Prompt Expander

Enter a short prompt and get an expanded, more detailed version.

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Expanding your prompt...

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Expanded Prompt:

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\n\n \n\n`;\n\n/**\n * Expands a short prompt into a more detailed one using AI\n */\nasync function expandPrompt(prompt: string, expansionType: string): Promise {\n let systemPrompt = \"You are an expert prompt engineer. Your task is to expand the user's short prompt into a more detailed, specific, and effective prompt.\";\n \n switch (expansionType) {\n case \"detailed\":\n systemPrompt += \" Focus on adding specific details, context, and parameters that make the prompt more precise.\";\n break;\n case \"creative\":\n systemPrompt += \" Focus on adding creative elements, imaginative details, and artistic direction to the prompt.\";\n break;\n case \"technical\":\n systemPrompt += \" Focus on adding technical specifications, precise terminology, and structured parameters to the prompt.\";\n break;\n case \"storytelling\":\n systemPrompt += \" Focus on adding narrative elements, character details, plot points, and setting descriptions to the prompt.\";\n break;\n default:\n systemPrompt += \" Provide a balanced expansion with additional details and context.\";\n }\n \n systemPrompt += \" Maintain the original intent of the prompt while making it more comprehensive.\";\n\n try {\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o-mini\", // Using a smaller model for cost efficiency\n messages: [\n { role: \"system\", content: systemPrompt },\n { role: \"user\", content: `Please expand this prompt: \"${prompt}\"` }\n ],\n temperature: 0.7,\n max_tokens: 500,\n });\n\n return completion.choices[0].message.content || \"Sorry, I couldn't expand your prompt.\";\n } catch (error) {\n console.error(\"Error expanding prompt:\", error);\n throw new Error(\"Failed to expand prompt using AI\");\n }\n}\n\n/**\n * Main handler for HTTP requests\n */\nexport default async function(req: Request): Promise {\n const url = new URL(req.url);\n \n // Handle the expand API endpoint\n if (url.pathname === \"/expand\") {\n if (req.method !== \"POST\") {\n return new Response(\"Method not allowed\", { status: 405 });\n }\n \n try {\n const body = await req.json();\n const { prompt, expansionType } = body;\n \n if (!prompt) {\n return new Response(JSON.stringify({ error: \"Prompt is required\" }), {\n status: 400,\n headers: { \"Content-Type\": \"application/json\" }\n });\n }\n \n const expandedPrompt = await expandPrompt(prompt, expansionType || \"detailed\");\n \n return new Response(JSON.stringify({ expandedPrompt }), {\n headers: { \"Content-Type\": \"application/json\" }\n });\n } catch (error) {\n console.error(\"Error processing request:\", error);\n return new Response(JSON.stringify({ error: \"Failed to process request\" }), {\n status: 500,\n headers: { \"Content-Type\": \"application/json\" }\n });\n }\n }\n \n // Serve the main HTML page for all other routes\n return new Response(html, {\n headers: { \"Content-Type\": \"text/html\" }\n });\n}","deleted","label",[98],"permalink","https://www.val.town/x/pro3/sa_pro1/code/prompt-expander.ts","extension","actionData","errors"]