ludic/docs/language/annotations/annot-server.md
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docs(api): per-symbol pages, fuzzy search, deep token linking, hover cards
Rebuild the API Reference around one page per symbol and richer, verified content.

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Tooling
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Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-29 17:53:22 +03:00

31 lines
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Markdown

---
id: annot-server
name: @Server
category: annotations
kind: annotation
tokens: @Server
sig: @Server handler Name { … }
tip: Run a handler only on the authority; clients receive the result via @Sync.
order: 50
---
<code>@Server</code> marks a handler as server-authoritative: it runs only on the peer acting as the authority, and clients receive its effects through ordinary <code>@Sync</code> replication rather than by running the handler themselves. This is the declarative alternative to sprinkling <code>is_server()</code> branches through gameplay code — the role is a property of the handler, so every line's placement stays legible. Unmarked handlers are the shared, deterministic simulation that runs everywhere; use <code>@Server</code> for decisions that must have a single source of truth, like awarding score, resolving damage, or spawning authoritative entities. Offline the role register defaults to server, so the guard collapses to "run here" and a single-player build is unchanged.
```ludic
program AuthoritativeScore {
property Score { total: int = 0 }
model Scoreboard { Score }
handler Tick phase Update { # unmarked -> runs on every peer
for (Score) in query [Score] { Score.total = Score.total + 1 }
}
@Server handler AwardBonus phase Update { # authority only
for (Score) in query [Score] { Score.total = Score.total + 100 }
}
handler SpawnScoreboard phase Start {
spawn Scoreboard { Score { total: 0 } }
}
}
```