Opus advisor review of stage-375 flagged that the protected-bracket set including `<` and `>` caused tables containing comparison operators across adjacent columns to mis-collapse: `| x < 5 | y > 10 |` matched `< ... >` as a bracket pair and stashed the inner pipe, producing one cell instead of two.
Real LLM table output uses angle brackets as comparison operators far more often than as content-grouping pairs, so the safer default is to NOT treat them as a matched pair. Dropped `<` from the opener class and `>` from both closer classes.
Three regression tests added (`TestComparisonOperatorsAcrossColumns` class): `< … >` across columns, `<` alone, `>` alone.
PR #2428's iterative _protectPipes regex introduced two issues we caught during stage assembly:
1. The negated character classes [^)\]}'>] added `'` as a stop character. That breaks cells containing string-literal pipes like `('a'|'b')` (Python type-union examples) — they would still mis-split. Dropped the apostrophe-stop.
2. The literal `}` inside the regex character classes confused the brace-counting extractFunc driver in tests/test_renderer_js_behaviour.py, breaking all 45 existing node-driven renderer tests. Rewrote both brace literals as hex escapes (\\x7b and \\x7d) — semantically identical at the regex-engine level but the JS source carries no bare brace glyph.
Also added tests/test_issue2428_table_pipe_protection.py with 9 regression tests covering single-pipe, multi-pipe-in-brackets, apostrophes-with-pipes, and the KaTeX \$...\$ guard.
Opus advisor on stage-371 caught three issues during pre-release review:
1. RTL salvage missed KaTeX math (display equations + inline LaTeX), diff
blocks, CSV tables (column order must read left-to-right regardless of
chat direction), and .skill-file-path. The first salvage commit only
covered pre/code/kbd/samp/tt and tool-call bodies. Added a second
force-LTR block covering: .katex, .katex-block, .katex-display,
.katex-html, .katex-inline, .diff-block (+children), .csv-table-wrap,
.csv-table (+children), .skill-file-path. Severity: KaTeX is the most
user-visible gap — any user rendering math under RTL would see flipped
equations.
2. Quota chip @media (max-width:1400px) hide rule conflicted at exactly
1400px with the existing @media (min-width:1400px) .messages-inner
rule — chip was hidden AT the wide-desktop boundary where it should
first appear. Changed to (max-width:1399.98px). Visually verified at
1400px: chip now correctly visible there.
3. Dead .icon-btn.provider-quota-chip selector — chip never has icon-btn
class. Removed.
Test added: test_rtl_math_and_tables_stay_ltr (pins the 4 new LTR
surfaces). Also removed dead code in test_rtl_code_blocks_stay_ltr
(unused code_block variable).
Per stage-fix protocol: SHIP-with-followup applied on the stage rather
than the source PR, since #2409 is already merged-into-stage and
nesquena-approved. Stage-371 review-bypass batch path still holds.
nesquena-hermes