id: 018
narrative_anchor_date: '2028-01-01'
test: Create a historical growth brief for the mid-segment churn investigation’s pre-ruling H2 phase,
  using monthly churn as the metric of record. Include the active hypothesis, the planned historical comparison
  work, and the agreed owner and contents for each hypothesis-ruling one-pager, and label it clearly as
  a pre-ruling artifact.
load_bearing_facts:
- 323
- 319
- 316
expected_tool_calls:
- create_growth_brief
grade:
  type: tool_trace
  config:
    check_version: 2
    today: '2028-01-01'
    semantic_judge_version: 2
    assertions:
    - type: field_llm_judge
      tool: create_growth_brief
      action_id: create_h2_preruling_brief
      path: args
      criterion: 'The hypothesis identifies H2 as the active hypothesis for this phase and expresses the
        substantive hypothesis that a seasonal or competitor-cycle effect could explain the mid-segment
        churn spike.


        The brief describes the planned H2 comparison work: pull historical February or equivalent same-window
        churn comparisons by segment and align them with timestampable market dates and competitor activity
        or noise.


        The brief states that every hypothesis ruling, whether ruled in or ruled out, receives a one-pager
        authored by Owen containing the why, the cuts, p-value and effect-size details, and the final
        call.


        Considering the title and body together, the created brief is clearly labeled as a historical
        pre-ruling artifact and preserves a pre-decision posture rather than presenting H2 as already
        ruled.'
      check_id: riley_018_00
mock_state: {}