fix(grafana): surface invalid JSON for annotations/labels/data on alert rules

Match the behavior of other JSON params (data, notificationSettings, record):
return a descriptive error instead of silently falling back to {} (create)
or keeping the existing value (update).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: waleedlatif1

apps/sim/tools/grafana/create_alert_rule.ts

@@ -185,15 +185,15 @@ export const createAlertRuleTool: ToolConfig<
         try {
           body.annotations = JSON.parse(params.annotations)
         } catch {
-          body.annotations = {}
+          throw new Error('Invalid JSON for annotations parameter')
         }
       }
 
       if (params.labels) {
         try {
           body.labels = JSON.parse(params.labels)
         } catch {
-          body.labels = {}
+          throw new Error('Invalid JSON for labels parameter')
         }
       }
 

apps/sim/tools/grafana/update_alert_rule.ts

@@ -219,7 +219,11 @@ export const updateAlertRuleTool: ToolConfig<GrafanaUpdateAlertRuleParams, ToolR
       try {
         updatedRule.data = JSON.parse(params.data)
       } catch {
-        // Keep existing data if parse fails
+        return {
+          success: false,
+          output: {},
+          error: 'Invalid JSON for data parameter',
+        }
       }
     }
 
@@ -230,7 +234,11 @@ export const updateAlertRuleTool: ToolConfig<GrafanaUpdateAlertRuleParams, ToolR
           ...JSON.parse(params.annotations),
         }
       } catch {
-        // Keep existing annotations if parse fails
+        return {
+          success: false,
+          output: {},
+          error: 'Invalid JSON for annotations parameter',
+        }
       }
     }
 
@@ -241,7 +249,11 @@ export const updateAlertRuleTool: ToolConfig<GrafanaUpdateAlertRuleParams, ToolR
           ...JSON.parse(params.labels),
         }
       } catch {
-        // Keep existing labels if parse fails
+        return {
+          success: false,
+          output: {},
+          error: 'Invalid JSON for labels parameter',
+        }
       }
     }