hendrik/services/agent_loop.py

69 lines
2.2 KiB
Python

import json
from datetime import datetime
def _ts():
return datetime.now().strftime('%H:%M:%S')
def execute_tool(tool_call, TOOL_HANDLERS):
tname = tool_call['function']['name']
targs = json.loads(tool_call['function']['arguments'])
handler = TOOL_HANDLERS.get(tname)
if not handler:
return f'Tool {tname} not found'
try:
if tname == 'search_code':
return handler(
pattern=targs['pattern'],
search_type=targs['search_type'],
path=targs.get('path', '.'),
)
elif tname == 'git_operation':
return handler(args=targs['args'])
else:
return handler(**targs)
except Exception as e:
return f'Error executing tool: {str(e)}'
def run_agent_loop(session, llm_client, TOOLS, TOOL_HANDLERS, max_iterations, on_tool_calls=None):
for step in range(max_iterations):
print(f'[{_ts()}] Step {step + 1} — calling LLM...')
response = llm_client.chat(session.messages, tools=TOOLS)
if response.tool_calls:
amsg = {
'role': 'assistant',
'content': response.content,
'tool_calls': response.tool_calls,
}
session.messages.append(amsg)
tnames = [tc['function']['name'] for tc in response.tool_calls]
print(f'[{_ts()}] Using tools: {", ".join(tnames)}')
if on_tool_calls:
on_tool_calls(tnames)
for tc in response.tool_calls:
result = execute_tool(tc, TOOL_HANDLERS)
session.messages.append({
'role': 'tool',
'tool_call_id': tc['id'],
'content': str(result),
})
else:
if response.content:
print(f'[{_ts()}] Response generated ({len(response.content)} chars)')
session.messages.append({'role': 'assistant', 'content': response.content})
return response.content
return None
print(f'[{_ts()}] Max iterations ({max_iterations}) reached')
session.messages.append({
'role': 'assistant',
'content': 'Max iterations reached without final answer.',
})
return None