Answers review of revision 10. Still framing only; no implementation.
**"CONSUME BEFORE `apply_terminal_gesture`" WAS NOT EARLY ENOUGH.**
`activates` is `!matches!(kind, Move)` for a terminal panel
(`src/editor.rs:2695`), which INCLUDES the wheel, and focus plus
`active_frontend` are written at `:2699` --- ahead of any replay
decision. A consume check below that block leaves the wheel CHANGING
FOCUS while scrolling nothing and claiming no controller: exactly the
half-state AC48's activate-then-claim rule exists to prevent. The panel
steals focus and does not move.
A terminal-chrome wheel is therefore not a terminal gesture at all, and
the dispatcher must treat it that way. The order is now stated:
1. authenticate and validate (the existing ladder)
2. resolve the side window and its buffer kind
3. terminal + chrome wheel -> CONSUME IMMEDIATELY, before
`focus_window`, `active_frontend`, any controller claim, any
command-chain mutation, and the shared terminal path
4. otherwise, the existing activation and replay rules
Step 3 is implementable where it belongs: `is_terminal` is resolved
from `buffer_id` at `:2687`, before the `core` borrow and before the
activation block, so the kind is already in hand.
**The witness gains focus and controller assertions, and they are
load-bearing.** The document->terminal replacement row now asserts the
focused window and terminal controller identity are unchanged, on top
of no child bytes, no scrollback and no document movement. Two
mutations bite different halves:
- terminal branch calls `apply_terminal_gesture` -> the chrome
coordinate fails the reporting bounds check, falls into the local
branch, and the row catches the accidental local scrollback
- the consume check sits BELOW activation -> nothing scrolls, so
every movement assertion still passes and ONLY the focus and
controller assertions catch it
That second mutation is the reason the new assertions exist. Without
them the row stays green against an implementation that steals focus on
every chrome wheel over a terminal, because the half-state is invisible
to any assertion about movement --- nothing moves either way.
Gates: all nine green under `env -u TMPDIR`, log 20260814T143558Z.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016bqGA6s9tTUFzYpbeW3tai
Levi Neuwirth
112fcf593f