The rendering doc's running log of finished work is folded into the
architecture section and the rest dropped: what remains is why the code
is the way it is, the harness, and what is next.
The highlights bug is bigger than the backwards span we already drop.
The library pairs every `/*` with an `*/` by ordinal position and uses
the same delimiters for every language, so a shell glob opens a comment
and `//` in any URL comments out the rest of its line, taking the
keywords and strings inside it with it. highlights-repro.sh asks the
library directly, outside the app, since none of this is visible on a
phone.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Warming covers a settled message, so it did not reach the block a reply is
still writing: that one was re-lexed at every delta, on the composing
thread. Measured streaming a two-hundred-line Kotlin fence -- 211 lexes,
13.7 seconds across the turn, the worst 177ms -- for colours on text being
replaced as fast as they were computed.
A live reply's last segment now draws its code plain and takes its colours
when the block freezes, which for a finished fence is as soon as the next
block starts. The settle-time lex then happens in warm, off the drawing
thread. Same fixture after: one lex of 374ms in warm, draw phase 1.51ms to
1.01ms per frame while streaming, and the fence coloured on screen once the
reply settles.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Two things the measurements for the previous commit turned up.
Highlighting a fence cost 174ms for a two-hundred-line Kotlin block, and
the lazy list charged it again every time that block scrolled back into
composition -- six times in one bench run, with the scroll's draw phase at
1.29ms per frame. So it is warmed and cached where parses already are:
`highlight` is a plain function taking no colour from the theme, `warm`
fills `ParsedReplies.highlighted` from `fences(parse)` off the drawing
thread, and `fenceContent` extracts the code here rather than through the
library's composable, so the string warmed is the string drawn.
And the anchor restore asked for a span counted in events, which goes
negative when the anchor's row is the oldest half-row and was coerced to
one -- a request per delta, six hundred round trips walking one reply back
a word at a time with the spinner up. It asks for a page of rows now.
Clean pairs, fresh sessions each side, same gestures. Fence scroll
(transcript-bench.sh): draw phase 0.74ms per frame before highlighting
existed, 0.77ms after, no lexing in the window either side. Streaming
forty linked items (stream-bench.sh): 2412ms of reparsing before, 674ms
after; mean 5.0ms to 1.4ms, worst 8.9ms to 7.9ms. Bullet glyphs, fence
colours, the image links and the reference link checked on the emulator;
lint clean on AGP 9.4.0.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Items 1-5 of TRANSCRIPT_RENDERING.md's list, plus the AGP 9.4.0 bump from 7.
MarkdownRoot provides the renderer's locals itself instead of calling its
Markdown() composable; fences and indented blocks go through CodeFence.kt,
which shares the tool-input highlighter and a fence-language alias table;
an image in a paragraph is a link carrying its alt text, so every paragraph
is now platform text; LiveParse freezes the finished items of the tail list
so a forty-item list streams as forty paragraphs would.
Measured before, on the emulator (report from transcript-bench.sh over the
200-line fence fixture): draw phase 0.72ms per frame, transcript 0.36ms.
stream-bench.sh (new) streaming forty linked bullets on the old build:
markdown reparsed while streaming 483, 3.9ms mean, 11.6ms worst; record:
one block worst 1.6ms. The after runs, the on-screen check of the glyphs
and lint are recorded as owed in the doc's "What is next".
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Uploads no longer sit whole in memory anywhere: the phone writes the
multipart body chunked as it reads the picked file, and the server writes
each chunk to a `.part` file under the session and renames it when whole.
The per-request cap is 4 GB and bounds disk, not memory.
A file attached to a session on another machine is copied there in the
same request: one ssh invocation takes the bytes on stdin into the
setup's `attachmentsDir` (new, optional, on the machine form and in the
config), else the session's cwd, else the login home, and answers with
`pwd -P`, which is recorded beside the file as `<name>.remote` and is the
path the driver tells the CLI. A failed copy fails the upload and says
why, so no message ever names a file that is not there. The host keeps
its copy so transcripts can reference and fetch it. Measured against the
Gentoo test guest: a 40 MB file shared from the phone arrived there byte
for byte. The tilde in that setting is the remote home, so it is not
expanded on the server the way other setup paths are.
TRANSCRIPT_RENDERING.md records the week of transcript work -- the
measurements behind each decision, the harness, what was rejected, and
what to do next -- so a new session can start from it.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
irisandClaude Opus 5