Guides

Guides answer “I want to do X — show me.” They assume you have read the relevant Concepts page and now want a concrete recipe.

A guide is short and runnable. It does not re-explain the underlying model — it links to Concepts when context is needed and to Reference when an exhaustive parameter list is needed.

Available guides

Guide	When you reach for it
Add an entity to a feature	A second entity in a feature you already have.
Write a custom write handler	Default CRUD doesn’t fit; you need business rules on save.
Restrict a field to specific roles	A column visible to admins only, writable by everyone.
Expose a public, anonymous-readable endpoint	Public status pages, marketing landings, hosted reports.
React to another feature’s events	Feature A reacts when feature B writes — without imports.
Seed default data for new tenants	New tenant signs up; populate their workspace.
Apply one-shot data migrations via the event store	A role changed name, an admin needs an extra membership — run it once, tracked, ES-conform.
Build a read model across multiple aggregates	Aggregate events from several entities into one view.

See also

• Recipes — runnable end-to-end examples (fuller code than a guide, less explanation).
• Concepts — the mental model that the guides assume you’ve read.