fixture_id: 04_explicit_slash_command
expected_routing_class: proceed
expected_destination: academic-paper:lit-review
escape_hatch_applied: false
notes: |
  Slash command `/ars-lit-review` is an explicit invocation. Per Routing Discipline
  Step 1, route directly with no clarification, no orchestrator detour.

  Pass criteria:
  - Response begins lit-review work
  - Response does NOT clarify
