diff --git a/Cargo.toml b/Cargo.toml
index 09de3cc..86e5629 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,6 @@ rust-version = "1.85"
 license = "MIT OR Apache-2.0"
 description = "Call + channels RPC: structured JSON operations, streaming subscriptions, service discovery, and N-channel multiplexing over one transport stream"
 repository = "https://git.alk.dev/alkdev/alkcall"
-readme = "README.md"
 keywords = ["rpc", "json-rpc", "multiplexing", "wire-format", "alpn"]
 categories = ["network-programming", "asynchronous", "encoding"]
 exclude = [".opencode/", "docs/reviews/", "docs/research/", "docs/sdd_process.md", "Cargo.lock"]
diff --git a/src/channels/operations.rs b/src/channels/operations.rs
index ad5e64c..cfdc493 100644
--- a/src/channels/operations.rs
+++ b/src/channels/operations.rs
@@ -405,14 +405,17 @@ impl ChannelCore {
     ) -> Result<(), String> {
         let op_type = spec.op_type;
         let channel_open = spec.channel_open.clone();
-        if channel_open.is_none() {
-            return Err(format!(
-                "register_openable: spec `{}` has no channel_open marker — \
-                 use `OperationSpec::with_channel_open` to set it (ADR-047 §2)",
-                spec.name
-            ));
-        }
-        let alpn = channel_open.expect("checked above").alpn.to_string();
+        let alpn = channel_open
+            .as_ref()
+            .ok_or_else(|| {
+                format!(
+                    "register_openable: spec `{}` has no channel_open marker — \
+                     use `OperationSpec::with_channel_open` to set it (ADR-047 §2)",
+                    spec.name
+                )
+            })?
+            .alpn
+            .to_string();
 
         let manager = self.manager.clone();
         let policy = Arc::clone(&self.policy);
diff --git a/src/core/types.rs b/src/core/types.rs
index 69b5460..2a3cff9 100644
--- a/src/core/types.rs
+++ b/src/core/types.rs
@@ -433,7 +433,7 @@ struct StreamBidiStreamSource {
 #[async_trait]
 impl BidiStreamSource for StreamBidiStreamSource {
     async fn accept_bi(&self) -> Result<BiStream, StreamError> {
-        let mut guard = self.stream.lock().expect("stream mutex poisoned");
+        let mut guard = self.stream.lock().unwrap_or_else(|e| e.into_inner());
         match guard.take() {
             Some(stream) => Ok(stream),
             None => Err(StreamError::ConnectionClosed),
@@ -453,7 +453,7 @@ impl BidiStreamSource for StreamBidiStreamSource {
     /// §"Negative"). The `_` prefix is intentional — the signature matches
     /// the public `Connection::close` API (ADR-070 §"REQ-CORE-02").
     fn close(&self, _code: u32, _reason: &str) {
-        let _ = self.stream.lock().expect("stream mutex poisoned").take();
+        let _ = self.stream.lock().unwrap_or_else(|e| e.into_inner()).take();
     }
 }
 
diff --git a/src/registry/context.rs b/src/registry/context.rs
index b0f6745..8d3cc57 100644
--- a/src/registry/context.rs
+++ b/src/registry/context.rs
@@ -144,7 +144,6 @@ impl Default for ScopedPeerEnv {
     }
 }
 
-#[allow(dead_code)]
 pub(crate) fn generate_request_id() -> String {
     uuid::Uuid::new_v4().to_string()
 }