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Frequently asked questions
Find concise answers about delivery semantics, versioning, data retention, and local development.
Does Arcwell guarantee exactly-once delivery?
No. Arcwell provides durable at-least-once delivery. Exactly-once effects require an idempotent handler and a transactional boundary in the system that owns the side effect.
Can I change an event schema?
You can add optional fields to a compatible version. Removing fields, changing types, or changing meaning requires a new major signal version.
How long are events retained?
Retention is configured per stream from 24 hours to 13 months. Local workspaces retain data until arcctl dev stops unless a local volume is configured.
Where can I get help?
Use the support guide for diagnostic steps. This fictional demonstration provides mailto links but does not simulate a support backend.