diff --git a/.github/workflows/ci-validate.yaml b/.github/workflows/ci-validate.yaml
new file mode 100644
index 0000000..a964cd9
--- /dev/null
+++ b/.github/workflows/ci-validate.yaml
@@ -0,0 +1,49 @@
+
+name: Validate bdf.yaml
+
+on:
+    workflow_call: 
+        inputs:
+            python-version:
+                required: true
+                type: string
+                default: '3.9'
+            validation-branch:
+                required: false
+                type: string
+                default: 'main'
+            schema-url:
+              required: false
+              type: string
+              default: 'https://raw.githubusercontent.com/ARPA-H-BDF/bdfkb-schema/refs/heads/main/src/bdfkb_schema/schema/bdfkb_schema.yaml'
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+
+        steps:
+            - name: Checkout code
+              uses: actions/checkout@v4
+
+            - name: Checkout source repository (where validate.py lives)
+              uses: actions/checkout@v4
+              with:
+                repository: ARPA-H-BDF/bdfkb-schema
+                ref: ${{ inputs.validation-branch }}
+                path: validation-source
+
+            - name: Set up Python
+              uses: actions/setup-python@v4
+              with:
+                python-version: ${{ inputs.python-version }}
+                
+            - name: Install dependencies
+              run: |
+                python -m pip install --upgrade pip
+                pip install linkml
+
+            - name: Validate yaml
+              run: |
+                python ./validation-source/src/validation/validate.py ${{inputs.schema-url}}
+
+            
diff --git a/bdf.yaml b/bdf.yaml
new file mode 100644
index 0000000..0c4cd1c
--- /dev/null
+++ b/bdf.yaml
@@ -0,0 +1,74 @@
+version: 0.1.0
+
+tool:
+  name: Representativeness Exploration and Comparison Tool - REACT
+  repo_url: https://github.com/MIDRC/MIDRC-REACT
+  tool_homepage: https://github.com/MIDRC/MIDRC-REACT
+  documentation_url: https://midrc.github.io/MIDRC-REACT/
+  tool_type: Script
+
+llm:
+  usesLlm: false
+  bringOwnKey: false
+
+input:
+  - name: Imaging structured 1
+    dataCategory: imaging
+    dataClass: structured
+    dataType: radiology
+    format:
+      - csv
+    dataStandard:
+      - dicom
+    proprietary: false
+    source: https://data.midrc.org/
+
+output:
+  - name: Imaging Tabular 1
+    dataCategory: imaging
+    dataClass: tabular
+    dataType: radiology
+    format:
+      - csv
+    dataStandard:
+      - dicom
+    proprietary: false
+    source: https://data.midrc.org/
+
+license:
+  license_type: Apache-2.0
+  link: https://github.com/MIDRC/MIDRC-REACT/blob/master/LICENSE
+
+funding:
+  source: Developed for MIDRC creation with NIBIB, and then generalized and converted to tool via ARPA-H BDF
+  agreement: Not specified
+  link: ""
+
+domains:
+  - Imaging and other AI input domains
+
+credit:
+  - name: MIDRC
+    role: Developer
+    org: Medical Imaging and Data Resource Center
+    url: https://www.midrc.org/
+
+target_users:
+  primary_user:
+    user_type: researcher
+    technical_literacy_level:
+      - intermediate
+    biomedical_literacy_level:
+      - intermediate
+
+maturity:
+  beginning_maturity: 1
+  current_maturity: 8
+
+media:
+  [
+    { "link": "https://www.youtube.com/watch?v=PFa6EUqE-G8" },
+    { "link": "https://player.vimeo.com/video/998029033" },
+  ]
+
+collaborations: []