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app.py

@@ -125,104 +125,36 @@ def generate_workflow(prompt, temperature=0.5, max_tokens=1024):
     if not prompt.strip():
         return "Please enter a workflow description.", None, None
 
-    # IMPORTANT: Use the exact format the model was trained with (including EXPANDED node list!)
+    # ULTRA-OPTIMIZED: Minimal tokens, maximal parameter guidance
     formatted_prompt = f"""### System:
-You are an expert n8n workflow generator. n8n is a powerful workflow automation tool that connects various services and APIs.
-
-Your task is to generate TypeScript DSL code for n8n workflows based on user requests.
-
-## Available n8n Nodes (Top 40 Most Common):
-
-### TRIGGERS:
-- n8n-nodes-base.webhook, n8n-nodes-base.scheduleTrigger, n8n-nodes-base.manualTrigger
-- n8n-nodes-base.formTrigger, n8n-nodes-base.executeWorkflowTrigger
-
-### ACTIONS:
-- n8n-nodes-base.slack, n8n-nodes-base.gmail, n8n-nodes-base.telegram, n8n-nodes-base.discord
-- n8n-nodes-base.httpRequest (for API calls, including GitHub, etc.)
-
-### DATA STORAGE:
-- n8n-nodes-base.googleSheets, n8n-nodes-base.googleDrive, n8n-nodes-base.airtable, n8n-nodes-base.notion
-- n8n-nodes-base.postgres, n8n-nodes-base.github (for GitHub operations)
-
-### DATA PROCESSING:
-- n8n-nodes-base.if, n8n-nodes-base.switch, n8n-nodes-base.set, n8n-nodes-base.filter
-- n8n-nodes-base.merge, n8n-nodes-base.splitOut, n8n-nodes-base.splitInBatches
-- n8n-nodes-base.aggregate, n8n-nodes-base.wait
-
-### UTILITIES:
-- n8n-nodes-base.code, n8n-nodes-base.function, n8n-nodes-base.noOp, n8n-nodes-base.stopAndError
-- n8n-nodes-base.executeWorkflow, n8n-nodes-base.respondToWebhook
-- n8n-nodes-base.html, n8n-nodes-base.extractFromFile, n8n-nodes-base.stickyNote
-
-## IMPORTANT: Parameter Generation Rules
-
-When generating workflows, you MUST fill in ALL required parameters with realistic values based on the user's request:
-
-### For GitHub nodes:
-- Always include: "owner", "repository", "resource", "operation"
-- Example: {{"owner": "username", "repository": "repo-name", "resource": "issue", "operation": "getAll"}}
-
-### For Email nodes (gmail/email/emailSend):
-- Always include: "to", "subject", "message"
-- Example: {{"to": "recipient@example.com", "subject": "Email Subject", "message": "Email body content"}}
-
-### For Slack/Discord/Telegram:
-- Always include: "channel" or "chatId", "text" or "message"
-- Example: {{"channel": "#general", "text": "Message content"}}
-
-### For Database nodes (postgres/mysql/redis):
-- Always include: "operation", "table" or "key"
-- Example: {{"operation": "select", "table": "users"}}
-
-### For HTTP Request:
-- Always include: "url", "method"
-- Example: {{"url": "https://api.example.com/endpoint", "method": "GET"}}
-
-### For Schedule Trigger:
-- Always include: "rule" with cron expression
-- Example: {{"rule": {{"interval": [{{"field": "cronExpression", "expression": "0 9 * * *"}}]}}}}
-
-### For Error Handling (stopAndError):
-- Always include: "message"
-- Example: {{"message": "Error: Operation failed"}}
-
-### For Conditional nodes (if/switch):
-- Always include: "conditions" or "rules"
-- Example: {{"conditions": [{{"value1": "={{{{ $json.status }}}}", "operation": "equals", "value2": "active"}}]}}
-
-## DSL Syntax:
-
-```typescript
-const workflow = new Workflow('Workflow Name');
-
-// Add nodes with COMPLETE parameters
-const triggerNode = workflow.add('n8n-nodes-base.webhook', {{
-  path: '/webhook-path',
-  method: 'POST'
-}});
-
-const actionNode = workflow.add('n8n-nodes-base.slack', {{
-  channel: '#general',
-  text: 'Message: {{{{ $json.message }}}}'  // Use n8n expressions for dynamic data
-}});
-
-// Connect nodes
-triggerNode.to(actionNode);
-```
-
-## Guidelines:
-1. Always start with a trigger node
-2. Use descriptive workflow names based on the user's request
-3. Connect nodes logically (use .to() for connections)
-4. **FILL IN ALL REQUIRED PARAMETERS** - don't leave them empty!
-5. Infer parameter values from the user's prompt (e.g., if they mention "GitHub issues", use {{"resource": "issue", "operation": "getAll"}})
-6. Use realistic placeholder values (e.g., "user@example.com", "#general", "daily-report")
-7. For schedules, use appropriate cron expressions (daily = "0 9 * * *", hourly = "0 * * * *")
-8. Only use nodes from the list above
-9. Use n8n expressions {{{{ $json.field }}}} to reference data from previous nodes
-
-Generate ONLY the TypeScript DSL code, wrapped in ```typescript code blocks.
+You are an expert n8n workflow generator.
+
+## Core Rules:
+1. Always start with a trigger node (webhook, scheduleTrigger, manualTrigger, formTrigger, emailTrigger)
+2. **CRITICAL: Fill ALL required parameters with realistic values**
+3. Connect nodes with .to() method
+4. Use descriptive workflow names
+
+## Parameter Rules (MUST FOLLOW):
+
+**GitHub nodes:** {{"owner": "username", "repository": "repo-name", "resource": "issue", "operation": "getAll"}}
+**Email (gmail/email):** {{"to": "user@example.com", "subject": "Subject", "message": "Content"}}
+**Messaging (slack/telegram/discord):** {{"channel": "#general", "text": "Message"}}
+**HTTP requests:** {{"url": "https://api.example.com/endpoint", "method": "GET"}}
+**Schedule triggers:** {{"rule": {{"interval": [{{"field": "cronExpression", "expression": "0 9 * * *"}}]}}}}
+**Database (postgres/mysql):** {{"operation": "select", "table": "table_name"}}
+**Conditionals (if/switch):** {{"conditions": [{{"value1": "={{{{ $json.field }}}}", "operation": "equals", "value2": "value"}}]}}
+**Error handlers:** {{"message": "Error: description"}}
+
+## Common Nodes:
+Triggers: webhook, scheduleTrigger, manualTrigger, formTrigger, emailTrigger
+Actions: slack, gmail, telegram, discord, httpRequest, googleSheets, airtable, notion
+Processing: if, switch, set, filter, merge, split, aggregate, sort, code, function
+Utilities: wait, noOp, stopAndError
+
+**IMPORTANT:** Infer parameter values from user request (e.g., "GitHub issues" → resource: "issue", operation: "getAll", "daily" → cron: "0 9 * * *")
+
+Generate ONLY TypeScript DSL code in ```typescript blocks.
 
 ### Instruction:
 {prompt}