Count Sentences in Markdown Table Cells for the Sentence-Length Check #3456

Summary

prose_lint.py --check sentence-length never counts a sentence inside a Markdown table cell, so an over-cap sentence in a cell passes the gate. It reads only paragraph inline units, and a table cell is not one. Tables in the fleet's docs often hold full-sentence prose, such as the environment-variable tables, so the cap goes unchecked there.

Repro

W="one two three four five six seven eight nine ten eleven twelve thirteen fourteen fifteen sixteen seventeen eighteen nineteen twenty twentyone twentytwo twentythree twentyfour twentyfive twentysix twentyseven."
printf '# Probe\n\n| Name | Effect |\n| --- | --- |\n| `X` | %s |\n\n%s\n' "$W" "Para $W" > probe.md
python3 scripts/prose_lint.py --check sentence-length probe.md

Expected: two violations, at line 5 (the 27-word cell) and line 7 (the 28-word paragraph). Actual: only probe.md:7 is reported.

Done

A table cell's text is split into sentences and held to the same cap as a paragraph, and a test covers a cell.

🤖 Generated with Claude Code