Vercel 发布 Workflow SDK 5，专为智能体循环优化
Vercel 把 agent 循环的每步开销降到了 25 倍低的水平，还默认加密、支持区域容灾。更实用的是底层持久化日志拆成了 durable-harness，别的 agent 框架也能借用这套可靠性机制。
Vercel 推出 Workflow SDK 5 和 Vercel Workflows，重点面向智能体（agent）执行场景。官方宣称相比上一代实现最高 25 倍的延迟与开销降低，'首步耗时'和'步骤间耗时'两项指标均有大幅改善。
技术上，SDK 5 默认对每个负载进行加密，支持区域级工作负载隔离与故障转移，并在大规模生产环境中验证了系统可靠性，团队还演练了多种灾难恢复场景。此外，底层的持久化日志（durability log）被抽离为可复用组件，发布了开源项目 durable-harness，供任意 agent 框架接入。
对开发者而言，这意味着构建长时间运行的智能体工作流时，无需自行处理状态持久化和断点恢复，可直接复用 Vercel 的基础设施层。
Workflow SDK 5 and Vercel Workflows are a monumental step forward for agents. ◾ The 'time to first step' and 'time between steps' have massively improved. ◾ We doubled down on encryption and security. ◾ The reliability of the overall system has been proven at massive scale. We've ironed out many subtle details and exercised many disaster-recovery scenarios. ◾ We made the underlying durability log reusable for any agent harness. 𝚍𝚞𝚛𝚊𝚋𝚕𝚎-𝚑𝚊𝚛𝚗𝚎𝚜𝚜 was born. Check it out: Vercel @vercel Workflow SDK 5 is built for fast agent loops. ✓ Up to 25x lower latency and overhead ✓ Every payload is encrypted by default ✓ Regional workload isolation & failover https://t.co/FQ8clSIh96 🔗 View Quoted Tweet📊 13 ⚡
This report is categorized under AITOP's "Products" desk, focusing on US frontier AI labs and Silicon Valley technology leaders. Within our cross-regional analytical framework, it directly maps to AI developer toolchains, coding agents, and engineering workflows and US-China foundation model benchmarks and commercialization comparison. Key entities and technical topics under continuous tracking include Vercel, Workflow SDK, durable-harness, agents.
Source attribution: curated from Guillermo Rauch (@rauchg).
