Layer order and event years

Sequence order is the application order. Event years must stay the same or increase as the list progresses.

Several layers announced in the same year

schema_version: 1
layers:
  - name: USA tariff increase
    data_file: usa_tariffs.csv
    event_year: 2025
  - name: Trading-partner retaliation
    data_file: retaliation.csv
    event_year: 2025
  - name: Monetary-policy response
    data_file: monetary_policy.csv
    event_year: 2025

All information arrives in 2025. The order still matters: tariff increase, retaliation, then monetary-policy response.

Information arriving later

schema_version: 1
layers:
  - name: Initial announcement
    data_file: initial_announcement.csv
    event_year: 2025
  - name: Revised announcement
    data_file: revised_announcement.csv
    event_year: 2026

Invalid decreasing years

layers:
  - name: Later information
    data_file: later.csv
    event_year: 2027
  - name: Earlier information
    data_file: earlier.csv
    event_year: 2026

G-Cubed rejects this order. Move the 2026 layer before the 2027 layer; the run script does not silently sort the design.

Layer filenames and CSV data