Add HuggingFace dataset card metadata (YAML)

dataset_card.md

@@ -1,42 +1,69 @@
 ---
 dataset_info:
+  config_name: default
   features:
     - name: cell_id
       dtype: string
-    - name: soma_joinid
-      dtype: int64
-    - name: tissue
+    - name: tissue_general
+      dtype: string
+    - name: cell_type
       dtype: string
     - name: disease
       dtype: string
-    - name: cell_type
+    - name: dataset_id
       dtype: string
+    - name: expression
+      dtype: sequence
   splits:
     - name: balanced_test
       num_examples: 19250
     - name: decorrelated_test
       num_examples: 14420
-  download_size: 607MB
-  dataset_size: 607MB
+  download_size: 608MB
+  dataset_size: 608MB
 language:
   - en
 license: cc-by-4.0
-multilinguality:
-  - monolingual
-pretty_name: SC-ShortcutBench (Private Test Set)
+task_categories:
+  - tabular-classification
+task_ids:
+  - evaluation
 tags:
   - single-cell
-  - genomics
-  - bias
-  - foundation-models
-  - benchmark
+  - test-set
   - evaluation-only
+  - restricted-access
+pretty_name: SC-ShortcutBench (Private Test Set)
 ---
 
 # SC-ShortcutBench: Private Test Dataset
 
-**EVALUATION-ONLY** expression data for fair benchmark assessment.
+⚠️ **EVALUATION-ONLY** - Restricted access for fair benchmark evaluation
+
+## Access Restriction
+
+This is the test split of SC-ShortcutBench. Manual approval required.
+
+**DO NOT** train models on this data.
+
+Use public dataset (Khalilbraham/sc-shortcutbench-public) for development.
+
+## Request Access
+
+Click "Request Access" on this page and provide:
+- Your institution
+- Intended use (evaluation-only)
+- Commitment to proper usage
+
+## Citation
 
-⚠️ **Important**: This dataset is for evaluation purposes only. Do NOT train models on this data.
+```
+@article{sc_shortcutbench_2026,
+  title={SC-ShortcutBench: A Conflict-Row Benchmark for Metadata Shortcut Reliance in Single-Cell Foundation Models},
+  author={Your Authors},
+  journal={NeurIPS Datasets and Benchmarks Track},
+  year={2026}
+}
+```
 
-See PRIVATE_USAGE.md for approved usage and evaluation protocol.
+See README.md for complete usage guidelines.