small fixes

Author: JacobSzwejbka

.github/workflows/pin-bump-ci-handler.yml

@@ -50,7 +50,7 @@ jobs:
               owner, repo, issue_number: prNumber, per_page: 100
             });
             const fixAttempts = comments.data.filter(
-              c => c.body && c.body.includes('[ci-fix-attempt')
+              c => c.body && c.body.startsWith('@claude [ci-fix-attempt')
             ).length;
 
             if (conclusion === 'success') {

.github/workflows/weekly-pytorch-pin-bump.yml

@@ -72,7 +72,8 @@ jobs:
           fi
 
           NIGHTLY="${{ steps.nightly.outputs.version }}"
-          PR_BODY="## Summary
+          read -r -d '' PR_BODY <<EOF || true
+          ## Summary
 
           Automated weekly PyTorch pin bump.
 
@@ -82,7 +83,9 @@ jobs:
 
           This PR was created automatically. If CI fails, Claude will attempt to fix issues (up to 3 attempts). If CI still fails, human review will be requested.
 
-          cc @jakeszwe"
+          cc @jakeszwe
+          EOF
+          PR_BODY=$(echo "${PR_BODY}" | sed 's/^          //')
 
           gh pr create \
             --title "Bump PyTorch pin to nightly ${NIGHTLY}" \