BRAND_CONSTRAINT_ERROR
BRAND_CONSTRAINT_ERROR is a lint error: a caller-selected Brand constraint failed with error action and therefore blocks verification.
What triggers it. The same final-Scene rules as BRAND_CONSTRAINT_WARNING, selected with action: "error" when a project wants its declared brand policy to flip verify.ok.
How to fix it. Correct the StyleSpec or diagram paint named by the payload, or deliberately change that constraint to action: "warn". Suppression does not repair the visual issue.
Run am verify diagram.mmd --json, inspect this code, and apply the smallest source or typed mutation that clears it. If it persists after two mechanical attempts, return the warning and ask for human review.
In the cloned repo, am is bun run bin/am.ts.
Machine-readable: this page as Markdown.
Back to all warning codes, or open a blank editor to try a fix.