3-step differentiated retry for a failing artifact slug: switch tier, drop optional components, fall back to default design. Invokes `paperboard regenerate`.
Regenerate the Paperboard Gallery — a local HTML index of all rendered artifact triples. Invokes `paperboard gallery` via the atv-paperboard CLI.
Render a structured input (JSON or Markdown) into a paired HTML + DESIGN.md + meta.yaml artifact triple.
Run ENFORCE checks on a rendered artifact slug: Google design.md lint + HTML-side color-token trace. Reports ACCEPT or FAIL with fail_class. Invokes `paperboard validate`.
Bind agent-authored `.DESIGN.md` files to paperboard's design doctrine. Loads the impeccable anti-slop methodology (vendored, Apache 2.0, pinned to commit…