diff --git a/xtask/src/commands/release/publish_plan.rs b/xtask/src/commands/release/publish_plan.rs
index d7896117f..c5fa4b648 100644
--- a/xtask/src/commands/release/publish_plan.rs
+++ b/xtask/src/commands/release/publish_plan.rs
@@ -1,6 +1,6 @@
 use std::{path::Path, process::Command};
 
-use anyhow::{Context, Result, bail, ensure};
+use anyhow::{bail, ensure, Context, Result};
 use clap::Args;
 
 use crate::{
@@ -63,11 +63,12 @@ pub fn publish_plan(workspace: &Path, args: PublishPlanArgs) -> Result<()> {
 
     // Actually publish the packages.
     for (step, toml) in plan.packages.iter().zip(tomls.iter()) {
-        let mut publish_args = if step.package.has_chip_features() {
-            vec!["--no-verify"]
-        } else {
-            vec![]
-        };
+        let mut publish_args =
+            if step.package.has_chip_features() || step.package.has_inline_assembly(workspace) {
+                vec!["--no-verify"]
+            } else {
+                vec![]
+            };
 
         if !args.no_dry_run {
             publish_args.push("--dry-run");
diff --git a/xtask/src/lib.rs b/xtask/src/lib.rs
index fea6dae53..ac9ae3d6f 100644
--- a/xtask/src/lib.rs
+++ b/xtask/src/lib.rs
@@ -3,7 +3,7 @@ use std::{
     path::{Path, PathBuf},
 };
 
-use anyhow::{anyhow, Result};
+use anyhow::{Result, anyhow};
 use cargo::CargoAction;
 use clap::ValueEnum;
 use esp_metadata::{Chip, Config};
@@ -84,6 +84,28 @@ impl Package {
         )
     }
 
+    /// Does the package have inline assembly?
+    pub fn has_inline_assembly(&self, workspace: &Path) -> bool {
+        // feature(asm_experimental_arch) is enabled in all crates that use Xtensa
+        // assembly, which covers crates that use assembly AND are used for both
+        // architectures (e.g. esp-backtrace).
+        // But RISC-V doesn't need this feature, so we can either scrape the crate
+        // source, or check in a list of packages.
+        if matches!(self, Package::EspRiscvRt | Package::EspLpHal) {
+            return true;
+        }
+
+        let lib_rs_path = workspace.join(self.to_string()).join("src").join("lib.rs");
+        let Ok(source) = std::fs::read_to_string(&lib_rs_path) else {
+            return false;
+        };
+
+        source
+            .lines()
+            .filter(|line| line.starts_with("#!["))
+            .any(|line| line.contains("asm_experimental_arch"))
+    }
+
     pub fn needs_build_std(&self) -> bool {
         use Package::*;