diff --git a/README.md b/README.md
index 4806c5b..ff73533 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ Add to your OpenCode config:
 ```jsonc
 // opencode.jsonc
 {
-  "plugin": ["@tarquinen/opencode-dcp@0.3.21"]
+  "plugin": ["@tarquinen/opencode-dcp@0.3.22"]
 }
 ```
 
diff --git a/lib/fetch-wrapper/gemini.ts b/lib/fetch-wrapper/gemini.ts
index 527c00a..1055700 100644
--- a/lib/fetch-wrapper/gemini.ts
+++ b/lib/fetch-wrapper/gemini.ts
@@ -78,12 +78,15 @@ export async function handleGemini(
                         contentModified = true
                         replacedCount++
                         // Preserve thoughtSignature if present (required for Gemini 3 Pro)
-                        // Only replace the response content, not the structure
+                        // response must be a Struct (object), not a plain string
                         return {
                             ...part,
                             functionResponse: {
                                 ...part.functionResponse,
-                                response: PRUNED_CONTENT_MESSAGE
+                                response: {
+                                    name: part.functionResponse.name,
+                                    content: PRUNED_CONTENT_MESSAGE
+                                }
                             }
                         }
                     }
diff --git a/package-lock.json b/package-lock.json
index 92b3e11..4340a3a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@tarquinen/opencode-dcp",
-  "version": "0.3.21",
+  "version": "0.3.22",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@tarquinen/opencode-dcp",
-      "version": "0.3.21",
+      "version": "0.3.22",
       "license": "MIT",
       "dependencies": {
         "@ai-sdk/openai-compatible": "^1.0.27",
diff --git a/package.json b/package.json
index ea9361c..7f422e3 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@tarquinen/opencode-dcp",
-  "version": "0.3.21",
+  "version": "0.3.22",
   "type": "module",
   "description": "OpenCode plugin that optimizes token usage by pruning obsolete tool outputs from conversation context",
   "main": "./dist/index.js",