remove boiler plate prompt

cht/agent/claude_sdk_connection.py

@@ -31,18 +31,6 @@ from cht.agent.base import (
 
 log = logging.getLogger(__name__)
 
-SYSTEM_PROMPT = """You are an assistant integrated into CHT, a screen recording and analysis tool.
-You help the user understand what happened during their recording session.
-
-You have access to frame screenshots extracted from the recording. When frames are mentioned,
-use the Read tool to view them. Frame timestamps are in seconds from the start of the recording.
-
-You can use any available tools including WebFetch and WebSearch when the user asks you to
-look something up. Use them freely — all tools are pre-authorized.
-
-Your primary role is description and analysis, not code generation. Be concise and specific.
-Focus on what's visible in the frames and what's in the transcript."""
-
 MODELS = [
     "claude-sonnet-4-6",
     "claude-opus-4-6",
@@ -144,7 +132,6 @@ class ClaudeSDKConnection:
                     options=ClaudeAgentOptions(
                         model=self._model,
                         cwd=cwd or ".",
-                        system_prompt=SYSTEM_PROMPT,
                         max_turns=self._max_turns,
                         permission_mode=self._permission_mode,
                     ),