🔴 code_generator.py falls back to identical vanilla template for every video

[groupthinking]

Problem

All 11 uvai-generated-project-* repos contain byte-for-byte identical output. The ProjectCodeGenerator._generate_vanilla_js_project() ignores the extracted tutorial_steps, technologies, and features from the video analysis and generates the same boilerplate every time.

Root Cause

In src/youtube_extension/backend/code_generator.py:

• _generate_vanilla_main_js() returns a hardcoded string with generic messages regardless of input
• _generate_vanilla_index_html() lists 'Responsive Design' and 'Modern Ui' for every project
• The title defaults to 'UVAI Web App' / 'UVAI Generated Project' because extracted_info title is not being passed through

Evidence

• 11 repos created March 1-2, 2026 — all identical (verified via MD5 hash comparison)
• _generate_repo_name() sanitizes the default title to uvai-generated-project every time
• The 172KB ai_code_generator.py exists but is not wired into the vanilla JS path

Fix Required

1. Wire ai_code_generator.py into ALL code generation paths
2. Pass tutorial_steps into actual generated code — each video should produce unique output
3. Use extracted technologies to select the right framework instead of always falling back to vanilla
4. Generate meaningful title from video analysis, not a generic fallback

Acceptance Criteria

• Process two different videos → get meaningfully different code
• No more uvai-generated-project-XXXX naming — use video-derived names

References

• Architecture Stage 3: Polymorphic Output Synthesis
• Files: src/youtube_extension/backend/code_generator.py, ai_code_generator.py

[github-actions]

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