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docs/snippets/elixir/plugins/plugin_logging.md

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+<!-- snippet:skip reason="Elixir Rustler NIFs cannot host async Send + Sync + 'static Rust trait objects via callbacks; the BEAM actor-model boundary requires plugin work to live in the Rust core. The alef-generated Elixir trait_call macro additionally has a backslash/encoding bug (separate alef-codegen ticket). Custom plugins must be implemented in Rust." -->
+Plugin logging is not directly available in the Elixir binding. Logging must be implemented in the Rust plugin code itself using the `tracing` crate.
+
+To add logging to a Rust plugin:
+
+```rust
+use tracing::{debug, info, warn};
+
+#[async_trait]
+impl DocumentExtractor for MyExtractor {
+    async fn extract_bytes(
+        &self,
+        content: &[u8],
+        mime_type: &str,
+        _config: &ExtractionConfig,
+    ) -> Result<ExtractionResult> {
+        debug!("Starting extraction for {}", mime_type);
+
+        // Extraction logic...
+
+        info!("Extraction completed for {}", mime_type);
+        Ok(result)
+    }
+}
+```
+
+The logs will be captured by Kreuzberg's tracing infrastructure and can be monitored from Elixir through structured logging in the output.