Show HN: DocFlare AI – Open-source docs chatbot on Cloudflare's free tier

DocFlare AI's open-source docs chatbot “runs free on Cloudflare’s free tier” by leveraging Workers AI, Vectorize, and D1, allowing anyone to embed a searchable AI assistant for documentation with a single <script> tag. For website owners, this means a surge of AI‑driven traffic that bypasses traditional server logs because the chatbot executes entirely on Cloudflare’s edge. Every visitor query is processed by Workers AI, and the results are streamed back with source citations, creating a new class of bot that can generate content on‑demand without hitting your origin. If you host public docs, you’ll see increased request volume from both genuine users and automated crawlers probing the chatbot endpoint, potentially affecting rate limits and D1 storage quotas. Moreover, because the solution is free on the free tier, smaller sites may adopt it without budgeting for AI hosting, raising the overall prevalence of AI bots across the web. **Actionable tips:** 1. **Add a llms.txt entry** for the DocFlare AI endpoint (e.g., `User-agent: DocFlareAI/1.0` `Disallow: /private/`) to control which parts of your site the chatbot can index. 2. **Monitor Cloudflare analytics** for Workers AI request patterns and set custom firewall rules to throttle excessive query rates or block abusive IPs. 3. **Implement rate limiting on the D1 database** via Cloudflare Workers KV counters to prevent storage exhaustion from high‑volume chatbot interactions.