Automatically add Anthropic "\n\nHuman:" preamble when necessary (khanon/oai-reverse-proxy!23)

src/proxy/middleware/request/transform-outbound-payload.ts

@@ -153,19 +153,10 @@ function openaiToAnthropic(body: any, req: Request) {
   // Remove duplicates
   stops = [...new Set(stops)];
 
-  // TEMP: More shitty anthropic API hacks
-  // If you receive a 400 Bad Request error from Anthropic complaining about
-  // "prompt must start with a '\n\nHuman: ' turn", enable this setting.
-  // I will try to fix this when I can identify why it only happens sometimes.
-  let preamble = "";
-  if (process.env.CLAUDE_ADD_HUMAN_PREAMBLE) {
-    preamble = "\n\nHuman: Hello Claude.";
-  }
-
   return {
     ...rest,
     model,
-    prompt: preamble + prompt,
+    prompt: prompt,
     max_tokens_to_sample: rest.max_tokens,
     stop_sequences: stops,
   };