SAN FRANCISCO — The gig economy’s least-favorite lawyer has launched a new suit against app-enabled food delivery service Caviar Inc. that could test the boundaries of a fresh appeals court decision limiting the ability of companies to disperse class actions.

The complaint filed by Shannon Liss-Riordan of Boston-based Lichten & Liss-Riordan against Caviar on Monday is the second class action she has brought against the company in as many years. The first fizzled last winter after a judge agreed with the company’s lawyers at Keker & Van Nest that the lead plaintiff was bound by an agreement to arbitrate his claims on an individual basis.