CB-WP-0037 done: T03 classification and T04 evidence

Reading Player_Mats.csv and Glossary.csv — which O4 had forbidden
declaring about until they were read — found a rule. Player_Mats'
choice_rule column IS GR-R03: at Stress 4-5 choose ATTACK or GROUND unless
you spend a ready Freedom token. The engine's stress_gated and
allowed_under_stress_gate match it exactly, and now have a tripwire.

So Ornamentation.md gains §1.3: the unit is a column, not a file.
Classifying Player_Mats as ornamentation would have thrown a rule away
with the colour swatches. A mixed artifact is normal — a player mat is a
rule printed on a decorated card in the box too. O4 is rewritten and
re-grounded from provisional to rule accordingly.

O5, O6, O7 declared with falsifiers. O7's is not theoretical:
back_design_id is unread in four vendored files, and hidden information is
what card backs are for.

CB-EV-0029 answers T04's question per rule rather than as a count — yes,
every checkable clause — and states the reading that result does NOT
support: it shows GroundRules.md was a faithful secondary source for the
clauses with behaviour to check, not that the engine is correct.

10 of 19 files vendored. Nine still unread, and Rules_Text.csv is the one
that matters: every clause checked here was checked against our own
transcription of it.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

trials/2026-08-08-0019.yaml

@@ -0,0 +1,149 @@
+scenario: ground/cb-play-session
+description: recorded by cb-play (CB-WP-0008 T02)
+covers: []
+provisional: false
+provisional_owner: ''
+provisional_raised: ''
+ruled: ''
+ruled_by: ''
+ruled_note: ''
+encodes_u_item: ''
+seed: 1
+setup:
+  players: 3
+  preset: standard-3p
+  patch: {}
+commands:
+- actor: P1
+  cmd: select_action
+  args:
+    action: INVESTIGATE
+    problem: 2
+- actor: P2
+  cmd: select_action
+  args:
+    action: SOLVE
+    problem: 1
+- actor: P3
+  cmd: select_action
+  args:
+    action: SOLVE
+    problem: 1
+- actor: SYSTEM
+  cmd: reveal
+  args: {}
+- actor: SYSTEM
+  cmd: resolve
+  args: {}
+- actor: SYSTEM
+  cmd: end_round
+  args: {}
+- actor: P1
+  cmd: select_action
+  args:
+    action: INVESTIGATE
+    problem: 3
+- actor: P2
+  cmd: select_action
+  args:
+    action: INVESTIGATE
+    problem: 3
+- actor: P3
+  cmd: select_action
+  args:
+    action: INVESTIGATE
+    problem: 3
+- actor: SYSTEM
+  cmd: reveal
+  args: {}
+- actor: SYSTEM
+  cmd: resolve
+  args: {}
+- actor: SYSTEM
+  cmd: end_round
+  args: {}
+- actor: P1
+  cmd: select_action
+  args:
+    action: SOLVE
+    problem: 3
+- actor: P2
+  cmd: select_action
+  args:
+    action: INVESTIGATE
+    problem: 4
+- actor: P3
+  cmd: select_action
+  args:
+    action: SOLVE
+    problem: 2
+- actor: SYSTEM
+  cmd: reveal
+  args: {}
+- actor: SYSTEM
+  cmd: resolve
+  args: {}
+- actor: SYSTEM
+  cmd: end_round
+  args: {}
+- actor: P1
+  cmd: select_action
+  args:
+    action: SOLVE
+    problem: 4
+- actor: P2
+  cmd: select_action
+  args:
+    action: SUPPORT
+    target: P1
+- actor: P3
+  cmd: select_action
+  args:
+    action: SOLVE
+    problem: 4
+- actor: SYSTEM
+  cmd: reveal
+  args: {}
+- actor: P1
+  cmd: respond_to_support
+  args:
+    response: accept_bond
+- actor: SYSTEM
+  cmd: resolve
+  args: {}
+- actor: SYSTEM
+  cmd: end_round
+  args: {}
+- actor: P1
+  cmd: select_action
+  args:
+    action: SUPPORT
+    target: P3
+- actor: P2
+  cmd: select_action
+  args:
+    action: SUPPORT
+    target: P1
+- actor: P3
+  cmd: select_action
+  args:
+    action: SUPPORT
+    target: P1
+- actor: SYSTEM
+  cmd: reveal
+  args: {}
+- actor: P3
+  cmd: respond_to_support
+  args:
+    response: accept_bond
+- actor: SYSTEM
+  cmd: resolve
+  args: {}
+- actor: SYSTEM
+  cmd: end_round
+  args: {}
+expect:
+  events: []
+  state: {}
+  rejects: []
+  state_hash: 6bee3941bb6a5fc0b02273d404799103c4150bcc328f7902532dec40a21c7ee3