release v1.0.49

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@musistudio/claude-code-router",
-  "version": "1.0.48",
+  "version": "1.0.49",
   "description": "Use Claude Code without an Anthropics account and route it to another LLM provider",
   "bin": {
     "ccr": "./dist/cli.js"

src/index.ts

@@ -358,12 +358,16 @@ async function run(options: RunOptions = {}) {
         return done(null, originalStream)
       }
       sessionUsageCache.put(req.sessionId, payload.usage);
-    }
       if (typeof payload ==='object') {
         if (payload.error) {
           return done(payload.error, null)
+        } else {
+          return done(payload, null)
         }
-      return done(payload)
+      }
+    }
+    if (typeof payload ==='object' && payload.error) {
+      return done(payload.error, null)
     }
     done(null, payload)
   });

src/utils/router.ts

@@ -5,6 +5,7 @@ import {
 } from "@anthropic-ai/sdk/resources/messages";
 import { get_encoding } from "tiktoken";
 import { sessionUsageCache, Usage } from "./cache";
+import { readFile } from 'fs/promises'
 
 const enc = get_encoding("cl100k_base");
 
@@ -147,6 +148,11 @@ export const router = async (req: any, _res: any, context: any) => {
   }
   const lastMessageUsage = sessionUsageCache.get(req.sessionId);
   const { messages, system = [], tools }: MessageCreateParamsBase = req.body;
+  if (config.REWRITE_SYSTEM_PROMPT && system.length > 1 && system[1]?.text?.includes('<env>')) {
+    const prompt = await readFile(config.REWRITE_SYSTEM_PROMPT, 'utf-8');
+    system[1].text = `${prompt}<env>${system[1].text.split('<env>').pop()}`
+  }
+
   try {
     const tokenCount = calculateTokenCount(
       messages as MessageParam[],