⚡ Advanced Prompt Studio

Generate production-ready prompts with variables, format control, and dynamic testing

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⚙️ Configuration

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\n Task Description\n \n

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\n Response Format\n \n

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\n JSON Schema (optional)\n \n

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\n Structure Format\n \n

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\n Response Style\n \n

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\n Language\n \n

\n Tone\n \n

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\n \n Require reasoning before conclusions\n

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\n \n Require citations\n

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\n Additional Instructions\n \n

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📝 Variables

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Add Variable

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📄 Generated Prompt

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\n Generate a prompt to see it here\n

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🧪 Test Prompt

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Result:

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💾 Saved Prompts

No prompts saved yet

\n\n \n\n`;\n}\n\n// --- HONO APP SETUP ---\nconst app = new Hono();\n\n// Serve HTML frontend\napp.get(\"/\", (c) => {\n const url = new URL(c.req.url);\n const sourceUrl = `https://${url.hostname}${url.pathname}`;\n return c.html(generateHtml(sourceUrl));\n});\n\n// Generate prompt endpoint\napp.post(\"/api/generate\", async (c) => {\n try {\n const config: PromptConfig = await c.req.json();\n\n if (!config.taskDescription || config.taskDescription.trim().length < 10) {\n return c.json({\n error: \"Task description must be at least 10 characters\",\n }, 400);\n }\n\n const openai = new OpenAI();\n const userRequest = buildPromptGenerationRequest(config);\n\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o\",\n messages: [\n { role: \"system\", content: PROMPT_ARCHITECT_SYSTEM },\n { role: \"user\", content: userRequest },\n ],\n temperature: 0.7,\n });\n\n const prompt = completion.choices[0].message.content;\n\n return c.json({ prompt });\n } catch (error) {\n console.error(\"Error generating prompt:\", error);\n return c.json(\n { error: \"Failed to generate prompt: \" + error.message },\n 500,\n );\n }\n});\n\n// Test prompt endpoint\napp.post(\"/api/test\", async (c) => {\n try {\n const { prompt, inputs } = await c.req.json();\n\n if (!prompt) {\n return c.json({ error: \"Prompt is required\" }, 400);\n }\n\n const openai = new OpenAI();\n\n // Replace variables in the prompt with actual values\n let finalPrompt = prompt;\n Object.entries(inputs).forEach(([key, value]) => {\n const regex = new RegExp(`\\\\{\\\\{${key}\\\\}\\\\}`, \"g\");\n finalPrompt = finalPrompt.replace(regex, value as string);\n });\n\n // Build user message from inputs\n const userMessage = Object.entries(inputs)\n .map(([key, value]) => `${key}: ${value}`)\n .join(\"\\n\");\n\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o\",\n messages: [\n { role: \"system\", content: finalPrompt },\n { role: \"user\", content: userMessage || \"Process this request.\" },\n ],\n temperature: 0.7,\n });\n\n const result = completion.choices[0].message.content;\n\n return c.json({ result });\n } catch (error) {\n console.error(\"Error testing prompt:\", error);\n return c.json({ error: \"Failed to test prompt: \" + error.message }, 500);\n }\n});\n\nexport default app.fetch;","deleted","label",[99],"permalink","https://www.val.town/x/volt/promptly/code/main.ts","extension","actionData","errors"]