diff --git a/client/python/scripts/check_version.py b/client/python/scripts/check_version.py
index d6156cb5b0..b37510fcb5 100644
--- a/client/python/scripts/check_version.py
+++ b/client/python/scripts/check_version.py
@@ -56,8 +56,9 @@
 REPO_ROOT = os.path.dirname(
     os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
 )
-NODE_PACKAGE = os.path.join(REPO_ROOT, "client", "node", "package.json")
-MCP_PACKAGE = os.path.join(REPO_ROOT, "packaging", "npm", "sysml-mcp", "package.json")
+PACKAGE_JSON = "package.json"
+NODE_PACKAGE = os.path.join(REPO_ROOT, "client", "node", PACKAGE_JSON)
+MCP_PACKAGE = os.path.join(REPO_ROOT, "packaging", "npm", "sysml-mcp", PACKAGE_JSON)
 JAVA_POM = os.path.join(REPO_ROOT, "client", "java", "pom.xml")
 RUST_CARGO = os.path.join(REPO_ROOT, "client", "rust", "opensysml", "Cargo.toml")
 KERNEL_VERSION_FILE = os.path.join(
@@ -236,7 +237,7 @@ def node_version(declared=None, node=None, tag=None):
     node = node_declared_version() if node is None else node
     return _client_version(
         "client/node/package.json",
-        "package.json",
+        PACKAGE_JSON,
         "npm",
         "The Node client",
         node,
diff --git a/packaging/npm/sysml-mcp/lib/platform.js b/packaging/npm/sysml-mcp/lib/platform.js
index d54d6cf23a..c0321bc49e 100644
--- a/packaging/npm/sysml-mcp/lib/platform.js
+++ b/packaging/npm/sysml-mcp/lib/platform.js
@@ -63,7 +63,7 @@ export function resolveBinary({ os, cpu, version, from = import.meta.url }) {
   try {
     manifestPath = require.resolve(`${name}/package.json`);
   } catch (error) {
-    if (error && error.code === "MODULE_NOT_FOUND") {
+    if (error?.code === "MODULE_NOT_FOUND") {
       throw new ShimError(
         `${PACKAGE_NAME}: the platform package ${name}@${version} is not installed. ` +
           "It is an optional dependency, so an install with --no-optional or --omit=optional " +
diff --git a/scripts/install-mcp-publisher.sh b/scripts/install-mcp-publisher.sh
index 981fa8442c..eff57ebfa1 100755
--- a/scripts/install-mcp-publisher.sh
+++ b/scripts/install-mcp-publisher.sh
@@ -30,6 +30,7 @@ arch="$(uname -m)"
 case "$arch" in
   x86_64) arch=amd64 ;;
   aarch64 | arm64) arch=arm64 ;;
+  *) ;; # any other machine name is looked up as uname spells it
 esac
 platform="${os}_${arch}"
 expected="${MCP_PUBLISHER_SHA256[$platform]:-}"
diff --git a/scripts/mcp-stdio-probe.mjs b/scripts/mcp-stdio-probe.mjs
index aa209dbb95..83ce0a87a0 100755
--- a/scripts/mcp-stdio-probe.mjs
+++ b/scripts/mcp-stdio-probe.mjs
@@ -68,7 +68,8 @@ const timer = setTimeout(() => fail(`no complete answer within ${timeout} ms`),
 child.on("exit", (code, signal) => {
   clearTimeout(timer);
   if (verdict === 0 && code !== 0) {
-    process.stderr.write(`mcp-stdio-probe: the server ended with ${signal ?? `status ${code}`} after a clean probe\n`);
+    const ending = signal ?? `status ${code}`;
+    process.stderr.write(`mcp-stdio-probe: the server ended with ${ending} after a clean probe\n`);
     verdict = 1;
   }
   process.exit(verdict);
diff --git a/scripts/npm-publish-missing.sh b/scripts/npm-publish-missing.sh
index 58bdd2c806..b0cffeea18 100755
--- a/scripts/npm-publish-missing.sh
+++ b/scripts/npm-publish-missing.sh
@@ -11,7 +11,8 @@ tag=$1
 shift
 
 manifest() {
-	if [[ -d "$1" ]]; then cat "$1/package.json"; else tar -xOf "$1" package/package.json; fi
+	local package=$1
+	if [[ -d "$package" ]]; then cat "$package/package.json"; else tar -xOf "$package" package/package.json; fi
 }
 
 for package in "$@"; do