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+---
+Repo: 'https://github.com/w3c/silver'
+Tracked: N/A
+Title: Invalid w3c.json data
+---
+
+The w3c.json file in this repo does not follow the [expected data model](https://w3c.github.io/w3c.json.html). The following errors were detected:
+* [ ] unknown group name: "tf/silver-tf"
+
+<sub>This issue was detected and reported semi-automatically by [validate-repos](https://github.com/w3c/validate-repos/).</sub>