Migrate to Claude Agent SDK framework (v0.2.0)
BREAKING CHANGE: Replaced FastAPI server wrapper with direct Claude Agent SDK integration ## Major Changes ### Architecture - **OLD:** Bot → FastAPI Server → claude-code-sdk → Claude - **NEW:** Bot → Claude Agent SDK → Claude (Pro subscription OR API) - Eliminated HTTP server overhead - Single-process architecture ### LLM Backend (llm_interface.py) - Implemented Claude Agent SDK as DEFAULT mode - Added three-mode architecture: - agent-sdk (default) - Uses Pro subscription - direct-api - Pay-per-token Anthropic API - legacy-server - Backward compat with old setup - Created async/sync bridge using anyio - Preserved all existing functionality (17 tools, memory, scheduling) ### Dependencies (requirements.txt) - Replaced: claude-code-sdk → claude-agent-sdk>=0.1.0 - Added: anyio>=4.0.0 for async bridging - Removed: fastapi, uvicorn (no longer needed for default mode) ### New Files - ajarbot.py - Unified launcher with pre-flight checks - run.bat - Windows one-command launcher (auto-setup) - pyproject.toml - Python package metadata - MIGRATION.md - Upgrade guide from old setup - AGENT_SDK_IMPLEMENTATION.md - Technical documentation - QUICK_REFERENCE_AGENT_SDK.md - Quick reference card - test_agent_sdk.py - Comprehensive test suite ### Updated Documentation - CLAUDE_CODE_SETUP.md - Rewritten for Agent SDK - README.md - Updated quick start for new default - .env.example - Added AJARBOT_LLM_MODE configuration ### Deleted Files - claude_code_server.py - Replaced by agent-sdk integration - heartbeat.py - Superseded by scheduled_tasks.py - pulse_brain.py - Unused in production ## Migration Path Old setup: 1. Start FastAPI server: python claude_code_server.py 2. Start bot: python bot_runner.py 3. Set USE_CLAUDE_CODE_SERVER=true New setup: 1. Run: run.bat (or python ajarbot.py) - That's it! Single command. ## Benefits ✅ Zero API costs (uses Claude Pro subscription) ✅ Simplified deployment (no separate server) ✅ Single-command launch (run.bat) ✅ Faster response times (no HTTP overhead) ✅ All functionality preserved (17 tools, memory, adapters) ✅ Backward compatible (old env vars still work) ## Compatibility - Python 3.10+ required - Node.js required (for Claude Code CLI bundled with SDK) - Windows 11 tested and optimized - All existing tools, memory system, and adapters unchanged Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
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# Migration Guide: FastAPI Server to Agent SDK
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This guide helps you upgrade from the old FastAPI server setup to the new Claude Agent SDK integration.
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## What Changed?
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### Old Architecture (Deprecated)
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```
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Bot → FastAPI Server (localhost:8000) → Claude Code SDK → Claude
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```
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- Required running `claude_code_server.py` in separate terminal
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- Only worked with Pro subscription
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- More complex setup with multiple processes
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### New Architecture (Current)
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```
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Bot → Claude Agent SDK → Claude (Pro OR API)
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```
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- Single process (no separate server)
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- Works with Pro subscription OR API key
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- Simpler setup and operation
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- Same functionality, less complexity
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## Migration Steps
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### Step 1: Update Dependencies
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Pull latest code and reinstall dependencies:
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```bash
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git pull
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pip install -r requirements.txt
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```
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This installs `claude-agent-sdk` and removes deprecated dependencies.
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### Step 2: Update Environment Configuration
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Edit your `.env` file:
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**Remove these deprecated variables:**
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```bash
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# DELETE THESE
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USE_CLAUDE_CODE_SERVER=true
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CLAUDE_CODE_SERVER_URL=http://localhost:8000
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```
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**Add new mode selection:**
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```bash
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# ADD THIS
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AJARBOT_LLM_MODE=agent-sdk # Use Pro subscription (default)
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# OR
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AJARBOT_LLM_MODE=api # Use pay-per-token API
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```
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**If using API mode**, ensure you have:
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```bash
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ANTHROPIC_API_KEY=sk-ant-...
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```
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**If using agent-sdk mode**, authenticate once:
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```bash
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claude auth login
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```
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### Step 3: Stop Old Server
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The FastAPI server is no longer needed:
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1. Stop any running `claude_code_server.py` processes
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2. Remove it from startup scripts/systemd services
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3. Optionally archive or delete `claude_code_server.py` (kept for reference)
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### Step 4: Use New Launcher
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**Old way:**
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```bash
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# Terminal 1
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python claude_code_server.py
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# Terminal 2
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python bot_runner.py
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```
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**New way:**
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```bash
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# Single command
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run.bat # Windows
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python ajarbot.py # Linux/Mac
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```
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The new launcher:
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- Runs pre-flight checks (Node.js, authentication, config)
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- Sets sensible defaults (agent-sdk mode)
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- Starts bot in single process
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- No separate server needed
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### Step 5: Test Your Setup
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Run health check:
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```bash
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python ajarbot.py --health
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```
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Expected output (agent-sdk mode):
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```
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============================================================
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Ajarbot Pre-Flight Checks
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============================================================
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✓ Python 3.10.x
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✓ Node.js found: v18.x.x
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✓ Claude CLI authenticated
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[Configuration Checks]
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✓ Config file found: config/adapters.local.yaml
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Pre-flight checks complete!
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============================================================
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```
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### Step 6: Verify Functionality
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Test that everything works:
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1. **Start the bot:**
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```bash
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run.bat # or python ajarbot.py
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```
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2. **Send a test message** via Slack/Telegram
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3. **Verify tools work:**
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- Ask bot to read a file
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- Request calendar events
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- Test scheduled tasks
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All features are preserved:
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- 15 tools (file ops, Gmail, Calendar, Contacts)
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- Memory system with hybrid search
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- Multi-platform adapters
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- Task scheduling
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## Mode Comparison
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Choose the mode that fits your use case:
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| Feature | Agent SDK Mode | API Mode |
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|---------|---------------|----------|
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| **Cost** | $20/month (Pro) | ~$0.25-$3/M tokens |
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| **Setup** | `claude auth login` | API key in `.env` |
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| **Requirements** | Node.js + Claude CLI | Just Python |
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| **Best For** | Personal heavy use | Light use, production |
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| **Rate Limits** | Pro subscription limits | API rate limits |
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### Switching Between Modes
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You can switch anytime by editing `.env`:
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```bash
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# Switch to agent-sdk
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AJARBOT_LLM_MODE=agent-sdk
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# Switch to API
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AJARBOT_LLM_MODE=api
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ANTHROPIC_API_KEY=sk-ant-...
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```
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No code changes needed - just restart the bot.
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## Troubleshooting
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### "Node.js not found" (Agent SDK mode)
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**Option 1: Install Node.js**
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```bash
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# Download from https://nodejs.org
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# Or via package manager:
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winget install OpenJS.NodeJS # Windows
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brew install node # Mac
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sudo apt install nodejs # Ubuntu/Debian
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```
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**Option 2: Switch to API mode**
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```bash
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# In .env
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AJARBOT_LLM_MODE=api
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ANTHROPIC_API_KEY=sk-ant-...
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```
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### "Claude CLI not authenticated"
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```bash
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# Check status
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claude auth status
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# Re-authenticate
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claude auth logout
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claude auth login
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```
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If Claude CLI isn't installed, download from: https://claude.ai/download
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### "Agent SDK not available"
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```bash
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pip install claude-agent-sdk
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```
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If installation fails, use API mode instead.
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### Old Environment Variables Still Set
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Check your `.env` file for deprecated variables:
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```bash
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# These should NOT be in your .env:
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USE_CLAUDE_CODE_SERVER=true
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CLAUDE_CODE_SERVER_URL=http://localhost:8000
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USE_AGENT_SDK=true
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USE_DIRECT_API=true
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```
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Delete them and use `AJARBOT_LLM_MODE` instead.
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### Bot Works But Features Missing
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Ensure you have latest code:
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```bash
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git pull
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pip install -r requirements.txt --upgrade
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```
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All features from the old setup are preserved:
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- Tools system (15 tools)
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- Memory with hybrid search
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- Scheduled tasks
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- Google integration
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- Multi-platform adapters
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### Performance Issues
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**Agent SDK mode:**
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- May hit Pro subscription rate limits
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- Temporary solution: Switch to API mode
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- Long-term: Wait for limit reset (usually 24 hours)
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**API mode:**
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- Check usage with: `python -c "from usage_tracker import UsageTracker; UsageTracker().print_summary()"`
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- Costs shown in usage_data.json
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- Default Haiku model is very cheap (~$0.04/day moderate use)
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## Rollback Plan
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If you need to rollback to the old setup:
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1. **Restore old .env settings:**
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```bash
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USE_CLAUDE_CODE_SERVER=true
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CLAUDE_CODE_SERVER_URL=http://localhost:8000
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```
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2. **Start the old server:**
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```bash
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python claude_code_server.py
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```
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3. **Run bot with old method:**
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```bash
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python bot_runner.py
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```
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However, the new setup is recommended - same functionality with less complexity.
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## What's Backward Compatible?
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All existing functionality is preserved:
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- Configuration files (`config/adapters.local.yaml`, `config/scheduled_tasks.yaml`)
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- Memory database (`memory_workspace/memory.db`)
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- User profiles (`memory_workspace/users/`)
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- Google OAuth tokens (`config/google_oauth_token.json`)
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- Tool definitions and capabilities
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- Adapter integrations
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You can safely migrate without losing data or functionality.
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## Benefits of New Setup
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1. **Simpler operation**: Single command to start
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2. **Flexible modes**: Choose Pro subscription OR API
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3. **Automatic checks**: Pre-flight validation before starting
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4. **Better errors**: Clear messages about missing requirements
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5. **Less complexity**: No multi-process coordination
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6. **Same features**: All 15 tools, adapters, scheduling preserved
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## Need Help?
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- Review [CLAUDE_CODE_SETUP.md](CLAUDE_CODE_SETUP.md) for detailed mode documentation
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- Check [README.md](README.md) for quick start guides
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- Run `python ajarbot.py --health` to diagnose issues
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- Open an issue if you encounter problems
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## Summary
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**Before:**
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```bash
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# Terminal 1
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python claude_code_server.py
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# Terminal 2
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python bot_runner.py
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```
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**After:**
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```bash
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# .env
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AJARBOT_LLM_MODE=agent-sdk # or "api"
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# Single command
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run.bat # Windows
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python ajarbot.py # Linux/Mac
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```
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Same features, less complexity, more flexibility.
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Reference in New Issue
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