singleflight

Coalesce multiple identical calls into one, preventing thundering-herd/stampede to database/other backends

Dependency-free async Python library for building consistent, traceable snapshots from multiple read-only sources with caching, batching, single-flight deduplication, retries, circuit breakers, and sync support.

Flexible sync and async singleflight for Python — collapse concurrent calls sharing a key into one execution. Typed, zero-dependency cache-stampede protection.

Collapse concurrent duplicate calls into a single execution — singleflight for asyncio and threads

Single-flight cache stampede protection for Python

Implementation of singleflight-cluster. With zk + consistenthash. Also has herd watch call prevention. Intended as an exercise, and example for future work

Automated media archiving hub. Crafted for NAS users with an ultra-stable organization experience.

Stop paying twice for the same agent work. Collapses duplicate tool calls across parallel agents into one execution with signed receipts. Zero dependencies.

Universal caching library for Python with sync/async support, tagging, singleflight pattern and distributed locks.