diff --git a/README.md b/README.md
index 5c627ba..f85dec7 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,7 @@ jobs:
     if: >
       (github.event_name == 'pull_request' && github.event.pull_request.draft == false) ||
       (github.event_name == 'issue_comment' && github.event.issue.pull_request != null &&
+       startsWith(github.event.comment.body, '/codeboarding') &&
        contains(fromJSON('["OWNER","MEMBER","COLLABORATOR"]'), github.event.comment.author_association))
     steps:
       - uses: CodeBoarding/CodeBoarding-action@v1
diff --git a/action.yml b/action.yml
index a142d58..416a3ce 100644
--- a/action.yml
+++ b/action.yml
@@ -1,5 +1,5 @@
-name: 'CodeBoarding Architecture Diff (Mermaid)'
-description: 'Posts a PR comment with a Mermaid architecture diagram showing which components changed (green added / yellow modified / red deleted) — nodes and arrows.'
+name: 'CodeBoarding Review'
+description: 'Visual system-design review on pull requests: a Mermaid diagram of the architectural changes — added, modified, and deleted components and relations.'
 author: 'CodeBoarding'
 
 branding: