diff --git a/products/01-llm-cost-router/src/auth/mod.rs b/products/01-llm-cost-router/src/auth/mod.rs
index f71a7dc..6e2d7dd 100644
--- a/products/01-llm-cost-router/src/auth/mod.rs
+++ b/products/01-llm-cost-router/src/auth/mod.rs
@@ -34,12 +34,12 @@ pub trait AuthProvider: Send + Sync {
 /// Local auth — bcrypt passwords + HS256 JWT (self-hosted mode)
 pub struct LocalAuthProvider {
     pool: sqlx::PgPool,
-    jwt_secret: String,
+    _jwt_secret: String,
     redis: deadpool_redis::Pool,
 }
 
 impl LocalAuthProvider {
-    pub fn new(pool: sqlx::PgPool, jwt_secret: String, redis: deadpool_redis::Pool) -> Self {
+    pub fn new(pool: sqlx::PgPool, _jwt_secret: String, redis: deadpool_redis::Pool) -> Self {
         Self { pool, jwt_secret, redis }
     }
 }
diff --git a/products/01-llm-cost-router/src/proxy/handler.rs b/products/01-llm-cost-router/src/proxy/handler.rs
index e9628e6..0dab53a 100644
--- a/products/01-llm-cost-router/src/proxy/handler.rs
+++ b/products/01-llm-cost-router/src/proxy/handler.rs
@@ -43,7 +43,7 @@ async fn proxy_chat_completions(
     body: String,
 ) -> Result<Response, ProxyError> {
     // 1. Authenticate
-    let auth_ctx = state.auth.authenticate(&headers).await?;
+    let _auth_ctx = state.auth.authenticate(let auth_ctx = state.auth.authenticate(&headers).await?;headers).await?;
 
     // 2. Parse request
     let mut request: serde_json::Value =
@@ -148,7 +148,7 @@ async fn proxy_embeddings(
     body: String,
 ) -> Result<Response, ProxyError> {
     // Embeddings don't need routing — pass through directly
-    let auth_ctx = state.auth.authenticate(&headers).await?;
+    let _auth_ctx = state.auth.authenticate(let auth_ctx = state.auth.authenticate(&headers).await?;headers).await?;
     let provider = "openai".to_string();
     let upstream_url = state.config.provider_url(&provider);
 
diff --git a/products/01-llm-cost-router/src/router/mod.rs b/products/01-llm-cost-router/src/router/mod.rs
index e578861..f375eed 100644
--- a/products/01-llm-cost-router/src/router/mod.rs
+++ b/products/01-llm-cost-router/src/router/mod.rs
@@ -19,6 +19,7 @@ pub enum Complexity {
 }
 
 /// The Router Brain — evaluates request complexity and applies routing rules
+#[derive(Default)]
 pub struct RouterBrain {
     // In V1, rules are loaded from config. Later: from DB per org.
 }