diff --git a/src/schemas/json/partial-pdm.json b/src/schemas/json/partial-pdm.json
index c740d8fea14..967eced998e 100644
--- a/src/schemas/json/partial-pdm.json
+++ b/src/schemas/json/partial-pdm.json
@@ -55,7 +55,16 @@
         }
       ]
     },
-
+    "script-help": {
+      "type": "string",
+      "description": "Help text for the script",
+      "examples": ["Run the tests"],
+      "x-taplo": {
+        "links": {
+          "key": "https://pdm-project.org/latest/usage/scripts/#show-the-list-of-scripts"
+        }
+      }
+    },
     "pdm-script": {
       "anyOf": [
         {
@@ -78,6 +87,9 @@
                 },
                 "env_file": {
                   "$ref": "#/definitions/env-file"
+                },
+                "help": {
+                  "$ref": "#/definitions/script-help"
                 }
               }
             },
@@ -105,6 +117,9 @@
                 },
                 "env_file": {
                   "$ref": "#/definitions/env-file"
+                },
+                "help": {
+                  "$ref": "#/definitions/script-help"
                 }
               }
             },
@@ -123,6 +138,9 @@
                 },
                 "env_file": {
                   "$ref": "#/definitions/env-file"
+                },
+                "help": {
+                  "$ref": "#/definitions/script-help"
                 }
               }
             },
@@ -146,6 +164,9 @@
                 },
                 "env_file": {
                   "$ref": "#/definitions/env-file"
+                },
+                "help": {
+                  "$ref": "#/definitions/script-help"
                 }
               }
             }
@@ -422,6 +443,17 @@
         }
       }
     },
+    "plugins": {
+      "type": "array",
+      "description": "List of PDM plugins required for this project",
+      "items": { "type": "string" },
+      "examples": [["pdm-packer"]],
+      "x-taplo": {
+        "links": {
+          "key": "https://pdm-project.org/latest/dev/write/#specify-the-plugins-in-project"
+        }
+      }
+    },
     "source": {
       "type": "array",
       "description": "Sources used for package resolution",
diff --git a/src/test/pyproject/pdm_tool.toml b/src/test/pyproject/pdm_tool.toml
index 9fa6c36058c..907ed87d1e1 100644
--- a/src/test/pyproject/pdm_tool.toml
+++ b/src/test/pyproject/pdm_tool.toml
@@ -1,6 +1,7 @@
 
 
 [tool.pdm]
+plugins = ["sync-pre-commit-lock"]
 package-type = "application" # can be library or application
 allow_prereleases = true # https://pdm-project.org/latest/usage/config/#allow-prereleases-in-resolution-result
 ignore_package_warnings = [
@@ -44,6 +45,7 @@ _.env_file = ".env"                                    # https://pdm-project.org
 start.cmd = "flask run -p 54321"
 start.env = { FOO = "bar", FLASK_ENV = "development" }
 start.env_file = ".env"
+start.help = "Start the server"
 
 start1 = { cmd = "flask run -p 54321", env_file = { override = ".env" } }