Tokenize open disclosure attributes

Authored-By: Codex (GPT-5) <noreply@openai.com>

tests/bin/curl

@@ -62,8 +62,10 @@ printf '%s\n' "${PR_BODY}" | awk '
       next
     }
     if (lower ~ /^[ ]{0,3}<details([[:blank:]>])/) {
-      if (lower ~ /[[:blank:]]open([[:blank:]=>]|$)/) print "<details open=\"\">"
-      else print "<details>"
+      attributes=lower
+      gsub(/"[^"]*"/, "", attributes)
+      if (attributes ~ /[[:blank:]]open([[:blank:]=>]|$)/) sub(/<details open>/, "<details open=\"\">", line)
+      print line
       next
     }
     if (line ~ /^## Tracking[[:space:]]*$/) print "<h2>Tracking</h2>"

tests/run

@@ -185,6 +185,9 @@ check_contract_pass "open details preserve visible provenance" \
 check_contract "open details inside collapsed details remain hidden" \
   $'<details><summary>Release notes</summary>\n<details open><summary>Visible only after expansion</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>\n</details>' \
   "$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
+check_contract "open text in another details attribute remains collapsed" \
+  $'<details title="x open y"><summary>Release notes</summary>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>\n</details>' \
+  "$BASE" "$GOOD_HEAD" "PR body must contain a non-empty ## Tracking section"
 check_contract_pass "unrelated collapsed details remain available" \
   $'<details><summary>Logs</summary>\n\nSupporting output\n</details>\n\n## Tracking\n- Fixes bug-x7k2m9 — https://agenthub.fritzlab.net/bug-x7k2m9\n\n## Attribution\n- Authored-By: Codex (GPT-5) <noreply@openai.com>' \
   "$BASE" "$GOOD_HEAD"