diff --git a/action.yml b/action.yml
index 9d8e5383..53729e66 100644
--- a/action.yml
+++ b/action.yml
@@ -55,7 +55,7 @@ inputs:
   
   committer_token:
     description: GitHub Token used to commit metrics
-    default: <default-value>
+    default: ${{ github.token }}
   
   committer_branch:
     description: Target branch
@@ -485,7 +485,7 @@ inputs:
   
   plugin_stargazers_charts_type:
     description: Charts display type
-    default: null
+    default: <default-value>
   
   # ====================================================================================
   # 🗂️ Active projects
@@ -989,7 +989,7 @@ inputs:
   
   plugin_fortune:
     description: Enable fortune plugin
-    default: no
+    default: <default-value>
   
   # ====================================================================================
   # 💉 Nightscout
diff --git a/source/app/metrics/metadata.mjs b/source/app/metrics/metadata.mjs
index 3f26da47..c71ba033 100644
--- a/source/app/metrics/metadata.mjs
+++ b/source/app/metrics/metadata.mjs
@@ -228,7 +228,7 @@ metadata.plugin = async function({__plugins, __templates, name, logger}) {
           key,
           {
             comment:comments[key] ?? `# ${value.description}`,
-            descriptor:yaml.dump({[key]:Object.fromEntries(Object.entries(value).filter(([key]) => ["description", "default", "required"].includes(key)).map(([k, v]) => k === "description" ? [k, v.split("\n")[0]] : k === "default" ? [k, "<default-value>"] : [k, v]))}, {quotingType:'"', noCompatMode:true}),
+            descriptor:yaml.dump({[key]:Object.fromEntries(Object.entries(value).filter(([key]) => ["description", "default", "required"].includes(key)).map(([k, v]) => k === "description" ? [k, v.split("\n")[0]] : k === "default" ? [k, /^\$\{\{[\s\S]+\}\}$/.test(v) ? v : "<default-value>"] : [k, v]))}, {quotingType:'"', noCompatMode:true}),
           },
         ]),
       )