diff --git a/Cargo.lock b/Cargo.lock
index bb8a9c4..977068c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1566,8 +1566,13 @@ dependencies = [
 name = "picloud-executor-core"
 version = "0.6.0"
 dependencies = [
+ "base64",
  "chrono",
+ "hex",
+ "percent-encoding",
  "picloud-shared",
+ "rand 0.8.6",
+ "regex",
  "rhai",
  "serde",
  "serde_json",
diff --git a/Cargo.toml b/Cargo.toml
index d2f1056..b3f5ff5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -74,6 +74,12 @@ sha2 = "0.10"
 base64 = "0.22"
 data-encoding = "2.6"
 
+# Stdlib utility crates (v1.1.0 stdlib PR — registered into the
+# Rhai engine as the regex::/random::/etc. namespaces)
+regex = "1"
+hex = "0.4"
+percent-encoding = "2"
+
 [workspace.lints.rust]
 unsafe_code = "forbid"
 
diff --git a/crates/executor-core/Cargo.toml b/crates/executor-core/Cargo.toml
index 1ab142b..1b13667 100644
--- a/crates/executor-core/Cargo.toml
+++ b/crates/executor-core/Cargo.toml
@@ -18,3 +18,10 @@ tracing.workspace = true
 uuid.workspace = true
 chrono.workspace = true
 rhai.workspace = true
+
+# Stdlib utility modules — see crates/executor-core/src/sdk/stdlib/.
+regex.workspace = true
+rand.workspace = true
+base64.workspace = true
+hex.workspace = true
+percent-encoding.workspace = true