diff --git a/CHANGELOG.md b/CHANGELOG.md
index ee94de5..a14843c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Delta Coverage Action
 
+## 1.1
+
+- Added custom script to generate extra check run content
+
 ## 1.0
 
 - Now the action generates coverage badges for each test view.
diff --git a/action.yaml b/action.yaml
index 7234943..998eb93 100644
--- a/action.yaml
+++ b/action.yaml
@@ -25,6 +25,11 @@ inputs:
     required: false
     default: 'delta-coverage'
 
+  check-run-extra-render-script:
+    description: 'Script to render additional info in check run.'
+    required: false
+    default: ''
+
 outputs:
   badges-dir:
     description: 'Directory with generated badges.'
@@ -95,6 +100,12 @@ runs:
         github-token: ${{ inputs.github-token }}
         script: |
           const createCheckRuns = require('${{ github.action_path }}/src/create-check-runs.js');
+          const extraRenderScript = (view) => {
+            const script = ${{ inputs.check-run-extra-render-script || '(v) => ""' }};
+            try { return script(view) } catch(e) { 
+             return `Error in custom script: ${e}`
+            };
+          };
           const checkRuns = await createCheckRuns({
             summaryReportPath: `${{ steps.all-summaries.outputs.delta }}`,
             ignoreCoverageFailure: ${{ steps.check-suppress.outputs.suppress }},
@@ -102,7 +113,8 @@ runs:
             context: context,
             github: github,
             headSha: `${{ github.event.pull_request.head.sha || github.sha }}`,
-            externalId: `${{ inputs.external-id }}`
+            externalId: `${{ inputs.external-id }}`,
+            summaryExtraFun: extraRenderScript
           });
           core.setOutput('check-runs', checkRuns);
 
diff --git a/src/create-check-runs.js b/src/create-check-runs.js
index aed5ec0..67b05e0 100644
--- a/src/create-check-runs.js
+++ b/src/create-check-runs.js
@@ -31,7 +31,8 @@ module.exports = async (ctx) => {
     const createCheckRun = async (view) => {
         const conclusion = computeViewConclusion(view);
         const viewName = capitalize(view.view);
-        const summary = `${readViewMarkdownReport(view)}\n\n<!-- This is Delta Coverage CheckRun -->`;
+        const summaryExtra = ctx.summaryExtraFun ? ctx.summaryExtraFun(view) : '';
+        const summary = `${readViewMarkdownReport(view)}\n\n<!-- This is Delta Coverage CheckRun -->\n${summaryExtra}`;
 
         const response = await ctx.github.rest.checks.create({
             owner: ctx.context.repo.owner,