diff --git a/.github/workflows/test_ci.yaml b/.github/workflows/test_ci.yaml
new file mode 100644
index 0000000..4ae09b1
--- /dev/null
+++ b/.github/workflows/test_ci.yaml
@@ -0,0 +1,24 @@
+---
+name: Test CI
+
+on:
+  pull_request:
+    paths: [.github/workflows/test_ci.yaml, action.yml]
+
+jobs:
+  ci:
+    runs-on: ubuntu-24.04
+
+    permissions:
+      contents: read # Required to checkout repository.
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        with:
+          fetch-depth: 0
+          persist-credentials: false
+
+      - name: Changed diff-tree
+        id: changed
+        uses: ./
diff --git a/README.md b/README.md
index a7e9ee4..35471f2 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,13 @@
-[![GitHub license](https://img.shields.io/github/license/op5dev/diff-tree?logo=apache&label=License)](LICENSE "Apache License 2.0.")
-[![GitHub release tag](https://img.shields.io/github/v/release/op5dev/diff-tree?logo=semanticrelease&label=Release)](https://github.com/op5dev/diff-tree/releases "View all releases.")
+[![GitHub license](https://img.shields.io/github/license/op5dev/changed-diff-tree?logo=apache&label=License)](LICENSE "Apache License 2.0.")
+[![GitHub release tag](https://img.shields.io/github/v/release/op5dev/changed-diff-tree?logo=semanticrelease&label=Release)](https://github.com/op5dev/changed-diff-tree/releases "View all releases.")
 *
-[![GitHub repository stargazers](https://img.shields.io/github/stars/op5dev/diff-tree)](https://github.com/op5dev/diff-tree "Become a stargazer.")
+[![GitHub repository stargazers](https://img.shields.io/github/stars/op5dev/changed-diff-tree)](https://github.com/op5dev/changed-diff-tree "Become a stargazer.")
 
-# Diff-Tree
+# Changed Diff-Tree ±
 
-Git diff-tree for a list of changed files or directories between commits for GitHub Action event triggers.
+Changed diff-tree for a list of changed files or directories between branches with GitHub Action event triggers
+
+TODO: https://github.com/orgs/community/discussions/25950
 
 ## Parameters
 
@@ -33,21 +35,21 @@ View [security policy and reporting instructions](SECURITY.md).
 
 ## Changelog
 
-View [all notable changes](https://github.com/op5dev/diff-tree/releases "Releases.") to this project in [Keep a Changelog](https://keepachangelog.com "Keep a Changelog.") format, which adheres to [Semantic Versioning](https://semver.org "Semantic Versioning.").
+View [all notable changes](https://github.com/op5dev/changed-diff-tree/releases "Releases.") to this project in [Keep a Changelog](https://keepachangelog.com "Keep a Changelog.") format, which adheres to [Semantic Versioning](https://semver.org "Semantic Versioning.").
 
 > [!TIP]
 >
 > All forms of **contribution are very welcome** and deeply appreciated for fostering open-source projects.
 >
-> - [Create a PR](https://github.com/op5dev/diff-tree/pulls "Create a pull request.") to contribute changes you'd like to see.
-> - [Raise an issue](https://github.com/op5dev/diff-tree/issues "Raise an issue.") to propose changes or report unexpected behavior.
-> - [Open a discussion](https://github.com/op5dev/diff-tree/discussions "Open a discussion.") to discuss broader topics or questions.
-> - [Become a stargazer](https://github.com/op5dev/diff-tree/stargazers "Become a stargazer.") if you find this project useful.
+> - [Create a PR](https://github.com/op5dev/changed-diff-tree/pulls "Create a pull request.") to contribute changes you'd like to see.
+> - [Raise an issue](https://github.com/op5dev/changed-diff-tree/issues "Raise an issue.") to propose changes or report unexpected behavior.
+> - [Open a discussion](https://github.com/op5dev/changed-diff-tree/discussions "Open a discussion.") to discuss broader topics or questions.
+> - [Become a stargazer](https://github.com/op5dev/changed-diff-tree/stargazers "Become a stargazer.") if you find this project useful.
 
 </br>
 
 ## License
 
 - This project is licensed under the permissive [Apache License 2.0](LICENSE "Apache License 2.0.").
-- All works herein are my own, shared of my own volition, and [contributors](https://github.com/op5dev/diff-tree/graphs/contributors "Contributors.").
+- All works herein are my own, shared of my own volition, and [contributors](https://github.com/op5dev/changed-diff-tree/graphs/contributors "Contributors.").
 - Copyright 2016-present [Rishav Dhar](https://github.com/rdhar "Rishav Dhar's GitHub profile.") — All wrongs reserved.
diff --git a/SECURITY.md b/SECURITY.md
index bc7ac54..9ab5818 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -11,4 +11,4 @@ Integrating security in your CI/CD pipeline is critical to practicing DevSecOps.
 
 ## Reporting a Vulnerability
 
-You must never report security related issues, vulnerabilities or bugs including sensitive information to the issue tracker, or elsewhere in public. Instead, sensitive bugs must be sent by email to <contact@OP5.dev> or reported via [Security Advisory](https://github.com/op5dev/diff-tree/security/advisories/new "Create a new security advisory.").
+You must never report security related issues, vulnerabilities or bugs including sensitive information to the issue tracker, or elsewhere in public. Instead, sensitive bugs must be sent by email to <contact@OP5.dev> or reported via [Security Advisory](https://github.com/op5dev/changed-diff-tree/security/advisories/new "Create a new security advisory.").
diff --git a/action.yml b/action.yml
index c9827aa..f052c0b 100644
--- a/action.yml
+++ b/action.yml
@@ -1,7 +1,7 @@
 ---
-name: Git Diff-Tree for Changed Files or Directories
+name: Changed Diff-Tree for Files or Directories
 author: Rishav Dhar (@rdhar)
-description: Git diff-tree for a list of changed files or directories between commits for GitHub Action event triggers.
+description: Changed diff-tree for a list of changed files or directories between branches with GitHub Action event triggers.
 
 runs:
   using: composite
@@ -28,10 +28,23 @@ outputs:
     value: placeholder
 
 inputs:
+  source_ref:
+    default: ""
+    description: "Source branch or commit SHA to compare from."
+    required: false
+  target_ref:
+    default: ""
+    description: "Target branch or commit SHA to compare against."
+    required: false
+  format:
+    default: "raw"
+    description: "Format output as: 'raw', 'json', or 'matrix'."
+    required: false
   token:
-    required: true
+    default: ${{ github.token }}
     description: "GitHub access token with 'read:org' scope (e.g., secrets.CI_PAT)."
+    required: true
 
 branding:
-  color: green
-  icon: user-check
+  color: gray-dark
+  icon: file-plus