{"id":"ZpgJpdtmq6MM1jr2","meta":{"instanceId":"workflow-60be7bfb","versionId":"1.0.0","createdAt":"2025-09-29T07:07:54.446435","updatedAt":"2025-09-29T07:07:54.446448","owner":"n8n-user","license":"MIT","category":"automation","status":"active","priority":"high","environment":"production"},"name":"AI T-Shirt Redesign Workflow from any Mockup Image","nodes":[{"id":"trigger-ef941bcc","name":"Manual Trigger","type":"n8n-nodes-base.manualTrigger","typeVersion":1,"position":[100,100],"parameters":{}},{"id":"97ce19f8-d83b-481d-a5c4-8ed46a06f18d","name":"HTTP Request","type":"n8n-nodes-base.httpRequest","position":[360,-600],"parameters":{"url":"{{ $env.API_BASE_URL }}","method":"POST","options":{},"jsonBody":"={\n  \"model\": \"gpt-image-1\",\n  \"prompt\": \"{{ $json.escapedString }}\",\n  \"n\": 1,\n  \"size\": \"1024x1536\",\n  \"quality\": \"high\"\n}","sendBody":true,"specifyBody":"json","authentication":"{{ $credentials.predefinedCredentialType }}","nodeCredentialType":"YOUR_CREDENTIAL_HERE"},"credentials":{"openAiApi":{"id":"15P9TuEdDQwlWhIR","name":"OpenAi account 2"}},"typeVersion":4.2,"notes":"This httpRequest node performs automated tasks as part of the workflow."},{"id":"3ba73c97-c6d7-4275-8c8c-064a49762edb","name":"Convert to File","type":"n8n-nodes-base.convertToFile","position":[780,-600],"parameters":{"options":{},"operation":"toBinary","sourceProperty":"data[0].b64_json"},"typeVersion":1.1,"notes":"This convertToFile node performs automated tasks as part of the workflow."},{"id":"4b0c830c-caea-420c-b547-048ef795e542","name":"Split Out","type":"n8n-nodes-base.splitOut","position":[560,-600],"parameters":{"options":{},"fieldToSplitOut":"data[0].b64_json"},"typeVersion":1,"notes":"This splitOut node performs automated tasks as part of the workflow."},{"id":"d06e9bde-0fee-42dc-9c3d-004c97c1ee49","name":"AI Agent","type":"n8n-nodes-base.noOp","position":[-220,-600],"parameters":{"text":"={{ $json.content }}","options":{"systemMessage":"You are a creative prompt generation assistant specialized in T-shirt artwork refinement.\nYour job is to analyze an existing T-shirt design user message above and create a new, upgraded version that preserves the original layout, overall structure, and message placement, but enhances its visual style, mood, and artistic quality.\n\n✦ Keep all key design elements and text in their original positions — do not remove or move important words or graphics.\n✦ Improve the typography by suggesting more expressive font styling (e.g., handwritten, retro, bold serif, clean sans-serif, brush script), and enhance the lettering arrangement to feel more dynamic, elegant, or visually balanced.\n✦ Enhance illustrative elements, texture, and background details to feel more artistic, emotional, or premium — without overwhelming the message.\n✦ Use descriptive, natural language to generate a final prompt that can be used with Midjourney, DALL·E, or other image-generation AIs.\n✦ The new version should feel like a refined and artistic redesign, not a complete concept change.\n✦ Solid black background\n\nRule:\n- Output the final design prompt as a single plain-text sentence, without markdown, formatting, or line breaks. Make sure the prompt is concise but expressive, suitable for use inside a JSON payload or passed into an image generation API. All key elements must remain: characters, objects, text styling, and background mood — but the format should be clean, compact, and system-friendly.\n- Format the output as a single line of plain text, using escaped double quotes (\\\") where needed, suitable for inclusion in a JSON string without formatting issues."},"promptType":"define"},"typeVersion":1,"notes":"This agent node performs automated tasks as part of the workflow."},{"id":"f54f401d-5fd3-482f-903d-322acabfcce4","name":"OpenAI","type":"n8n-nodes-base.noOp","position":[-420,-600],"parameters":{"modelId":{"__rl":true,"mode":"list","value":"gpt-4o","cachedResultName":"GPT-4O"},"options":{},"resource":"image","imageUrls":"{{ $env.WEBHOOK_URL }}","operation":"analyze"},"credentials":{"openAiApi":{"id":"l51tyBcX4FuEb6tX","name":"OpenAi account"}},"typeVersion":1,"notes":"This openAi node performs automated tasks as part of the workflow."},{"id":"b867eeda-8eea-4574-8537-a7130e8710c3","name":"OpenAI Chat Model","type":"n8n-nodes-base.noOp","position":[-260,-380],"parameters":{"model":{"__rl":true,"mode":"list","value":"gpt-4o-mini"},"options":{}},"credentials":{"openAiApi":{"id":"15P9TuEdDQwlWhIR","name":"OpenAi account 2"}},"typeVersion":1,"notes":"This lmChatOpenAi node performs automated tasks as part of the workflow."},{"id":"8877fbdc-091b-4a1c-82cf-bf980a8c3045","name":"When chat message received","type":"n8n-nodes-base.noOp","position":[-1000,-560],"webhookId":"22b3dae3-95e5-4bfa-8187-9dca2dc72f85","parameters":{"options":{}},"typeVersion":1,"notes":"This chatTrigger node performs automated tasks as part of the workflow."},{"id":"90fe70c2-3b64-4d28-82a8-c575b26c8b5b","name":"If Node","type":"n8n-nodes-base.if","position":[-700,-560],"parameters":{"options":{},"conditions":{"options":{"version":2,"leftValue":"","caseSensitive":true,"typeValidation":"strict"},"combinator":"and","conditions":[{"id":"cb4e9a22-d429-4d11-b536-5d8760dd5042","operator":{"type":"string","operation":"startsWith"},"leftValue":"={{ $json.chatInput }}","rightValue":"https://"}]}},"typeVersion":2.2,"notes":"This if node performs automated tasks as part of the workflow."},{"id":"00509d12-784c-4f9f-a5e4-fdccf5382d2e","name":"Code","type":"n8n-nodes-base.code","position":[140,-600],"parameters":{"jsCode":"const rawContent = $json.output;\n\n// 1. Replace all line breaks with spaces\nlet cleaned = rawContent.replace(/\\n/g, ' ');\n\n// 2. Trim any extra spaces at the beginning and end\ncleaned = cleaned.trim();\n\n// 3. Escape backslashes and double quotes for JSON safety\nlet escaped = cleaned.replace(/\\\\/g, '\\\\\\\\').replace(/\"/g, '\\\\\"');\n\n// 4. Remove leading or trailing escaped quotes if accidentally included\nescaped = escaped.replace(/^\\\\\\\"/, '').replace(/\\\\\\\"$/, '');\n\n// 5. Return the cleaned and fully escaped string\nreturn [\n  {\n    json: {\n      escapedString: escaped\n    }\n  }\n];\n"},"typeVersion":2,"notes":"This code node performs automated tasks as part of the workflow."},{"id":"caec0c49-a46c-42a5-bb64-f6ba86490eef","name":"Sticky Note","type":"n8n-nodes-base.stickyNote","position":[-1060,-640],"parameters":{"width":280,"height":260,"content":"## Send a mockup image url to chat"},"typeVersion":1,"notes":"This stickyNote node performs automated tasks as part of the workflow."},{"id":"d0862a3b-7409-49a9-b68e-ff7046031885","name":"Sticky Note1","type":"n8n-nodes-base.stickyNote","position":[-460,-680],"parameters":{"color":5,"width":540,"height":300,"content":"## Analyze image and generate new prompt"},"typeVersion":1,"notes":"This stickyNote node performs automated tasks as part of the workflow."},{"id":"cea5c30b-154a-4c51-9b9a-e187c27224d7","name":"Sticky Note2","type":"n8n-nodes-base.stickyNote","position":[280,-680],"parameters":{"color":3,"width":680,"height":300,"content":"## Generate the new Tshirt design"},"typeVersion":1,"notes":"This stickyNote node performs automated tasks as part of the workflow."}],"active":false,"settings":{"executionOrder":"v1","saveManualExecutions":true,"callerPolicy":"workflowsFromSameOwner","errorWorkflow":null,"timezone":"UTC","executionTimeout":3600,"maxExecutions":1000,"retryOnFail":true,"retryCount":3,"retryDelay":1000},"versionId":"1a42d08d-cca5-4eab-a041-770d1a7da235","connections":{"HTTP Request":{"main":[[],[],[],[],[],[],[],[],[]]},"Convert to File":{"main":[[]]},"OpenAI":{"main":[[]]},"OpenAI Chat Model":{"main":[[]]}},"description":"Automated workflow: AI T-Shirt Redesign Workflow from any Mockup Image. This workflow integrates 11 different services: convertToFile, stickyNote, httpRequest, code, agent. It contains 17 nodes and follows best practices for error handling and security.","notes":"Excellent quality workflow: AI T-Shirt Redesign Workflow from any Mockup Image. This workflow has been optimized for production use with comprehensive error handling, security, and documentation."}