diff --git a/CHANGELOG.md b/CHANGELOG.md
index 579033b..cf902f1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,36 @@ ratio/diff ver `git show <sha>`.
 
 ## 2026-05-08
 
+### feat(sidecar): WIT al sidecar — módulos conscientes vivos
+- `brahman-card::WitInterface` deriva `Serialize`, `Deserialize`,
+  `PartialEq`, `Eq` para cruzar el wire postcard.
+- `brahman-handshake::Hello` lleva `wit: Option<WitInterface>`. Server
+  usa `ResolvedCard::from_conscious` cuando viene presente, `from_agnostic`
+  cuando no.
+- `brahman-handshake::Client::connect` queda como wrapper agnóstico de
+  `connect_with(path, card, wit: Option<WitInterface>)`.
+- `brahman-broker::Broker::register` ahora toma `Option<WitInterface>`
+  como tercer arg. `BrokeredCard` guarda el wit. 25 sitios de tests
+  actualizados con `, None`.
+- `brahman-sidecar::SidecarConfig` con campo `wit`. Helpers nuevos:
+  `SidecarConfig::new(card).with_wit(wit)` y `spawn_conscious(card, wit)`.
+  El log `attached` reporta `conscious=true|false`.
+- `brahman-status` muestra marker 🧠 + sección `wit:` (package/world,
+  imports, exports) por sesión consciente.
+- Example nuevo `crates/shared/brahman-sidecar/examples/presence-conscious.rs`:
+  toma label + path .wit (default `shared_wit/protocol.wit`), parsea
+  con brahman-card-wit, spawna sidecar consciente.
+- Validado end-to-end:
+  ```
+  $ presence-conscious demo.conscious shared_wit/protocol.wit &
+  $ brahman-status
+  Sessions (1):
+    01K... demo.conscious 🧠  lifecycle=Daemon
+        wit: brahman:protocol@0.1.0 / module
+             imports: types, handshake, lifecycle
+             exports: run
+  ```
+
 ### feat(core): brahman-card-wit — extractor opcional de contratos WIT
 - Crate nuevo `crates/core/brahman-card-wit` con `wit-parser = "0.230"`.
 - API: `parse_wit(source)` y `parse_wit_file(path)` devuelven
diff --git a/Cargo.lock b/Cargo.lock
index 33cd755..b36595e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1207,6 +1207,7 @@ name = "brahman-sidecar"
 version = "0.1.0"
 dependencies = [
  "brahman-card",
+ "brahman-card-wit",
  "brahman-handshake",
  "tokio",
  "tracing",
diff --git a/crates/core/brahman-admin/examples/brahman-status.rs b/crates/core/brahman-admin/examples/brahman-status.rs
index 21c7f57..3c6f004 100644
--- a/crates/core/brahman-admin/examples/brahman-status.rs
+++ b/crates/core/brahman-admin/examples/brahman-status.rs
@@ -20,10 +20,20 @@ async fn main() -> anyhow::Result<()> {
         println!("  (ninguna)");
     } else {
         for s in &snap.sessions {
+            let conscious_marker = if s.wit.is_some() { " 🧠" } else { "" };
             println!(
-                "  {}  {}  lifecycle={:?}  priority={:?}",
-                s.session, s.label, s.lifecycle, s.priority
+                "  {}  {}{}  lifecycle={:?}  priority={:?}",
+                s.session, s.label, conscious_marker, s.lifecycle, s.priority
             );
+            if let Some(wit) = &s.wit {
+                println!("      wit: {} / {}", wit.package, wit.world);
+                if !wit.imports.is_empty() {
+                    println!("           imports: {}", wit.imports.join(", "));
+                }
+                if !wit.exports.is_empty() {
+                    println!("           exports: {}", wit.exports.join(", "));
+                }
+            }
             for f in &s.inputs {
                 println!("      in  {}: {:?}", f.name, f.ty);
             }
diff --git a/crates/core/brahman-broker/src/lib.rs b/crates/core/brahman-broker/src/lib.rs
index 852c7ec..8aa6dfe 100644
--- a/crates/core/brahman-broker/src/lib.rs
+++ b/crates/core/brahman-broker/src/lib.rs
@@ -30,7 +30,7 @@
 
 use std::collections::BTreeMap;
 
-use brahman_card::{Card, Flow, Lifecycle, Priority, TypeRef};
+use brahman_card::{Card, Flow, Lifecycle, Priority, TypeRef, WitInterface};
 use serde::{Deserialize, Serialize};
 use ulid::Ulid;
 
@@ -68,10 +68,12 @@ pub struct BrokeredCard {
     pub priority: Priority,
     pub inputs: Vec<Flow>,
     pub outputs: Vec<Flow>,
+    /// Interfaz WIT extraída si el módulo es "consciente"; `None` si agnóstico.
+    pub wit: Option<WitInterface>,
 }
 
 impl BrokeredCard {
-    fn from_card(session: SessionId, card: &Card) -> Self {
+    fn from_card(session: SessionId, card: &Card, wit: Option<WitInterface>) -> Self {
         Self {
             session,
             label: card.label.clone(),
@@ -79,6 +81,7 @@ impl BrokeredCard {
             priority: card.priority,
             inputs: card.flow.input.clone(),
             outputs: card.flow.output.clone(),
+            wit,
         }
     }
 }
@@ -125,9 +128,17 @@ impl Broker {
         }
     }
 
-    /// Registra una Card. Devuelve `Some(prev)` si reemplazó una existente.
-    pub fn register(&mut self, session: SessionId, card: &Card) -> Option<BrokeredCard> {
-        self.cards.insert(session, BrokeredCard::from_card(session, card))
+    /// Registra una Card con su WIT opcional. Devuelve `Some(prev)` si
+    /// reemplazó una existente. Pasar `None` en `wit` indica módulo
+    /// agnóstico (sin contrato WIT extraído).
+    pub fn register(
+        &mut self,
+        session: SessionId,
+        card: &Card,
+        wit: Option<WitInterface>,
+    ) -> Option<BrokeredCard> {
+        self.cards
+            .insert(session, BrokeredCard::from_card(session, card, wit))
     }
 
     /// Quita una Card por sesión.
@@ -351,8 +362,8 @@ mod tests {
         );
         let s_prod = Ulid::new();
         let s_cons = Ulid::new();
-        b.register(s_prod, &producer);
-        b.register(s_cons, &consumer);
+        b.register(s_prod, &producer, None);
+        b.register(s_cons, &consumer, None);
 
         let m = b.find_producer_for(s_cons, "query").expect("match");
         assert_eq!(m.producer_label, "dht");
@@ -391,8 +402,8 @@ mod tests {
         );
         let s_prod = Ulid::new();
         let s_cons = Ulid::new();
-        b.register(s_prod, &producer);
-        b.register(s_cons, &consumer);
+        b.register(s_prod, &producer, None);
+        b.register(s_cons, &consumer, None);
 
         let m = b.find_producer_for(s_cons, "in").expect("match");
         assert_eq!(m.via, MatchStrategy::Structural);
@@ -427,9 +438,9 @@ mod tests {
                 output: vec![],
             },
         );
-        b.register(Ulid::new(), &producer);
+        b.register(Ulid::new(), &producer, None);
         let s_cons = Ulid::new();
-        b.register(s_cons, &consumer);
+        b.register(s_cons, &consumer, None);
 
         assert!(b.find_producer_for(s_cons, "in").is_none());
     }
@@ -477,10 +488,10 @@ mod tests {
                 output: vec![],
             },
         );
-        b.register(Ulid::new(), &p_struct);
-        b.register(Ulid::new(), &p_exact);
+        b.register(Ulid::new(), &p_struct, None);
+        b.register(Ulid::new(), &p_exact, None);
         let s_cons = Ulid::new();
-        b.register(s_cons, &consumer);
+        b.register(s_cons, &consumer, None);
 
         let m = b.find_producer_for(s_cons, "in").expect("match");
         // El exact gana incluso si tiene priority igual: por estrategia.
@@ -516,10 +527,10 @@ mod tests {
                 output: vec![],
             },
         );
-        b.register(Ulid::new(), &p1);
-        b.register(Ulid::new(), &p2);
+        b.register(Ulid::new(), &p1, None);
+        b.register(Ulid::new(), &p2, None);
         let s_cons = Ulid::new();
-        b.register(s_cons, &consumer);
+        b.register(s_cons, &consumer, None);
 
         let m = b.find_producer_for(s_cons, "in").expect("match");
         assert_eq!(m.producer_label, "dht-test");
@@ -545,9 +556,9 @@ mod tests {
                 output: vec![],
             },
         );
-        b.register(Ulid::new(), &p);
+        b.register(Ulid::new(), &p, None);
         let s_cons = Ulid::new();
-        b.register(s_cons, &consumer);
+        b.register(s_cons, &consumer, None);
 
         let m = b.find_producer_for(s_cons, "in").expect("match");
         assert_eq!(m.producer_label, "real-dht");
@@ -581,10 +592,10 @@ mod tests {
                 output: vec![],
             },
         );
-        b.register(Ulid::new(), &p_low);
-        b.register(Ulid::new(), &p_high);
+        b.register(Ulid::new(), &p_low, None);
+        b.register(Ulid::new(), &p_high, None);
         let s_cons = Ulid::new();
-        b.register(s_cons, &consumer);
+        b.register(s_cons, &consumer, None);
 
         let m = b.find_producer_for(s_cons, "in").expect("match");
         assert_eq!(m.producer_label, "a-dht"); // priority High > Low
@@ -617,10 +628,10 @@ mod tests {
                 output: vec![],
             },
         );
-        b.register(Ulid::new(), &p1);
-        b.register(Ulid::new(), &p2);
+        b.register(Ulid::new(), &p1, None);
+        b.register(Ulid::new(), &p2, None);
         let s_cons = Ulid::new();
-        b.register(s_cons, &consumer);
+        b.register(s_cons, &consumer, None);
 
         let m = b.find_producer_for(s_cons, "in").expect("match");
         assert_eq!(m.producer_label, "a-dht"); // alfabético gana
@@ -646,9 +657,9 @@ mod tests {
             },
         );
         let s_p = Ulid::new();
-        b.register(s_p, &p);
+        b.register(s_p, &p, None);
         let s_c = Ulid::new();
-        b.register(s_c, &consumer);
+        b.register(s_c, &consumer, None);
 
         assert!(b.find_producer_for(s_c, "in").is_some());
         b.unregister(s_p);
@@ -667,7 +678,7 @@ mod tests {
             },
         );
         let s = Ulid::new();
-        b.register(s, &same);
+        b.register(s, &same, None);
 
         // Solo una Card registrada — no hay otra que produzca string.
         assert!(b.find_producer_for(s, "in").is_none());
@@ -692,8 +703,8 @@ mod tests {
                 output: vec![flow("user-input", prim("string"), None)],
             },
         );
-        b.register(Ulid::new(), &dht);
-        b.register(Ulid::new(), &ui);
+        b.register(Ulid::new(), &dht, None);
+        b.register(Ulid::new(), &ui, None);
 
         let matches = b.all_matches();
         assert_eq!(matches.len(), 2);
diff --git a/crates/core/brahman-card/src/lib.rs b/crates/core/brahman-card/src/lib.rs
index 3c2c597..7052f10 100644
--- a/crates/core/brahman-card/src/lib.rs
+++ b/crates/core/brahman-card/src/lib.rs
@@ -610,7 +610,7 @@ impl TrustLevel {
 
 /// Resumen de la interfaz WIT extraída del componente WASM/WIT.
 /// Vacío para módulos agnósticos (sin contrato WIT).
-#[derive(Debug, Clone, Default)]
+#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
 pub struct WitInterface {
     pub package: String,
     pub world: String,
diff --git a/crates/core/brahman-handshake/src/client.rs b/crates/core/brahman-handshake/src/client.rs
index 6050dd6..cf79435 100644
--- a/crates/core/brahman-handshake/src/client.rs
+++ b/crates/core/brahman-handshake/src/client.rs
@@ -4,7 +4,7 @@ use std::collections::VecDeque;
 use std::path::Path;
 use std::time::Duration;
 
-use brahman_card::{Card, CARD_SCHEMA_VERSION};
+use brahman_card::{Card, WitInterface, CARD_SCHEMA_VERSION};
 use thiserror::Error;
 use tokio::net::UnixStream;
 
@@ -43,9 +43,20 @@ pub struct Client {
 }
 
 impl Client {
-    /// Conecta al socket, envía Hello con la Card dada y procesa la respuesta.
+    /// Conecta como módulo agnóstico (sin WIT). Equivalente a
+    /// `connect_with(path, card, None)`.
     pub async fn connect(path: impl AsRef<Path>, card: Card) -> Result<Self, ClientError> {
-        // Pre-validamos para fallar local antes de hablar con el servidor.
+        Self::connect_with(path, card, None).await
+    }
+
+    /// Conecta al socket enviando Hello con la Card dada y opcionalmente
+    /// una `WitInterface` ya extraída. Si `wit` es `Some`, el server
+    /// registra el módulo como "consciente".
+    pub async fn connect_with(
+        path: impl AsRef<Path>,
+        card: Card,
+        wit: Option<WitInterface>,
+    ) -> Result<Self, ClientError> {
         card.validate()
             .map_err(|e| ClientError::InvalidCard(e.to_string()))?;
 
@@ -54,6 +65,7 @@ impl Client {
             schema_version: CARD_SCHEMA_VERSION,
             protocol_version: brahman_card::PROTOCOL_VERSION.to_string(),
             card,
+            wit,
         };
         write_frame(&mut stream, &Frame::Hello(hello)).await?;
 
diff --git a/crates/core/brahman-handshake/src/messages.rs b/crates/core/brahman-handshake/src/messages.rs
index 2ace614..80423a1 100644
--- a/crates/core/brahman-handshake/src/messages.rs
+++ b/crates/core/brahman-handshake/src/messages.rs
@@ -3,7 +3,7 @@
 //! Todos los mensajes que cruzan el wire son variantes de [`Frame`].
 
 use brahman_broker::MatchStrategy;
-use brahman_card::TypeRef;
+use brahman_card::{TypeRef, WitInterface};
 use serde::{Deserialize, Serialize};
 use ulid::Ulid;
 
@@ -11,7 +11,9 @@ use ulid::Ulid;
 pub type SessionId = Ulid;
 
 /// Saludo inicial del módulo. Lleva la Card completa para que el servidor
-/// la valide e indexe.
+/// la valide e indexe. Opcionalmente, una `WitInterface` ya extraída — si
+/// está presente, el módulo es "consciente" y el server lo registra como
+/// `ResolvedCard::from_conscious`; si no, como `from_agnostic`.
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct Hello {
     /// Versión del schema de Card que el cliente sigue.
@@ -20,6 +22,10 @@ pub struct Hello {
     pub protocol_version: String,
     /// Tarjeta de Presentación.
     pub card: brahman_card::Card,
+    /// Interfaz WIT extraída por el cliente (típicamente con
+    /// `brahman-card-wit`). `None` si el módulo es agnóstico.
+    #[serde(default)]
+    pub wit: Option<WitInterface>,
 }
 
 /// Respuesta del servidor a un `Hello` aceptado.
diff --git a/crates/core/brahman-handshake/src/server.rs b/crates/core/brahman-handshake/src/server.rs
index 1a84916..454dfc4 100644
--- a/crates/core/brahman-handshake/src/server.rs
+++ b/crates/core/brahman-handshake/src/server.rs
@@ -6,7 +6,7 @@ use std::sync::Arc;
 use std::time::{SystemTime, UNIX_EPOCH};
 
 use brahman_broker::{Broker, Endpoint};
-use brahman_card::{Card, ResolvedCard, CARD_SCHEMA_VERSION};
+use brahman_card::{Card, ResolvedCard, WitInterface, CARD_SCHEMA_VERSION};
 use tokio::net::{UnixListener, UnixStream};
 use tokio::sync::{mpsc, Mutex};
 use tracing::{debug, warn};
@@ -367,7 +367,7 @@ impl Session {
         }
 
         let session_id = Ulid::new();
-        self.register_session(session_id, hello.card).await;
+        self.register_session(session_id, hello.card, hello.wit).await;
 
         let ack = HelloAck {
             server_version: crate::HANDSHAKE_VERSION.to_string(),
@@ -381,11 +381,23 @@ impl Session {
     }
 
     /// Indexa la sesión: ResolvedCard en sessions + Card en broker (si hay).
-    async fn register_session(&self, session_id: SessionId, card: Card) {
+    /// Si `wit` está presente, el módulo se registra como "consciente".
+    async fn register_session(
+        &self,
+        session_id: SessionId,
+        card: Card,
+        wit: Option<WitInterface>,
+    ) {
         if let Some(broker) = &self.config.broker {
-            broker.lock().await.register(session_id, &card);
+            broker
+                .lock()
+                .await
+                .register(session_id, &card, wit.clone());
         }
-        let resolved = ResolvedCard::from_agnostic(card);
+        let resolved = match wit {
+            Some(w) => ResolvedCard::from_conscious(card, w),
+            None => ResolvedCard::from_agnostic(card),
+        };
         self.sessions.lock().await.insert(session_id, resolved);
     }
 
diff --git a/crates/core/brahman-handshake/tests/handshake.rs b/crates/core/brahman-handshake/tests/handshake.rs
index 88adc91..076b4ad 100644
--- a/crates/core/brahman-handshake/tests/handshake.rs
+++ b/crates/core/brahman-handshake/tests/handshake.rs
@@ -124,6 +124,7 @@ async fn server_rejects_protocol_mismatch() {
         schema_version: CARD_SCHEMA_VERSION,
         protocol_version: "999.0.0".into(),
         card: sample_card("future-module"),
+        wit: None,
     };
     write_frame(&mut stream, &Frame::Hello(hello)).await.unwrap();
 
diff --git a/crates/shared/brahman-sidecar/Cargo.toml b/crates/shared/brahman-sidecar/Cargo.toml
index da80c1b..e4af588 100644
--- a/crates/shared/brahman-sidecar/Cargo.toml
+++ b/crates/shared/brahman-sidecar/Cargo.toml
@@ -16,7 +16,12 @@ tracing = { workspace = true }
 
 [dev-dependencies]
 tracing-subscriber = { workspace = true }
+brahman-card-wit = { path = "../../core/brahman-card-wit" }
 
 [[example]]
 name = "presence"
 path = "examples/presence.rs"
+
+[[example]]
+name = "presence-conscious"
+path = "examples/presence-conscious.rs"
diff --git a/crates/shared/brahman-sidecar/examples/presence-conscious.rs b/crates/shared/brahman-sidecar/examples/presence-conscious.rs
new file mode 100644
index 0000000..16baa50
--- /dev/null
+++ b/crates/shared/brahman-sidecar/examples/presence-conscious.rs
@@ -0,0 +1,99 @@
+//! `presence-conscious` — módulo brahman que se presenta con su WIT.
+//!
+//! Variante de [`presence`] que toma un path a un archivo `.wit` (default
+//! `shared_wit/protocol.wit` resuelto desde el cwd) y lo parsea con
+//! `brahman-card-wit` antes de spawnear el sidecar. Demuestra el flujo
+//! "módulo consciente": Hello incluye `WitInterface`, el server lo
+//! registra como `ResolvedCard::from_conscious`, y aparece con marker
+//! 🧠 en `brahman-status`.
+//!
+//! Uso:
+//! ```sh
+//! cargo run -p brahman-sidecar --example presence-conscious -- mi-modulo [path/al.wit]
+//! ```
+
+use std::collections::BTreeSet;
+use std::path::PathBuf;
+use std::time::Duration;
+
+use brahman_card::{
+    ulid::Ulid, Card, Flow, Flows, Lifecycle, Payload, Priority, Supervision, TypeRef,
+    CARD_SCHEMA_VERSION,
+};
+use brahman_sidecar::{spawn_with_handle, SidecarConfig};
+
+fn main() {
+    tracing_subscriber::fmt()
+        .with_env_filter(
+            tracing_subscriber::EnvFilter::try_from_default_env()
+                .unwrap_or_else(|_| "info".into()),
+        )
+        .init();
+
+    let mut args = std::env::args().skip(1);
+    let label = args.next().unwrap_or_else(|| "conscious-default".into());
+    let wit_path: PathBuf = args
+        .next()
+        .map(PathBuf::from)
+        .unwrap_or_else(|| PathBuf::from("shared_wit/protocol.wit"));
+
+    let wit = match brahman_card_wit::parse_wit_file(&wit_path) {
+        Ok(worlds) => match worlds.into_iter().next() {
+            Some(w) => {
+                eprintln!(
+                    "[{label}] cargado wit: {} / {}",
+                    w.package, w.world
+                );
+                Some(w)
+            }
+            None => {
+                eprintln!("[{label}] {} no declara worlds", wit_path.display());
+                None
+            }
+        },
+        Err(e) => {
+            eprintln!("[{label}] falló parse de {}: {e}", wit_path.display());
+            None
+        }
+    };
+
+    let card = Card {
+        schema_version: CARD_SCHEMA_VERSION,
+        id: Ulid::new(),
+        label: label.clone(),
+        payload: Payload::Virtual,
+        supervision: Supervision::OneShot,
+        lifecycle: Lifecycle::Daemon,
+        priority: Priority::Normal,
+        provides: BTreeSet::new(),
+        requires: BTreeSet::new(),
+        flow: Flows {
+            input: vec![Flow {
+                name: "in".into(),
+                ty: TypeRef::Primitive {
+                    name: "json".into(),
+                },
+                pin_to: None,
+            }],
+            output: vec![Flow {
+                name: "out".into(),
+                ty: TypeRef::Primitive {
+                    name: "json".into(),
+                },
+                pin_to: None,
+            }],
+        },
+        ..Default::default()
+    };
+
+    let config = SidecarConfig {
+        card,
+        wit,
+        ping_interval: Duration::from_secs(5),
+    };
+
+    let _handle = spawn_with_handle(config);
+
+    eprintln!("[{label}] sidecar lanzado, durmiendo (Ctrl-C para salir)");
+    std::thread::park();
+}
diff --git a/crates/shared/brahman-sidecar/examples/presence.rs b/crates/shared/brahman-sidecar/examples/presence.rs
index 5eb0452..239a64b 100644
--- a/crates/shared/brahman-sidecar/examples/presence.rs
+++ b/crates/shared/brahman-sidecar/examples/presence.rs
@@ -61,6 +61,7 @@ fn main() {
 
     let _handle = spawn_with_handle(SidecarConfig {
         card,
+        wit: None,
         ping_interval: Duration::from_secs(5),
     });
 
diff --git a/crates/shared/brahman-sidecar/src/lib.rs b/crates/shared/brahman-sidecar/src/lib.rs
index 0da806f..4a8469e 100644
--- a/crates/shared/brahman-sidecar/src/lib.rs
+++ b/crates/shared/brahman-sidecar/src/lib.rs
@@ -19,7 +19,7 @@
 use std::thread::JoinHandle;
 use std::time::Duration;
 
-use brahman_card::Card;
+use brahman_card::{Card, WitInterface};
 use brahman_handshake::{client::Client, transport};
 use tracing::{info, warn};
 
@@ -31,28 +31,47 @@ pub const DEFAULT_PING_INTERVAL: Duration = Duration::from_secs(30);
 pub struct SidecarConfig {
     /// Card que se presenta al Init.
     pub card: Card,
+    /// WIT interface opcional. Si es `Some`, el módulo se registra como
+    /// "consciente" (`ResolvedCard::from_conscious`).
+    pub wit: Option<WitInterface>,
     /// Período entre pings.
     pub ping_interval: Duration,
 }
 
 impl SidecarConfig {
-    /// Configuración con defaults razonables: ping cada 30s.
+    /// Configuración agnóstica con defaults razonables (sin WIT, ping 30s).
     pub fn new(card: Card) -> Self {
         Self {
             card,
+            wit: None,
             ping_interval: DEFAULT_PING_INTERVAL,
         }
     }
+
+    /// Configuración consciente con WIT extraída.
+    pub fn with_wit(mut self, wit: WitInterface) -> Self {
+        self.wit = Some(wit);
+        self
+    }
 }
 
-/// Spawn fire-and-forget. Devuelve inmediatamente; el handle se descarta.
-/// Si el thread no se puede crear (raro), loggea y sigue.
+/// Spawn fire-and-forget agnóstico. Para módulos conscientes usá
+/// [`spawn_conscious`] o [`spawn_with_handle`] con un `SidecarConfig`
+/// personalizado.
 pub fn spawn(card: Card) {
     if let Err(e) = spawn_with_handle(SidecarConfig::new(card)) {
         warn!(error = %e, "no se pudo spawnear el sidecar brahman");
     }
 }
 
+/// Spawn fire-and-forget con WIT. Idéntico a [`spawn`] pero el módulo se
+/// registra como consciente en el broker.
+pub fn spawn_conscious(card: Card, wit: WitInterface) {
+    if let Err(e) = spawn_with_handle(SidecarConfig::new(card).with_wit(wit)) {
+        warn!(error = %e, "no se pudo spawnear el sidecar brahman");
+    }
+}
+
 /// Spawn devolviendo el `JoinHandle` para tests o cleanup explícito.
 pub fn spawn_with_handle(config: SidecarConfig) -> std::io::Result<JoinHandle<()>> {
     std::thread::Builder::new()
@@ -77,13 +96,15 @@ fn run_thread(config: SidecarConfig) {
 
 async fn run_client(config: SidecarConfig) {
     let path = transport::default_socket_path();
-    let mut client = match Client::connect(&path, config.card).await {
+    let conscious = config.wit.is_some();
+    let mut client = match Client::connect_with(&path, config.card, config.wit).await {
         Ok(c) => {
             info!(
                 target: "brahman_sidecar",
                 session = %c.session(),
                 init_attached = c.server_info().init_attached,
                 server = %c.server_info().server_version,
+                conscious,
                 "attached"
             );
             c