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Codeman/.changeset/fix-report-the-captured-pane-geometry.md
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Codeman maintainer c376534a50 fix(run,terminal): merge-time fixes for the Instance count stepper and capture geometry
#454: the behaviour the PR adds had no test, so a regression test drives
runGrok() at tabCount 3 and asserts three quick-start POSTs with sequential
w<n>-<case> names (verified to fail against master's session-ui.js). Each
caller now reads the count BEFORE its opening banner and announces it there,
the way runClaude() already did, so a launch no longer prints two headers and
a launch with another session already active still says how many are starting.
runClaude() calls the shared _readTabCount() instead of its own copy of the
1..20 clamp, and that helper optional-chains the element read, since hoisting
it above each caller's try block would otherwise let a missing #tabCount throw
where the launch-error path cannot report it.

#435: sizeMovedUnderLoad derived from data.source alone. `mux-visible` is not
sufficient: a failed display-message cursor query makes capturePaneBuffer skip
the snapshot repaint and return the raw capture, which the route still labels
mux-visible, so a size that moved during such a load bought a full forced
reload to repair a frame that was never positioned. It now tests
Number.isFinite(data.captureRows) like its two siblings.

Plus the invariants and CLAUDE.md lines promised on #435: a visible capture
reports its geometry and omits it when nothing was positioned, the comparison
runs on mux-visible only, and the replay is capped at one attempt and latches
per session when it cannot converge.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-19 12:18:39 +02:00

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"aicodeman": patch
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fix(terminal): replay a pane capture at the geometry it was taken at
Opening a session could draw a frame built for a pane bigger than your terminal. A
taller pane wrote its overflow rows onto the last line and lost the rows underneath
(against a 50-row pane, a 30-row terminal rendered 28 of a 45-line command and drew
the survivors twice), and a wider one wrapped every row and scrolled the whole frame
up by one. The terminal response now reports the geometry the capture was really
taken at, so the browser can see the mismatch and replay once at the size that stuck.
A pane that cannot be sized to fit is diagnosed once per session instead of on every
tab switch.