diff --git a/grimoire-runner/src/grimoire_runner/services/template_service.py b/grimoire-runner/src/grimoire_runner/services/template_service.py
index b7678ab..c0666fd 100644
--- a/grimoire-runner/src/grimoire_runner/services/template_service.py
+++ b/grimoire-runner/src/grimoire_runner/services/template_service.py
@@ -115,6 +115,12 @@ def _try_parse_structured_data(self, result: str) -> Any:
         except ValueError:
             pass
 
+        # Explicitly handle boolean strings
+        if result.lower() == "true":
+            return True
+        elif result.lower() == "false":
+            return False
+
         # Try JSON for clearly JSON-formatted results
         if (result.startswith("{") and result.endswith("}")) or (
             result.startswith("[") and result.endswith("]")
diff --git a/systems/knave_1e/flows/roll_saving_throw.advantage.yaml b/systems/knave_1e/fixtures/flows/roll_saving_throw.advantage.yaml
similarity index 100%
rename from systems/knave_1e/flows/roll_saving_throw.advantage.yaml
rename to systems/knave_1e/fixtures/flows/roll_saving_throw.advantage.yaml
diff --git a/systems/knave_1e/flows/roll_saving_throw.basic.yaml b/systems/knave_1e/fixtures/flows/roll_saving_throw.basic.yaml
similarity index 100%
rename from systems/knave_1e/flows/roll_saving_throw.basic.yaml
rename to systems/knave_1e/fixtures/flows/roll_saving_throw.basic.yaml
diff --git a/systems/knave_1e/flows/roll_saving_throw.disadvantage.yaml b/systems/knave_1e/fixtures/flows/roll_saving_throw.disadvantage.yaml
similarity index 100%
rename from systems/knave_1e/flows/roll_saving_throw.disadvantage.yaml
rename to systems/knave_1e/fixtures/flows/roll_saving_throw.disadvantage.yaml
diff --git a/systems/knave_1e/flows/roll_saving_throw.test_failure.yaml b/systems/knave_1e/fixtures/flows/roll_saving_throw.test_failure.yaml
similarity index 100%
rename from systems/knave_1e/flows/roll_saving_throw.test_failure.yaml
rename to systems/knave_1e/fixtures/flows/roll_saving_throw.test_failure.yaml
diff --git a/systems/knave_1e/flows/roll_saving_throw.test_success.yaml b/systems/knave_1e/fixtures/flows/roll_saving_throw.test_success.yaml
similarity index 100%
rename from systems/knave_1e/flows/roll_saving_throw.test_success.yaml
rename to systems/knave_1e/fixtures/flows/roll_saving_throw.test_success.yaml
diff --git a/systems/knave_1e/flows/add_items_to_character.yaml b/systems/knave_1e/flows/add_items_to_character.yaml
deleted file mode 100644
index b76bb03..0000000
--- a/systems/knave_1e/flows/add_items_to_character.yaml
+++ /dev/null
@@ -1,43 +0,0 @@
-id: "add_items_to_character"
-type: "flow"
-name: "Add Items to Character"
-description: "Add multiple items to a character's inventory"
-version: "1.0"
-
-inputs:
-  - type: "character"
-    id: "character"
-    required: true
-    description: "The character to add the items to"
-  - type: "list"
-    id: "items"
-    required: true
-    description: "The list of items to add to the character's inventory"
-
-outputs:
-  - type: "character"
-    id: "character"
-    description: "The updated character with the new items"
-
-variables: {}
-
-steps:
-  - id: "add_items"
-    name: "Add Items to Inventory"
-    type: "completion"
-    # TODO: When flow calling is fully implemented, replace this with:
-    # for each item in inputs.items:
-    #   flow_call: add_item_to_character(character=character, item=item)
-    # This will ensure capacity checks and other validation logic is reused
-    actions:
-      - set_value:
-          path: "outputs.character.inventory"
-          value: "{{ (inputs.character.inventory | default([])) + inputs.items }}"
-      - log_event:
-          message: "Added {{ inputs.items | length }} items to {{ inputs.character.name or 'Unnamed Character' }}: {{ inputs.items | map(attribute='display_name') | join(', ') }}. Inventory: {{ ((inputs.character.inventory | default([])) + inputs.items) | length }} slots used / {{ inputs.character.inventory_capacity }} capacity"
-          data:
-            character_name: "{{ inputs.character.name }}"
-            items_added: "{{ inputs.items | map(attribute='display_name') | list }}"
-            items_count: "{{ inputs.items | length }}"
-            slots_used_after: "{{ (inputs.character.inventory + inputs.items) | sum(attribute='slot_cost') }}"
-            inventory_capacity: "{{ inputs.character.inventory_capacity }}"