for a couple, invalid for Employment and Support Allowance.
 values:
   2015-04-01: 24.5
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/disability_premia/enhanced_single.yaml b/policyengine_uk/parameters/gov/dwp/disability_premia/enhanced_single.yaml
@@ -1,4 +1,4 @@
-description: Enhanced disability premium for a single person, invalid for Employment and Support Allowance
+description: Enhanced disability premium for a single person, invalid for Employment and Support Allowance.
 values:
   2015-04-01: 17.1
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/disability_premia/severe_couple.yaml b/policyengine_uk/parameters/gov/dwp/disability_premia/severe_couple.yaml
@@ -1,4 +1,4 @@
-description: Severe disability premium for a couple where both are eligible
+description: Severe disability premium for a couple where both are eligible.
 values:
   2015-04-01: 133.9
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/disability_premia/severe_single.yaml b/policyengine_uk/parameters/gov/dwp/disability_premia/severe_single.yaml
@@ -1,4 +1,4 @@
-description: Severe disability premium for a single person
+description: Severe disability premium for a single person.
 values:
   2015-04-01: 66.95
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_16_24.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_16_24.yaml
@@ -1,4 +1,4 @@
-description: Income Support applicable amount for single persons aged 18-24
+description: Income Support applicable amount for single persons aged 18-24.
 values:
   2015-04-01: 58.9
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_16_17.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_16_17.yaml
@@ -1,4 +1,4 @@
-description: Income Support applicable amount for couples both aged under 18
+description: Income Support applicable amount for couples both aged under 18.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_age_gap.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_age_gap.yaml
@@ -1,5 +1,5 @@
 description: Income Support applicable amount for couples in which one is under 18
-  and one over 25
+  and one over 25.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_over_18.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_couples_over_18.yaml
@@ -1,4 +1,4 @@
-description: Income Support applicable amount for couples aged over 18
+description: Income Support applicable amount for couples aged over 18.
 values:
   2015-04-01: 116.8
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_lone_16_17.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_lone_16_17.yaml
@@ -1,4 +1,4 @@
-description: Income Support applicable amount for lone parents aged under 18
+description: Income Support applicable amount for lone parents aged under 18.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_lone_over_18.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_lone_over_18.yaml
@@ -1,4 +1,4 @@
-description: Income Support applicable amount for lone parents aged over 18
+description: Income Support applicable amount for lone parents aged over 18.
 values:
   2015-04-01: 74.35
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_over_25.yaml b/policyengine_uk/parameters/gov/dwp/income_support/amounts/amount_over_25.yaml
@@ -1,4 +1,4 @@
-description: Income Support applicable amount for single persons aged over 25
+description: Income Support applicable amount for single persons aged over 25.
 values:
   2015-04-01: 74.35
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/means_test/earn_disregard.yaml b/policyengine_uk/parameters/gov/dwp/income_support/means_test/earn_disregard.yaml
@@ -1,4 +1,4 @@
-description: Threshold in earnings, above which the Income Support amount is reduced
+description: Threshold in earnings, above which the Income Support amount is reduced.
 metadata:
   economy: false
   period: week

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/means_test/income_disregard_couple.yaml b/policyengine_uk/parameters/gov/dwp/income_support/means_test/income_disregard_couple.yaml
@@ -1,4 +1,4 @@
-description: Threshold in income for a couple, above which the Income Support amount is reduced
+description: Threshold in income for a couple, above which the Income Support amount is reduced.
 values:
   2015-04-01: 10
 metadata:

diff --git a/...yengine_uk/parameters/gov/dwp/income_support/means_test/income_disregard_lone_parent.yaml b/...yengine_uk/parameters/gov/dwp/income_support/means_test/income_disregard_lone_parent.yaml
@@ -1,4 +1,4 @@
-description: Threshold in income for a lone parent, above which the Income Support amount is reduced
+description: Threshold in income for a lone parent, above which the Income Support amount is reduced.
 values:
   2015-04-01: 20
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/means_test/income_disregard_single.yaml b/policyengine_uk/parameters/gov/dwp/income_support/means_test/income_disregard_single.yaml
@@ -1,4 +1,4 @@
-description: Threshold in income for a single person, above which the Income Support amount is reduced
+description: Threshold in income for a single person, above which the Income Support amount is reduced.
 values:
   2015-04-01: 5
 metadata:

diff --git a/policyengine_uk/parameters/gov/dwp/income_support/means_test/pension_disregard.yaml b/policyengine_uk/parameters/gov/dwp/income_support/means_test/pension_disregard.yaml
@@ -1,5 +1,5 @@
 description: Threshold in occupational and personal pensions, above which the Income
-  Support amount is reduced
+  Support amount is reduced.
 metadata:
   economy: false
   period: week
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1 @@
		- Add a structural test that every parameter description ends with a period, and bring the existing 178 parameter files into compliance.