diff --git a/bun.lock b/bun.lock
index 6fe23d9..cc3fcdc 100644
--- a/bun.lock
+++ b/bun.lock
@@ -53,7 +53,7 @@
     },
     "packages/plugins/nexus-service": {
       "name": "@microvoid/convax-plugin-nexus-service",
-      "version": "0.3.6",
+      "version": "0.3.7",
       "dependencies": {
         "@microvoid/convax-nexus-mcp": "workspace:*"
       }
@@ -191,7 +191,7 @@
     },
     "packages/tools/nexus-mcp": {
       "name": "@microvoid/convax-nexus-mcp",
-      "version": "0.3.5",
+      "version": "0.3.6",
       "bin": {
         "convax-nexus-mcp": "dist/convax-nexus-mcp"
       },
diff --git a/packages/plugins/nexus-service/convax-package.json b/packages/plugins/nexus-service/convax-package.json
index 65e5ab3..3cd791f 100644
--- a/packages/plugins/nexus-service/convax-package.json
+++ b/packages/plugins/nexus-service/convax-package.json
@@ -4,7 +4,7 @@
   "id": "nexus-service",
   "name": "Nexus · OpenRouter",
   "description": "Connects Convax to the Convax Workspace in Nexus for OpenRouter chat and live image-model generation through short-lived Data Tokens.",
-  "version": "0.3.6",
+  "version": "0.3.7",
   "license": "MIT",
   "compatibility": {
     "pluginSchema": "convax.plugin/7",
@@ -13,7 +13,7 @@
   "companions": [
     {
       "command": "convax-nexus-mcp",
-      "version": "0.3.5",
+      "version": "0.3.6",
       "source": "packages/tools/nexus-mcp",
       "targets": [
         {
diff --git a/packages/plugins/nexus-service/package.json b/packages/plugins/nexus-service/package.json
index c885d97..a111bc7 100644
--- a/packages/plugins/nexus-service/package.json
+++ b/packages/plugins/nexus-service/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@microvoid/convax-plugin-nexus-service",
-  "version": "0.3.6",
+  "version": "0.3.7",
   "private": true,
   "type": "module",
   "dependencies": {
diff --git a/packages/plugins/nexus-service/package/manifest.json b/packages/plugins/nexus-service/package/manifest.json
index 2af3327..bb1fbf0 100644
--- a/packages/plugins/nexus-service/package/manifest.json
+++ b/packages/plugins/nexus-service/package/manifest.json
@@ -3,7 +3,7 @@
   "id": "nexus-service",
   "name": "Nexus · OpenRouter",
   "description": "Connects Convax to the Convax Workspace in Nexus for OpenRouter chat and live image-model generation through short-lived Data Tokens.",
-  "version": "0.3.6",
+  "version": "0.3.7",
   "contributes": {
     "generation": {
       "models": [
diff --git a/packages/tools/nexus-mcp/package.json b/packages/tools/nexus-mcp/package.json
index 1bbfd47..87fecd9 100644
--- a/packages/tools/nexus-mcp/package.json
+++ b/packages/tools/nexus-mcp/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@microvoid/convax-nexus-mcp",
-  "version": "0.3.5",
+  "version": "0.3.6",
   "private": true,
   "license": "MIT",
   "type": "module",
diff --git a/packages/tools/nexus-mcp/src/image-generator.ts b/packages/tools/nexus-mcp/src/image-generator.ts
index 54dbd15..54c0747 100644
--- a/packages/tools/nexus-mcp/src/image-generator.ts
+++ b/packages/tools/nexus-mcp/src/image-generator.ts
@@ -103,7 +103,10 @@ export class NexusImageGenerator {
         } finally {
           await handle.close();
         }
-        artifacts.push({ mimeType: image.mimeType, name, path: outputPath });
+        // Convax owns output_directory and admits only portable paths relative
+        // to it. Keep the native path private to this writer and return the
+        // generated file name through the MCP result contract.
+        artifacts.push({ mimeType: image.mimeType, name, path: name });
       }
       return artifacts;
     } catch (error) {
diff --git a/packages/tools/nexus-mcp/test/image-generator.test.ts b/packages/tools/nexus-mcp/test/image-generator.test.ts
index 773a4df..e5f4e57 100644
--- a/packages/tools/nexus-mcp/test/image-generator.test.ts
+++ b/packages/tools/nexus-mcp/test/image-generator.test.ts
@@ -70,8 +70,10 @@ describe("NexusImageGenerator", () => {
     expect(first[0]).toMatchObject({
       mimeType: "image/png",
       name: "nexus-operation-123-1.png",
+      path: "nexus-operation-123-1.png",
     });
-    expect(await fs.readFile(first[0]!.path)).toEqual(png);
+    expect(path.isAbsolute(first[0]!.path)).toBe(false);
+    expect(await fs.readFile(path.join(root, first[0]!.path))).toEqual(png);
   });
 
   test("rejects a model that is no longer in the image-output catalog", async () => {