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MichaelandClaude Sonnet 5.5
c8f103c148
It was a text.newParagraph and a text.insert per line. Each Session::run that edits snapshots the whole document for Undo and for rollback, so a command costs about the document's size: 10,000 lines took 2.8 s through MCP (release build; doubling the lines cost 2.4-3.2x), and left an Undo step per line. text.insert already takes a carriage return as a paragraph break, so the lines go in as one command: ~10 ms for 10,000 (linear), one Undo step. Measured per call on a 10,000-paragraph document (release, microseconds): text.newParagraph 188 in run (61 + 66 for the two snapshots, 53 in the handler), text.insert of one character 85 (47 snapshot, 31 handler), and caret.docEnd 261, all in its handler (it finds the last paragraph by listing them all). The snapshots are the bulk, which is why a command per line cannot be linear; this does not change them. Behaviour: a CRLF is one break, not two (the per-line way inserted the carriage return as a break and then added its own). The breaks no longer run Enter's AutoCorrect: the per-line way capitalised every line but the last (no Enter followed it) and fixed typos there, so what came out depended on the line's place; the text now goes in as written, as the tool's raw insert already did within each line. Test: the paragraphs made equal those of the per-line way (in a list and not, blank lines, leading and trailing breaks, indents, tabs) for text AutoCorrect has nothing to change; lowercase lines and a typo stay as written; CRLF; one Undo removes every line. Fails on the old code. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>