Files
autocoder/agent.py

286 lines
10 KiB
Python

"""
Agent Session Logic
===================
Core agent interaction functions for running autonomous coding sessions.
"""
import asyncio
import io
import re
import sys
from datetime import datetime, timedelta
from pathlib import Path
from typing import Optional
from zoneinfo import ZoneInfo
from claude_agent_sdk import ClaudeSDKClient
# Fix Windows console encoding for Unicode characters (emoji, etc.)
# Without this, print() crashes when Claude outputs emoji like ✅
if sys.platform == "win32":
sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding="utf-8", errors="replace")
sys.stderr = io.TextIOWrapper(sys.stderr.buffer, encoding="utf-8", errors="replace")
from client import create_client
from progress import has_features, print_progress_summary, print_session_header
from prompts import (
copy_spec_to_project,
get_coding_prompt,
get_coding_prompt_yolo,
get_initializer_prompt,
)
# Configuration
AUTO_CONTINUE_DELAY_SECONDS = 3
async def run_agent_session(
client: ClaudeSDKClient,
message: str,
project_dir: Path,
) -> tuple[str, str]:
"""
Run a single agent session using Claude Agent SDK.
Args:
client: Claude SDK client
message: The prompt to send
project_dir: Project directory path
Returns:
(status, response_text) where status is:
- "continue" if agent should continue working
- "error" if an error occurred
"""
print("Sending prompt to Claude Agent SDK...\n")
try:
# Send the query
await client.query(message)
# Collect response text and show tool use
response_text = ""
async for msg in client.receive_response():
msg_type = type(msg).__name__
# Handle AssistantMessage (text and tool use)
if msg_type == "AssistantMessage" and hasattr(msg, "content"):
for block in msg.content:
block_type = type(block).__name__
if block_type == "TextBlock" and hasattr(block, "text"):
response_text += block.text
print(block.text, end="", flush=True)
elif block_type == "ToolUseBlock" and hasattr(block, "name"):
print(f"\n[Tool: {block.name}]", flush=True)
if hasattr(block, "input"):
input_str = str(block.input)
if len(input_str) > 200:
print(f" Input: {input_str[:200]}...", flush=True)
else:
print(f" Input: {input_str}", flush=True)
# Handle UserMessage (tool results)
elif msg_type == "UserMessage" and hasattr(msg, "content"):
for block in msg.content:
block_type = type(block).__name__
if block_type == "ToolResultBlock":
result_content = getattr(block, "content", "")
is_error = getattr(block, "is_error", False)
# Check if command was blocked by security hook
if "blocked" in str(result_content).lower():
print(f" [BLOCKED] {result_content}", flush=True)
elif is_error:
# Show errors (truncated)
error_str = str(result_content)[:500]
print(f" [Error] {error_str}", flush=True)
else:
# Tool succeeded - just show brief confirmation
print(" [Done]", flush=True)
print("\n" + "-" * 70 + "\n")
return "continue", response_text
except Exception as e:
print(f"Error during agent session: {e}")
return "error", str(e)
async def run_autonomous_agent(
project_dir: Path,
model: str,
max_iterations: Optional[int] = None,
yolo_mode: bool = False,
) -> None:
"""
Run the autonomous agent loop.
Args:
project_dir: Directory for the project
model: Claude model to use
max_iterations: Maximum number of iterations (None for unlimited)
yolo_mode: If True, skip browser testing and use YOLO prompt
"""
print("\n" + "=" * 70)
print(" AUTONOMOUS CODING AGENT DEMO")
print("=" * 70)
print(f"\nProject directory: {project_dir}")
print(f"Model: {model}")
if yolo_mode:
print("Mode: YOLO (testing disabled)")
else:
print("Mode: Standard (full testing)")
if max_iterations:
print(f"Max iterations: {max_iterations}")
else:
print("Max iterations: Unlimited (will run until completion)")
print()
# Create project directory
project_dir.mkdir(parents=True, exist_ok=True)
# Check if this is a fresh start or continuation
# Uses has_features() which checks if the database actually has features,
# not just if the file exists (empty db should still trigger initializer)
is_first_run = not has_features(project_dir)
if is_first_run:
print("Fresh start - will use initializer agent")
print()
print("=" * 70)
print(" NOTE: First session takes 10-20+ minutes!")
print(" The agent is generating 200 detailed test cases.")
print(" This may appear to hang - it's working. Watch for [Tool: ...] output.")
print("=" * 70)
print()
# Copy the app spec into the project directory for the agent to read
copy_spec_to_project(project_dir)
else:
print("Continuing existing project")
print_progress_summary(project_dir)
# Main loop
iteration = 0
while True:
iteration += 1
# Check max iterations
if max_iterations and iteration > max_iterations:
print(f"\nReached max iterations ({max_iterations})")
print("To continue, run the script again without --max-iterations")
break
# Print session header
print_session_header(iteration, is_first_run)
# Create client (fresh context)
client = create_client(project_dir, model, yolo_mode=yolo_mode)
# Choose prompt based on session type
# Pass project_dir to enable project-specific prompts
if is_first_run:
prompt = get_initializer_prompt(project_dir)
is_first_run = False # Only use initializer once
else:
# Use YOLO prompt if in YOLO mode
if yolo_mode:
prompt = get_coding_prompt_yolo(project_dir)
else:
prompt = get_coding_prompt(project_dir)
# Run session with async context manager
async with client:
status, response = await run_agent_session(client, prompt, project_dir)
# Handle status
if status == "continue":
delay_seconds = AUTO_CONTINUE_DELAY_SECONDS
target_time_str = None
if response.lower().strip().startswith("limit reached"):
print("Claude Agent SDK indicated limit reached.")
# Try to parse reset time from response
match = re.search(
r"resets (\d+)(?::(\d+))?(am|pm) \(([^)]+)\)",
response,
re.IGNORECASE,
)
if match:
hour = int(match.group(1))
minute = int(match.group(2)) if match.group(2) else 0
period = match.group(3).lower()
tz_name = match.group(4)
# Convert to 24-hour format
if period == "pm" and hour != 12:
hour += 12
elif period == "am" and hour == 12:
hour = 0
try:
tz = ZoneInfo(tz_name)
now = datetime.now(tz)
target = now.replace(
hour=hour, minute=minute, second=0, microsecond=0
)
# If target time has already passed today, wait until tomorrow
if target <= now:
target += timedelta(days=1)
delta = target - now
delay_seconds = delta.total_seconds()
target_time_str = target.strftime("%B %d, %Y at %I:%M %p %Z")
except Exception as e:
print(f"Error parsing reset time: {e}, using default delay")
if target_time_str:
print(
f"\nClaude Code Limit Reached. Agent will auto-continue in {delay_seconds:.0f}s ({target_time_str})...",
flush=True,
)
else:
print(
f"\nAgent will auto-continue in {delay_seconds:.0f}s...", flush=True
)
sys.stdout.flush() # this should allow the pause to be displayed before sleeping
print_progress_summary(project_dir)
await asyncio.sleep(delay_seconds)
elif status == "error":
print("\nSession encountered an error")
print("Will retry with a fresh session...")
await asyncio.sleep(AUTO_CONTINUE_DELAY_SECONDS)
# Small delay between sessions
if max_iterations is None or iteration < max_iterations:
print("\nPreparing next session...\n")
await asyncio.sleep(1)
# Final summary
print("\n" + "=" * 70)
print(" SESSION COMPLETE")
print("=" * 70)
print(f"\nProject directory: {project_dir}")
print_progress_summary(project_dir)
# Print instructions for running the generated application
print("\n" + "-" * 70)
print(" TO RUN THE GENERATED APPLICATION:")
print("-" * 70)
print(f"\n cd {project_dir.resolve()}")
print(" ./init.sh # Run the setup script")
print(" # Or manually:")
print(" npm install && npm run dev")
print("\n Then open http://localhost:3000 (or check init.sh for the URL)")
print("-" * 70)
print("\nDone!")