Clear PLAN.md after Stage 1 completion

PLAN.md

@@ -1,218 +1,8 @@
-# Implementation Plan - Stage 1: Foundation Setup
+# Implementation Plan
 
-**Date:** 2026-01-01
-**Dev Record:** [dev/dev_260101_10_implementation_process_design.md](dev/dev_260101_10_implementation_process_design.md)
-**Status:** Planning
+**Status:** Ready for next stage
+**Last Updated:** 2026-01-02
 
-## Objective
+---
 
-Set up infrastructure foundation for GAIA benchmark agent implementation based on Level 6 (LangGraph framework) and Level 7 (HF Spaces hosting) architectural decisions. Establish working development environment with LangGraph, configure API keys, and validate basic agent execution.
-
-## Steps
-
-### Step 1: Project Dependencies Setup
-
-**1.1 Create requirements.txt**
-
-- Add LangGraph core dependencies
-- Add LLM SDK dependencies (Anthropic, Google Generative AI, HuggingFace Inference)
-- Add tool dependencies (Exa SDK, requests, file parsers)
-- Add existing dependencies (gradio, pandas)
-
-**1.2 Install dependencies locally**
-
-- Use `uv pip install -r requirements.txt` for local testing
-- Verify LangGraph installation with import test
-
-### Step 2: Environment Configuration
-
-**2.1 Create .env.example template**
-
-- Document required API keys (ANTHROPIC_API_KEY, GOOGLE_API_KEY, EXA_API_KEY, etc.)
-- Add GAIA API configuration (DEFAULT_API_URL, SPACE_ID)
-
-**2.2 Configure HF Secrets (production)**
-
-- Set ANTHROPIC_API_KEY in HF Space settings
-- Set GOOGLE_API_KEY for Gemini Flash baseline
-- Set EXA_API_KEY for web search tool
-- Verify Space can access environment variables
-
-### Step 3: Project Structure Creation
-
-**3.1 Create module directories**
-
-```
-16_HuggingFace/Final_Assignment_Template/
-├── src/
-│   ├── agent/           # LangGraph agent core
-│   │   ├── __init__.py
-│   │   └── graph.py     # StateGraph definition
-│   ├── tools/           # MCP tool implementations
-│   │   ├── __init__.py
-│   │   ├── web_search.py
-│   │   ├── code_interpreter.py
-│   │   ├── file_reader.py
-│   │   └── multimodal.py
-│   ├── config/          # Configuration management
-│   │   ├── __init__.py
-│   │   └── settings.py
-│   └── __init__.py
-├── tests/               # Test files
-│   └── test_agent_basic.py
-├── app.py               # Gradio interface (existing)
-├── requirements.txt     # Dependencies
-└── .env.example         # Environment template
-```
-
-**3.2 Create __init__.py files**
-
-- Enable proper Python module imports
-
-### Step 4: LangGraph Agent Skeleton
-
-**4.1 Create src/config/settings.py**
-
-- Load environment variables
-- Define configuration constants (API URLs, timeouts, retry settings)
-- LLM model selection logic (Gemini Flash as default, Claude as fallback)
-
-**4.2 Create src/agent/graph.py**
-
-- Define AgentState TypedDict (question, plan, tool_calls, answer, errors)
-- Create empty StateGraph with placeholder nodes:
-  - `plan_node`: Placeholder for planning logic
-  - `execute_node`: Placeholder for tool execution
-  - `answer_node`: Placeholder for answer synthesis
-- Define graph edges (plan → execute → answer)
-- Compile graph
-
-**4.3 Create basic agent wrapper**
-
-- GAIAAgent class that wraps compiled graph
-- `__call__(self, question: str) -> str` method
-- Invoke graph with question input
-- Return final answer from state
-
-### Step 5: Integration with Existing app.py
-
-**5.1 Modify app.py**
-
-- Replace BasicAgent import with GAIAAgent
-- Update agent instantiation in `run_and_submit_all`
-- Keep existing Gradio UI and API integration unchanged
-- Add error handling for agent initialization
-
-**5.2 Add logging configuration**
-
-- Configure Python logging module
-- Log agent initialization, graph compilation, question processing
-- Maintain existing print statements for Gradio UI
-
-### Step 6: Validation & Testing
-
-**6.1 Create tests/test_agent_basic.py**
-
-- Test LangGraph agent initialization
-- Test agent with dummy question (should return placeholder answer)
-- Verify StateGraph compilation succeeds
-
-**6.2 Local testing**
-
-- Run `uv run python tests/test_agent_basic.py`
-- Run Gradio app locally: `uv run python app.py`
-- Test question submission (expect placeholder answer, not error)
-
-**6.3 HF Space deployment validation**
-
-- Push changes to HF Space repository
-- Verify Space builds successfully
-- Test Gradio interface with OAuth login
-- Submit test question to API (expect placeholder answer)
-
-## Files to Modify
-
-**New files to create:**
-
-- `requirements.txt` - Project dependencies
-- `.env.example` - Environment variable template
-- `src/__init__.py` - Package initialization
-- `src/config/__init__.py` - Config package
-- `src/config/settings.py` - Configuration management
-- `src/agent/__init__.py` - Agent package
-- `src/agent/graph.py` - LangGraph StateGraph definition
-- `src/tools/__init__.py` - Tools package (placeholder)
-- `tests/test_agent_basic.py` - Basic validation tests
-
-**Existing files to modify:**
-
-- `app.py` - Replace BasicAgent with GAIAAgent
-
-**Files NOT to modify yet:**
-
-- `README.md` - No changes until Stage 1 complete
-- Tool implementations - Defer to Stage 2
-- Planning/execution logic - Defer to Stage 3
-
-## Success Criteria
-
-### Functional Requirements
-
-- [ ] LangGraph agent compiles without errors
-- [ ] Agent accepts question input and returns answer (placeholder OK)
-- [ ] Gradio UI works with new agent integration
-- [ ] HF Space deploys successfully with new dependencies
-- [ ] Environment variables load correctly (API keys accessible)
-
-### Technical Requirements
-
-- [ ] All dependencies install without conflicts
-- [ ] Python module imports work correctly
-- [ ] StateGraph structure defined with 3 nodes (plan, execute, answer)
-- [ ] No runtime errors during agent initialization
-- [ ] Test suite passes locally
-
-### Validation Checkpoints
-
-- [ ] **Checkpoint 1:** requirements.txt created and dependencies install locally
-- [ ] **Checkpoint 2:** Project structure created, all __init__.py files present
-- [ ] **Checkpoint 3:** LangGraph StateGraph compiles successfully
-- [ ] **Checkpoint 4:** GAIAAgent returns placeholder answer for test question
-- [ ] **Checkpoint 5:** Gradio UI works locally with new agent
-- [ ] **Checkpoint 6:** HF Space deploys and runs without errors
-
-### Non-Goals for Stage 1
-
-- ❌ Implementing actual planning logic (Stage 3)
-- ❌ Implementing tool integrations (Stage 2)
-- ❌ Implementing error handling/retry logic (Stage 4)
-- ❌ Performance optimization (Stage 5)
-- ❌ Achieving any GAIA accuracy targets (Stage 5)
-
-## Dependencies & Risks
-
-**Dependencies:**
-
-- HuggingFace Space deployment access
-- API keys for external services (Anthropic, Google, Exa)
-- LangGraph package availability
-
-**Risks:**
-
-- **Risk:** LangGraph version conflicts with existing dependencies
-  - **Mitigation:** Test locally first, pin versions in requirements.txt
-- **Risk:** HF Space build fails with new dependencies
-  - **Mitigation:** Incremental deployment, test each dependency addition
-- **Risk:** API key configuration issues in HF Secrets
-  - **Mitigation:** Create .env.example with clear documentation
-
-**Estimated Time:** 1-2 days
-
-## Next Steps After Stage 1
-
-Once Stage 1 Success Criteria met:
-
-1. Create Stage 2 plan (Tool Development)
-2. Implement 4 core tools as MCP servers
-3. Test each tool independently
-4. Proceed to Stage 3 (Agent Core)
+Stage 1 completed. Planning for next stage will be documented here.