diff --git a/vscode-extension/server/src/metadata/prelude-completions.ts b/vscode-extension/server/src/metadata/prelude-completions.ts
index 1b9992a..7985daa 100644
--- a/vscode-extension/server/src/metadata/prelude-completions.ts
+++ b/vscode-extension/server/src/metadata/prelude-completions.ts
@@ -8,6 +8,57 @@ export type CompletionMetadata = {
 
 export const completions = {
   modules: {
+  "date": {
+    "now": {
+      "params": []
+    },
+    "year": {
+      "params": [
+        "time"
+      ]
+    },
+    "month": {
+      "params": [
+        "time"
+      ]
+    },
+    "date": {
+      "params": [
+        "time"
+      ]
+    },
+    "hour": {
+      "params": [
+        "time"
+      ]
+    },
+    "minute": {
+      "params": [
+        "time"
+      ]
+    },
+    "second": {
+      "params": [
+        "time"
+      ]
+    },
+    "ms": {
+      "params": [
+        "time"
+      ]
+    },
+    "new": {
+      "params": [
+        "year",
+        "month",
+        "day",
+        "hour",
+        "minute",
+        "second",
+        "ms"
+      ]
+    }
+  },
   "dict": {
     "keys": {
       "params": [
@@ -529,7 +580,10 @@ export const completions = {
       ]
     },
     "random": {
-      "params": []
+      "params": [
+        "min",
+        "max"
+      ]
     },
     "clamp": {
       "params": [
diff --git a/vscode-extension/server/src/metadata/prelude-names.ts b/vscode-extension/server/src/metadata/prelude-names.ts
index 9e268b8..5ca2f3e 100644
--- a/vscode-extension/server/src/metadata/prelude-names.ts
+++ b/vscode-extension/server/src/metadata/prelude-names.ts
@@ -6,7 +6,9 @@ export const PRELUDE_NAMES = [
   "array?",
   "at",
   "bnot",
+  "boolean",
   "boolean?",
+  "date",
   "dec",
   "describe",
   "dict",
@@ -24,15 +26,18 @@ export const PRELUDE_NAMES = [
   "json",
   "length",
   "list",
+  "list?",
   "load",
   "math",
   "not",
   "null?",
+  "number",
   "number?",
   "range",
   "ref",
   "some?",
   "str",
+  "string",
   "string?",
   "type",
   "var",