implement-tui-scroll — Workgraph live mirror

Metadata

Status	done
Assigned	`agent-1159`
Agent identity	`f51439356729d112a6c404803d88015d5b44832c6c584c62b96732b63c2b0c7e`
Model	`claude:sonnet`
Created	2026-04-29T17:25:20.070569429+00:00
Started	2026-04-29T17:40:25.825694466+00:00
Completed	2026-04-29T18:04:21.852306385+00:00
Tags	`priority-high,fix,tui,ux,input`, `eval-scheduled`
Eval score	0.85
└ blocking impact	0.90
└ completeness	0.90
└ coordination overhead	0.88
└ correctness	0.88
└ downstream usability	0.82
└ efficiency	0.77
└ intent fidelity	0.86
└ style adherence	0.87

Description

Implement the scroll mode designed in research-tui-scroll. Read that task's log via wg show research-tui-scroll for the chosen toggle key, mode semantics, status bar text, and file pointers.

Validation

Failing tests written first
Toggle key enters scroll mode; status bar updates
In scroll mode: PgUp/PgDn, arrows, Home/End all scroll the active pane's scrollback as designed
Esc/q exits back to passthrough mode; status bar reverts
Inner PTY app (codex/claude/nex) does NOT see the toggle key OR the in-mode keys — they're consumed by scroll mode
Mouse wheel + touch scroll continue to work alongside the new keyboard mode
Live smoke: open codex chat with multi-screen scrollback, enter scroll mode, scroll up/down with PgUp/Down + arrows, exit, confirm cursor / state restored, codex unaffected. Same for claude chat. Same for nex chat.
cargo build + cargo test pass
Permanent smoke scenario added with this task id in owners
cargo install --path . was run before claiming done

## Description
Implement the scroll mode designed in research-tui-scroll. Read that task's log via `wg show research-tui-scroll` for the chosen toggle key, mode semantics, status bar text, and file pointers.

## Validation
- [ ] Failing tests written first
- [ ] Toggle key enters scroll mode; status bar updates
- [ ] In scroll mode: PgUp/PgDn, arrows, Home/End all scroll the active pane's scrollback as designed
- [ ] Esc/q exits back to passthrough mode; status bar reverts
- [ ] Inner PTY app (codex/claude/nex) does NOT see the toggle key OR the in-mode keys — they're consumed by scroll mode
- [ ] Mouse wheel + touch scroll continue to work alongside the new keyboard mode
- [ ] Live smoke: open codex chat with multi-screen scrollback, enter scroll mode, scroll up/down with PgUp/Down + arrows, exit, confirm cursor / state restored, codex unaffected. Same for claude chat. Same for nex chat.
- [ ] cargo build + cargo test pass
- [ ] Permanent smoke scenario added with this task id in owners
- [ ] cargo install --path . was run before claiming done

Depends on

Required by

(none)

Log

2026-04-29T17:25:20.053862799+00:00 Task paused
2026-04-29T17:25:41.817938986+00:00 Task published
2026-04-29T17:25:59.325642086+00:00 Lightweight assignment: agent=Careful Programmer (f5143935), exec_mode=full, context_scope=task, reason=Careful Programmer with proven TUI expertise (322 tasks, 0.77 score) is ideal for this correctness-critical scroll mode implementation requiring test-first development and live verification across multiple apps.
2026-04-29T17:40:25.825697532+00:00 Spawned by coordinator --executor claude --model sonnet
2026-04-29T17:40:34.230119492+00:00 Starting implementation of TUI scroll mode (Ctrl+] toggle)
2026-04-29T17:57:50.239208596+00:00 Build + tests pass (10/10 scroll mode tests pass, pre-existing test_global_config_path failure unrelated). Installing binary...
2026-04-29T18:03:47.246193625+00:00 Committed f458616b8 — pushed. Running smoke gate before wg done.
2026-04-29T18:04:21.852310453+00:00 Task pending eval (agent reported done; awaiting `.evaluate-*` to score)
2026-04-29T18:06:14.606593098+00:00 PendingEval → Done (evaluator passed; downstream unblocks)