disclose-gen-ai: unreviewed agent PRs are drafts with a caveat

Generated-by: Claude Opus 5.5

disclose-gen-ai/SKILL.md

@@ -34,6 +34,17 @@ Generated-by: Claude Opus 5.5
   trailer only on those commits. Don't add it to every commit.
 - **PR descriptions:** say which parts were AI-generated. The commit
   trailers stay the record that counts.
+- **Unreviewed PRs are drafts.** When an agent opens a PR the human
+  hasn't read yet, open it as a draft (`gh pr create --draft`) and
+  start the description with:
+
+  ```
+  > [!WARNING]
+  > **Unreviewed LLM output.** Generated by <Tool> <Version>; no human
+  > has reviewed this code yet.
+  ```
+
+  The human removes the caveat and marks it ready after reviewing.
 - **The human stays responsible.** The commit author vouches for the
   contribution. That includes disclosing material that is not their
   original creation, and making sure the tool's terms grant enough