fix for prompt caching sonnet by short openrouter name

Author: jahooma

common/src/old-constants.ts

@@ -299,6 +299,13 @@ export const providerModelNames = {
 
 export type Model = (typeof models)[keyof typeof models] | (string & {})
 
+export const shouldCacheModels = [
+  'anthropic/claude-opus-4.1',
+  'anthropic/claude-sonnet-4',
+  'anthropic/claude-opus-4',
+  'anthropic/claude-3.7-sonnet',
+  'anthropic/claude-3.5-haiku',
+]
 const nonCacheableModels = [
   models.openrouter_grok_4,
 ] satisfies string[] as string[]

common/src/util/model-utils.ts

@@ -8,8 +8,11 @@ function getExplicitlyDefinedModels(): Set<string> {
   if (explicitlyDefinedModels === null) {
     // Dynamically import to avoid circular dependency issues
     // eslint-disable-next-line @typescript-eslint/no-var-requires
-    const { models } = require('../old-constants')
-    explicitlyDefinedModels = new Set(Object.values(models) as string[])
+    const { models, shouldCacheModels } = require('../old-constants')
+    explicitlyDefinedModels = new Set([
+      ...(Object.values(models) as string[]),
+      ...(Object.values(shouldCacheModels) as string[]),
+    ])
   }
   return explicitlyDefinedModels
 }