SC1 (zero `ultra` refs) was a pre-existing false-positive on
docs/cc-upgrade-2.1.181-decision-matrix.md, which cites real CC features:
`ultracode` (a CC keyword, 2.1.160) and the `ultra-cc-architect` plugin
name. Rewording would make the doc factually wrong, so the file is
excluded via exclude_path() — same pattern as CHANGELOG/MIGRATION.
Tooling-only (verify.sh); no version bump. verify.sh 7/0, suite 809 (807/0/2).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013J12WFAbngQNMTJMoybD7N
The ultra-cc-architect plugin was removed from the marketplace; voyage's
architecture-discovery contract still pointed at it by name. Replaced
verbatim references with plugin-agnostic phrasing ("upstream architect
producer") in code comments and user-facing warning messages.
CHANGELOG entries and config-audit v5.0.0 snapshots intentionally
preserved as historical records.
