C-4/C-9: Step 9 (post-lock) gets a scoped fact-reviewer (F1/F3) + language-reviewer
(L1/L2) pass over the four feed-facing surfaces — delingstekst hook, samle post,
carousel slide text, edition title — plus a title-strength gate, before the hook
conversion binary. Placed at Step 9 (first phase where all four exist; operates on
distribution copy only, never the locked body — body/canonical-title defect = pivot).
C-6: deterministic post-factcheck fact-invariant after Step 5 — any later fold-in
whose diff touches a sentence with numbers, names, or quotes fires a mandatory scoped
fact-reviewer mini-recheck (not a judgment call), closing the pivot-heuristic blind
spot; enforced at the 6.5 + 7 fold-in sites.
C-7: WebFetch added to fact-checker + fact-reviewer (verbatim source text for quote
precision / exact-figure attribution).
TDD RED→GREEN: test-runner Section 16p (8 unconditional greps + non-vacuity
self-test), anti-erosion floor 129 → 137. Suite 146 → 154/0. Domain-general.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014bE7VbkmR3cqHFEeGfzgwb
Kjell Tore Guttormsen
34c6c854c0