Add verbose logging (-v) for config, API key and requests

picogent/cli.py

@@ -4,6 +4,7 @@ Command line interface for PicoGent
 
 import asyncio
 import argparse
+import logging
 import sys
 import os
 from .agent import Agent
@@ -13,6 +14,7 @@ from .config import Config
 async def main():
     """Main CLI entry point"""
     parser = argparse.ArgumentParser(description="PicoGent - Minimal AI Coding Agent")
+    parser.add_argument("--verbose", "-v", action="store_true", help="Enable debug logging")
     parser.add_argument("message", nargs="*", help="Message to send to the agent")
     parser.add_argument("--config", "-c", default="config.json", help="Config file path")
     parser.add_argument("--session", "-s", help="Session file path (JSONL)")
@@ -20,6 +22,14 @@ async def main():
     
     args = parser.parse_args()
     
+    # Setup logging
+    log_level = logging.DEBUG if args.verbose else logging.INFO
+    logging.basicConfig(
+        level=log_level,
+        format="[%(name)s] %(message)s",
+        stream=sys.stderr
+    )
+    
     # Join message parts
     message = " ".join(args.message) if args.message else None
     

picogent/config.py

@@ -23,29 +23,42 @@ class Config:
     @classmethod
     def from_file(cls, config_path: str) -> "Config":
         """Load configuration from JSON file"""
+        import logging
+        logger = logging.getLogger("picogent.config")
+
+        logger.info(f"Loading config from: {os.path.abspath(config_path)}")
         if not os.path.exists(config_path):
             raise FileNotFoundError(f"Config file not found: {config_path}")
         
         with open(config_path, 'r') as f:
             data = json.load(f)
         
+        provider = data.get('provider', 'anthropic')
+        model = data.get('model', 'claude-sonnet-4-20250514')
+        base_url = data.get('base_url', None)
+        logger.info(f"Provider: {provider} | Model: {model} | Base URL: {base_url}")
+
         # Resolve environment variables in API key
         api_key = data.get('api_key', '')
         if api_key.startswith('env:'):
             env_var = api_key[4:]  # Remove 'env:' prefix
+            logger.info(f"Resolving API key from env var: {env_var}")
             api_key = os.getenv(env_var, '')
             if not api_key:
                 raise ValueError(f"Environment variable {env_var} is not set")
-        
+            logger.info(f"API key resolved: {api_key[:8]}...{api_key[-4:]} (len={len(api_key)})")
+        else:
+            logger.info(f"API key from config: {api_key[:8]}...{api_key[-4:]} (len={len(api_key)})" if len(api_key) > 12 else f"API key from config: *** (len={len(api_key)})")
+
         return cls(
-            provider=data.get('provider', 'anthropic'),
-            model=data.get('model', 'claude-sonnet-4-20250514'),
+            provider=provider,
+            model=model,
             api_key=api_key,
             max_tokens=data.get('max_tokens', 8192),
             max_iterations=data.get('max_iterations', 20),
             workspace=data.get('workspace', '.'),
             system_prompt=data.get('system_prompt', 'You are a helpful coding assistant.'),
-            base_url=data.get('base_url', None)
+            base_url=base_url
         )
 
     def to_dict(self) -> Dict[str, Any]:

picogent/providers/anthropic.py

@@ -4,9 +4,12 @@ Anthropic Claude provider using httpx
 
 import httpx
 import json
+import logging
 from typing import Dict, List, Any, Optional
 from .base import BaseProvider
 
+logger = logging.getLogger("picogent.anthropic")
+
 
 class AnthropicProvider(BaseProvider):
     """Anthropic Claude provider using direct API calls"""
@@ -42,6 +45,10 @@ class AnthropicProvider(BaseProvider):
         if tools:
             payload["tools"] = tools
         
+        logger.info(f"POST {self.base_url}/messages | model={self.model} | key={self.api_key[:8]}...{self.api_key[-4:]} (len={len(self.api_key)})")
+        logger.debug(f"Headers: x-api-key={self.api_key[:8]}..., anthropic-version={self.anthropic_version}")
+        logger.debug(f"Messages count: {len(messages)}, tools: {len(tools) if tools else 0}")
+
         async with httpx.AsyncClient() as client:
             response = await client.post(
                 f"{self.base_url}/messages",
@@ -50,8 +57,10 @@ class AnthropicProvider(BaseProvider):
                 timeout=120.0
             )
             
+            logger.info(f"Response status: {response.status_code}")
             if response.status_code != 200:
                 error_text = response.text
+                logger.error(f"API error: {error_text}")
                 raise Exception(f"Anthropic API error {response.status_code}: {error_text}")
             
             result = response.json()