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idea-reality-mcp - prior-art MCP for coding agents

MCP server that scans GitHub, Hacker News, npm, PyPI, and Product Hunt before an agent starts building, surfacing whether the idea already exists and at what scale.

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mcptube - Karpathy-style LLM wiki for YouTube

MCP server that turns YouTube videos into a persistent, merging wiki rather than ephemeral vector chunks. Scene-change frame extraction + vision analysis captures slides, code, and diagrams that transcripts miss. 25+ MCP tools, FTS5+LLM hybrid retrieval, version history with source attribution per claim.

Why I saved this - The wiki-merge design is the differentiator vs RAG-over-YouTube clones - one MCP article with citations, not ten near-duplicate chunks. Scene-change extraction is what makes visual-heavy talks usable.