moved generate_image from being attached to the workflow

apps/rowboat/app/lib/default_tools.ts

@@ -0,0 +1,34 @@
+import { z } from 'zod';
+
+// Returns the list of built-in tools that should appear by default
+// in the workflow editor and be usable at runtime without attaching
+// them to the workflow. These are displayed as read-only library tools.
+// Note: avoid importing WorkflowTool here to prevent circular deps.
+// Return a structurally compatible object instead.
+export function getDefaultTools(): Array<any> {
+  // Always expose built-in library tools in the editor so users can
+  // discover them. Runtime invocation will still validate required
+  // environment variables and return an error if missing.
+
+  return [
+    {
+      name: 'Generate Image',
+      description:
+        'Generate an image using Google Gemini given a text prompt. Returns base64-encoded image data and any text parts.',
+      isGeminiImage: true,
+      isLibrary: true,
+      parameters: {
+        type: 'object',
+        properties: {
+          prompt: {
+            type: 'string',
+            description: 'Text prompt describing the image to generate',
+          },
+          modelName: { type: 'string', description: 'Optional Gemini model override' },
+        },
+        required: ['prompt'],
+        additionalProperties: true,
+      },
+    },
+  ];
+}

apps/rowboat/app/lib/project_templates.ts

@@ -3,7 +3,6 @@ import { z } from 'zod';
 
 // Provide a minimal default template to satisfy legacy code paths that
 // still reference `templates.default`. Real templates are DB-backed.
-const includeGeminiImageTool = !!process.env.GOOGLE_API_KEY;
 
 const defaultTemplate: z.infer<typeof WorkflowTemplate> = {
     name: 'Blank Template',
@@ -11,22 +10,7 @@ const defaultTemplate: z.infer<typeof WorkflowTemplate> = {
     startAgent: "",
     agents: [],
     prompts: [],
-    tools: includeGeminiImageTool ? [
-        {
-            name: "Generate Image",
-            description: "Generate an image using Google Gemini given a text prompt. Returns base64-encoded image data and any text parts.",
-            isGeminiImage: true,
-            parameters: {
-                type: 'object',
-                properties: {
-                    prompt: { type: 'string', description: 'Text prompt describing the image to generate' },
-                    modelName: { type: 'string', description: 'Optional Gemini model override' },
-                },
-                required: ['prompt'],
-                additionalProperties: true,
-            },
-        },
-    ] : [],
+    tools: [],
     pipelines: [],
 };
 

apps/rowboat/app/lib/types/workflow_types.ts

@@ -1,4 +1,5 @@
 import { z } from "zod";
+import { getDefaultTools } from "@/app/lib/default_tools";
 export const WorkflowAgent = z.object({
     name: z.string(),
     order: z.number().int().optional(),
@@ -165,7 +166,10 @@ export function sanitizeTextWithMentions(
                 const agent = workflow.agents.find(a => a.name === entity.name);
                 return agent && agent.type !== 'pipeline';
             } else if (entity.type === 'tool') {
-                return workflow.tools.some(t => t.name === entity.name);
+                // Allow referencing workflow tools or default library tools
+                const inWorkflow = workflow.tools.some(t => t.name === entity.name);
+                const inDefaults = getDefaultTools().some(t => t.name === entity.name);
+                return inWorkflow || inDefaults;
             } else if (entity.type === 'prompt') {
                 return workflow.prompts.some(p => p.name === entity.name);
             } else if (entity.type === 'pipeline') {