diff --git a/.github/workflows/release-pr-checks.yml b/.github/workflows/release-pr-checks.yml
index 1038e16..bf7ee02 100644
--- a/.github/workflows/release-pr-checks.yml
+++ b/.github/workflows/release-pr-checks.yml
@@ -39,6 +39,7 @@ on:
 # head SHA. Nothing here writes to a PR.
 permissions:
   actions: write
+  checks: read
   contents: read
   pull-requests: read
 
diff --git a/crates/kernels/src/matmul/mod.rs b/crates/kernels/src/matmul/mod.rs
index 0c8cdae..7657036 100644
--- a/crates/kernels/src/matmul/mod.rs
+++ b/crates/kernels/src/matmul/mod.rs
@@ -130,7 +130,7 @@ fn check_matmul_shape(m: i32, n: i32, k: i32) -> Result<()> {
 ///
 /// - [`Error::UnsupportedShape`] if `M`/`N`/`K` would drive an
 ///   element-index product past `i32::MAX` inside the kernel.
-/// - [`Error::NoGpuBuild`] if `hipcc` wasn't available at build time.
+/// - [`Error::NoGpuBuild`] for an explicit CPU-only build.
 /// - [`Error::Hip`] if the stream's device cannot be made current.
 /// - [`Error::Launch`] if the kernel fails.
 ///