at-most-once

Interactive browser simulator that visualizes delivery guarantees, idempotency, DLQ, Outbox and Inbox patterns across Azure Service Bus, Event Hubs, Event Grid, Kafka, RabbitMQ and more. Built for teaching Event-Driven Architecture.

SC4051 Distributed Systems Project. Bank System w/ different invocation semantics

Pre-alpha Idris 2 semantic kernel and reference scheduler for normalizing typed action sequences under an at-most-once policy, with tested but non-production service scaffolding.

At-most-once Discord cue delivery engine with claim-durable ledger, freshness windows, and DST-safe scheduling

Concurrent, generic and unbounded queue for Go

PHP-библиотека: обработчик вебхука выполняется ровно один раз, сколько бы раз провайдер его ни прислал. Захват через UNIQUE-индекс, повтор отвечает сохранённым ответом. Без зависимостей, MySQL и SQLite.

Idempotency keys for Solana. Retry without executing twice. At-most-once successful execution of a guarded logical intent within a configurable retention window.

Effect gate for AI agents. An agent asks before it charges a card, ships a deploy, or sends the email, and gets back a durable decision — so the same real-world action is attempted at most once. Ratchet never performs the effect itself and holds no vendor credentials.