D013: Live demo: "Ask this site" AI toy

Context: Saif wants a small interactive toy on the site (confirmed). Needs to prove product craft first-hand.

Options considered:

• Distill a shipped product feature, high fidelity but lots of build per project.
• Embed Insomniac (existing web toy), cheapest, but generic.
• "Ask this site", a tiny AI input answering questions about Saif, grounded in his project data.

Decision: "Ask this site" (AI toy). Alternative kept: embed Insomniac if a non-AI toy is preferred.

Why: No external product to clone; showcases Saif's AI strength directly; and it ties the whole site together, it answers from the vault and the same llms.txt content that AI crawlers read (D009 - SEO and AI Crawlers). Memorable, on-brand, single-purpose.

Tech: Vercel AI SDK + AI Gateway, serverless, streamed, rate-limited, cheap model. Full loading/empty/error/rate-limited states (craft on display). Lazy island.

Trade-offs: needs guardrails (rate limit, scoped to grounded answers, refuse off-topic) and a small cost budget. Resolves Open Questions #3 (live demo).