> For AI agents: the complete documentation index is available at /llms.txt, the full documentation bundle is available at /llms-full.txt.

# Lambda Concurrency Decisions(已移至 system-design)

本文是**设计决策记录**(为什么并发值这样定),不是事故时的操作手册,2026-07-14 起归位到 [`system-design/lambda-concurrency-decisions.md`](/system-design/lambda-concurrency-decisions.md)。

当前 live 的并发/timeout 值以 infra repo `lib/stacks/*.ts` 代码为准。