**app/models/operations/feature_flag.rb:**

- Adds limitable concern.

**spec/models/operations/feature_flag_spec.rb:**

- Adds tests for limits.

**changelogs/unreleased/feature-flag-plan-limits.yml:**

- the changelog

**db/migrate/
20200831204646_add_project_feature_flags_to_plan_limits.rb:**

- the column

**db/migrate/
20200831222347_insert_project_feature_flags_plan_limits.rb:**

- the settings

**db/schema_migrations/20200831204646:**

- migration artifact

**db/schema_migrations/20200831222347:**

- migration artifact

**db/structure.sql:**

- structure update

**spec/migrations/
insert_project_feature_flags_plan_limits_spec.rb:**

- spec tests for the migration