resolve-backport-conflicts

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

• Third-party content exposure detected (medium risk: 0.30). The runtime workflow runs gh pr view <N> ... --json title,body,url and gh pr diff <N> to read the original pull request’s body/diff (outsider-authored content submitted by PR author) and also checks out and inspects that PR branch to resolve conflicts.