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# Architecture Decision Records

One file per decision, `NNNN-kebab-title.md`, created via `/os-adr:create`.

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| ID | Title | Status | Date |
| --- | --- | --- | --- |
| 0001 | [Retry failed deliveries a fixed three times](0001-retry-failed-deliveries-a-fixed-three-times.md) | Superseded | 2026-02-10 |
| 0002 | [Route all outbound HTTP through the shared HttpClient](0002-route-all-outbound-http-through-the-shared-httpclient.md) | Accepted | 2026-02-18 |
| 0003 | [Retry failed deliveries with exponential backoff, capped at five attempts](0003-retry-failed-deliveries-with-exponential-backoff-capped-at-five-attempts.md) | Accepted | 2026-03-05 |
| 0004 | [Cap outbound HTTP timeouts at five seconds](0004-cap-outbound-http-timeouts-at-five-seconds.md) | Accepted | 2026-03-12 |
| 0005 | [Record event times as UTC ISO-8601 strings](0005-record-event-times-as-utc-iso-8601-strings.md) | Accepted | 2026-04-02 |
| 0006 | [Dead-letter deliveries that exhaust retries to a JSONL file](0006-dead-letter-deliveries-that-exhaust-retries-to-a-jsonl-file.md) | Accepted | 2026-04-20 |
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