* [better-result v3.0.0](https://github.com/dmmulroy/better-result) – Lightweight Result type for TypeScript with generator-based composition.

* [err2 v1.3.0](https://github.com/lainio/err2) – Go package for fully automatic error checking and propagation with deferred handlers, optional stack tracing, and assertion helpers.

* [evlog @evlog/cli@0.6.0](https://github.com/HugoRCD/evlog) – Per-request wide structured logging that emits a single JSON event with full context and self-explaining errors.

* [go-xerrors v1.0.1](https://github.com/MDobak/go-xerrors) – Idiomatic Go error-handling library providing stack traces, error wrapping, multi-error aggregation, and panic-to-error recovery.

* [BreakerMachines breaker-machines-v0....](https://github.com/seuros/breaker_machines) – Battle-tested Ruby implementation of the Circuit Breaker pattern for reliable distributed systems protection.

* [Honeybadger for JavaScript @honeybadger-io/esbu...](https://github.com/honeybadger-io/honeybadger-js) – Monorepo containing Honeybadger packages for JavaScript error reporting and integration.