Loom: durable AI commerce with Vercel Workflows, exactly-once side effects, and a bounded agent gate
Loom is an open-source backend that demonstrates the patterns required to let an LLM influence real money movement safely. Four Vercel Workflows run end-to-end with durable sleep, exactly-once side effects, saga compensation, Stripe webhook drift reconciliation, and a deterministic authorization gate that bounds every agent decision. Ships with an adversarial eval harness and a failure-injection harness. Built on Vercel Workflows (GA), the Vercel AI SDK, Anthropic, Stripe, and Upstash.
- ai
- durable-execution
- agents
- workflows
- stripe
- open-source
- applied-ai