---
id: "0004"
date: 2026-06-02
status: Accepted
supersedes:
superseded-by:
affected-paths: [lib/api.rb]
affected-components: [api, sync]
---

# 0004 — Retry outbound sync with exponential backoff

## Context

The sync endpoint is flaky; naive immediate retries amplified outages.

## Decision

lib/api.rb retries failed pushes 3 times with exponential backoff and jitter; no retry queue.

## Consequences

Transient failures self-heal; a hard outage still surfaces as an error after ~30s.

## Alternatives rejected

Persistent retry queue rejected: adds state and a worker for a problem backoff already solves.