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Show HN: A site only LLM can access

Reverse CAPTCHA system using hidden DOM elements and reasoning challenges to admit AI agents while blocking humans.

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Show HN: AI Marketing Skills for Claude Code

Open-source collection of 16 reusable marketing skills for Claude Code covering research, content, SEO, ads. Optional MCP server integration for live data and browser control.

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Show HN: Private AI assistant for $1.99 -Free AI

Private AI assistant for $1.99/month on Telegram using Gemini 3 Flash or custom models. Single developer project with WebSocket gateway, conversation memory, multi-channel support.

HN pretext 2/25/2026

LadybugDB: DuckDB for Graphs

LadybugDB: embedded graph database optimized for analytical workloads with full-text search and vector indices.