Claude Managed Agents is a beta service launched by Anthropic on 2026/04/08 that provides an agent harness plus cloud container sandbox, billed per token plus $0.08/session-hour. It suits long-running async tasks and is worth exploring if you don't want to build your own agent loop and sandbox.
D1 is Cloudflare's serverless SQLite database that binds directly to Workers, supports full SQL (JOINs, transactions), and handles automatic backups. It's well-suited for small-to-medium relational data needs — NobodyClimb uses it as its primary database.
Cloudflare Workers uses V8 Isolates instead of containers — no cold starts, global edge deployment, and direct access to D1, R2, KV, and AI via Bindings. Great for APIs, SSR, and lightweight backends; not suited for long-running tasks.