ml-intern / patch_agent_backend.py
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patches: agent_loop detection + auto-approve toggle
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"""Patch: agent_loop.py task detection + auto-approve for free models."""
import os
import ast
AGENT_LOOP = "/app/agent/core/agent_loop.py"
AGENT_FILE = "/app/backend/routes/agent.py"
SESSION_FILE = "/app/agent/core/session.py"
# ===== PATCH 1: agent_loop.py - detect model stopped mid-task =====
with open(AGENT_LOOP) as f:
c = f.read()
# Add helper function before class Handlers
if "_unfinished_plan" not in c:
fn = (
"\n\ndef _unfinished_plan(s):\n"
" p = getattr(s, 'current_plan', None) or []\n"
" return [it for it in p if it.get('status') in ('pending', 'in_progress')]\n\n"
)
c = c.replace("class Handlers:", fn + "class Handlers:")
print("OK: Added _unfinished_plan()")
# Add detection: if model produced no tool calls but content still exists,
# and plan items are still pending/in_progress, send session_update event
if "ac_plan" not in c:
check = (
"\n # Auto-continue: detect model stopped mid-task\n"
" if not llm_result.tool_calls_acc and llm_result.content:\n"
" unfinished = _unfinished_plan(session)\n"
" if unfinished:\n"
" await session.send_event(Event(event_type='session_update', data={\n"
" 'ac_plan': unfinished,\n"
" }))\n"
)
c = c.replace(" # -- End of turn --", check + " # -- End of turn --")
print("OK: Added mid-task detection")
try:
ast.parse(c)
with open(AGENT_LOOP, "w") as f:
f.write(c)
print("OK: agent_loop.py patched")
except SyntaxError as e:
print(f"FAIL: agent_loop.py syntax: {e}")
# ===== PATCH 2: Enable auto_approval for ALL sessions by default =====
# So free models don't block on user approval
with open(SESSION_FILE) as f:
c = f.read()
if "AUTO_APPROVE" not in c:
# Find where auto_approval is set on the session object
# Patch: when creating a new session, set auto_approval.enabled = True
auto_patch = (
"\n # === PATCH: Auto-approve for free models ===\n"
" self.auto_approval = {\n"
' "enabled": True,\n'
' "cost_cap_usd": None,\n'
' "estimated_spend_usd": 0.0,\n'
' "remaining_usd": None,\n'
" }\n"
)
# Find session init method
init_match = "class Session:"
if init_match in c:
# Insert after the class definition, find __init__
init_found = "def __init__"
if init_found in c:
# Find first line inside __init__ that's an assignment
init_start = c.find(init_found)
body_start = c.find("\n", init_start) + 1
body_start = c.find(" ", body_start) # first indented line
c = c[:body_start] + auto_patch + c[body_start:]
print("OK: Added auto_approve default")
try:
ast.parse(c)
with open(SESSION_FILE, "w") as f:
f.write(c)
print("OK: session.py patched")
except SyntaxError as e:
print(f"FAIL: session.py syntax: {e}")
# Don't block on this patch
else:
print("OK: session.py already has auto_approve")
print("DONE: Backend patches applied")