Obsidian/GenAI-DeepDetect/session-log.md

Session Log

2026-04-28 02:11 +05:30 - ZeroGPU PRD Implementation, Context Handoff

Completed:

• Treated CLAUDE.md as the project source of truth.
• Updated HuggingFace Space metadata in README.md to include hardware: zero-gpu, sdk_version: '4.44.0', app_file: app.py, pinned: true, and license: mit.
• Reworked app.py to import spaces, load modules on CPU at startup, use real modules.m3_sstgnn.SSTGNNModule, and decorate analyze() with @spaces.GPU(duration=120).
• Added GPU transfer methods to M1, M2, and M3 wrappers.
• Added SSTGNN architecture in modules/sstgnn_model.py.
• Added patch graph construction in utils/graph.py.
• Added local lipfd/model.py and lipfd/__init__.py so M1 import path exists.
• Generated weights/fusion_mlp.pt and updated .gitignore to allow that exact required checkpoint.
• Added tests/test_zero_gpu_contract.py to lock the ZeroGPU contract.

Broke / Fixed:

• Initial contract test failed because README lacked ZeroGPU metadata, app.py imported m3_fallback, module wrappers lacked transfer methods, and modules/sstgnn_model.py was missing.
• Fixed those failures and verified the contract tests pass.
• Found missing lipfd/model.py and added it.
• Found .gitignore ignored all .pt files and added !weights/fusion_mlp.pt.

Verification:

• pytest tests/test_zero_gpu_contract.py -q passed.
• pytest tests/test_fusion.py -q passed.
• python -m py_compile passed for touched Python files.
• Full suite passed: 59 passed, 9 warnings.

MCP / Context Store:

• Tried to use MCP for Obsidian context.
• list_mcp_resources returned no resources.
• list_mcp_resource_templates returned no templates.
• Because Obsidian MCP is not exposed in this Codex session, wrote a local fallback vault mirror under Obsidian/GenAI-DeepDetect/.

Next Session Starts With:

• Connect Obsidian MCP and sync this local fallback folder into the real Obsidian vault.
• Verify HuggingFace weight repos are accessible.
• Replace minimal LipFD wrapper with full upstream model files if checkpoint loading reports missing or unexpected key issues.
• Run the Gradio Space on ZeroGPU with a real video sample and configured NVIDIA_API_KEY.

Changed Paths / Model IDs:

• README.md
• app.py
• .gitignore
• requirements.txt
• modules/__init__.py
• modules/m1_lipsync.py
• modules/m2_fingerprint.py
• modules/m3_sstgnn.py
• modules/m5_explain.py
• modules/sstgnn_model.py
• utils/graph.py
• lipfd/__init__.py
• lipfd/model.py
• weights/fusion_mlp.pt
• tests/test_zero_gpu_contract.py
• Obsidian/GenAI-DeepDetect/README.md
• Obsidian/GenAI-DeepDetect/module-status.md
• Obsidian/GenAI-DeepDetect/blockers.md
• Obsidian/GenAI-DeepDetect/session-log.md
• HF model IDs: AkshatAgarwal/LipFD-checkpoint, AkshatAgarwal/SSTGNN-deepfake, yermandy/deepfake-detection, openai/clip-vit-large-patch14.
• NVIDIA NIM model ID: meta/llama-3.1-8b-instruct.