Astraea | AI Contract Analysis

\n \n

\n Select Legal Playbook\n \n

\n Contract Text\n \n

\n \n \n

\n\n

\n\n\n\n`;\n}\n\n/**\n * Extracts a JSON object from a string that may contain conversational text.\n * @param {string} text - The raw string from the AI response.\n * @returns {object | null} The parsed JSON object or null if not found.\n */\nfunction extractJson(text) {\n if (!text) return null;\n const match = text.match(/\\{.*\\}/s);\n if (!match) {\n return null;\n }\n try {\n return JSON.parse(match[0]);\n } catch (e) {\n console.error(\"Failed to parse extracted JSON:\", e);\n return null;\n }\n}\n\nexport default async function (req: Request) {\n const url = new URL(req.url);\n\n if (req.method === \"POST\") {\n try {\n const openai = new OpenAI();\n const { playbookName, contractText } = await req.json();\n\n if (!playbookName || !contractText) {\n throw new Error(\n \"Missing 'playbookName' or 'contractText' in request body.\",\n );\n }\n\n const playbook = PLAYBOOKS[playbookName];\n if (!playbook) {\n throw new Error(`Invalid playbook name: ${playbookName}.`);\n }\n\n const userMessage = `\n Contract Text:\n ---\n ${contractText}\n ---\n\n Legal Playbook:\n ---\n ${JSON.stringify(playbook)}\n ---\n `;\n\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o\",\n messages: [\n { role: \"system\", content: LEGAL_ANALYSIS_PROMPT },\n { role: \"user\", content: userMessage },\n ],\n temperature: 0.1, // Low temperature for deterministic, rule-based output\n response_format: { type: \"json_object\" },\n });\n\n const rawContent = completion.choices[0].message.content;\n const parsedContent = extractJson(rawContent);\n\n if (!parsedContent || !parsedContent.analysis) {\n console.error(\n \"AI Response did not contain a valid 'analysis' key. Raw content:\",\n rawContent,\n );\n throw new Error(\n \"The AI returned a response in an unexpected format. Please try again.\",\n );\n }\n\n return new Response(JSON.stringify(parsedContent), {\n headers: { \"Content-Type\": \"application/json\" },\n });\n } catch (error) {\n console.error(\"Contract Analysis Error:\", error);\n return new Response(\n JSON.stringify({\n error: error.message || \"An internal server error occurred.\",\n }),\n {\n status: 500,\n headers: { \"Content-Type\": \"application/json\" },\n },\n );\n }\n }\n\n // Serve HTML for GET requests\n const sourceUrl = `https://${url.hostname}${url.pathname}`;\n return new Response(generateHtml(sourceUrl), {\n headers: { \"Content-Type\": \"text/html\" },\n });\n}","deleted","label",[98],"permalink","https://www.val.town/x/real/Contract/code/main.tsx","extension","actionData","errors"]