Two independent bugs caused the slash-command autocomplete to render
`/goal` as `/goa` (and `/gquota` as `/gquot` for that matter) in the TUI:
1. `tui_gateway/server.py` was forwarding `c.display` from
prompt_toolkit's `Completion` straight into the JSON-RPC payload.
prompt_toolkit normalizes `display=` into `FormattedText` (a `list`
subclass), so the wire format became `[["", "/goal"]]` instead of
the `string` that `CompletionItem.display` in the TUI declares.
`meta` already went through `to_plain_text` — `display` did not.
2. The dropdown row in `appOverlays.tsx` used `flexDirection="row"`
with the display `<Text>` and the (very long) meta `<Text>` as
siblings. When the meta overflows the row width, Ink/Yoga shrinks
the *first* column by one cell, lopping the trailing character off
the command name. `/goal` triggers it reliably because its meta
string is the longest of any built-in command (description +
embedded `[text | pause | resume | clear | status]` usage hint).
Wrapping the display column in `<Box flexShrink={0}>` keeps it at
its natural width and lets the meta wrap or truncate instead.
* fix(tui): refresh virtual transcript on viewport resize
Notify scroll subscribers when ScrollBox viewport bounds change and key virtual-history updates on viewport height so resize/keyboard changes remount the tail rows instead of leaving stale spacers visible.
* test(tui): isolate viewport-height remount regression
Keep the resize delta below the virtual history scroll quantum so the regression test specifically depends on viewport height entering the snapshot key.
* test(tui): clarify virtual history resize snapshot
Update the resize regression and comments so the test specifically guards viewport-height changes in the virtual-history snapshot key.
* docs(tui): clarify scrollbox subscription signals
Document that ScrollBox subscribers are notified for renderer-computed viewport and content bound changes, not only imperative scrolls.
* fix(tui): recompute virtual tail after width resize
Avoid preserving a frozen virtual transcript range when wrapped rows shrink enough that the old tail window no longer covers the viewport.
* fix(tui): preserve transcript tail across resizes
Wraps + heights are column-dependent, so a width change must remeasure
every row and the renderer must repaint the full viewport.
- Key virtualRows on cols so React remounts wrapped rows on resize.
- Snap back to bottom after sticky-mode resize once React rerenders.
- Reserve a scrollbar + gap column in transcriptBodyWidth (non-termux).
- Full repaint on any viewport height change (was: shrink-only).
- ScrollBox scrollHeight uses deepest child bottom so sticky-bottom
math can reach the real final rendered row after reflow.
- DECSTBM fast-path now requires full container rect match.
* feat(tui): responsive banner tiers
Terminals can't scale glyphs, so the banner now picks a layout per
column width instead of always rendering the full 101-col logo:
- Wide (>= logo width): full ASCII logo + tagline.
- Mid (>= 58 cols): centered rule banner that expands with viewport.
- Narrow (>= 34 cols): brand line + tagline, both width-aware.
- < 34 cols: hidden.
SessionPanel surfaces model/cwd/sid inline when the hero column is
hidden, so narrow layouts don't lose that info. Logo width constants
derive from the art itself.
* fix(tui): re-check sticky inside resize debounce + document remount
Addresses Copilot review on PR #31077:
- onResize now re-checks isSticky() inside the 100ms timer so manual
scrolls during the debounce window don't get snapped back to tail.
- Comment on the virtualRows cols-keying calls out the deliberate
trade-off: per-row local state (e.g. systemOpen) resets on resize so
yoga can remeasure off live geometry. The hook's scale-by-ratio path
is too approximate for mixed markdown widths.
Bug 1: /voice off in TUI mode did not clear HERMES_VOICE_TTS,
leaving TTS stuck ON with no way to disable it (the voice.toggle
tts handler requires voice mode to be ON).
Bug 2: TUI status bar only showed 'voice on/off' without any
indication of whether TTS speech output is active, because the
frontend never tracked voiceTts state.
- tui_gateway/server.py: clear HERMES_VOICE_TTS when voice is turned off
- ui-tui/src/app/useMainApp.ts: add voiceTts state, thread setVoiceTts
through voice contexts, display [tts] in status bar
- ui-tui/src/app/slash/commands/session.ts: sync tts from voice.toggle response
- ui-tui/src/app/interfaces.ts: add setVoiceTts to all voice context interfaces
Addresses Copilot review on PR #31077:
- onResize now re-checks isSticky() inside the 100ms timer so manual
scrolls during the debounce window don't get snapped back to tail.
- Comment on the virtualRows cols-keying calls out the deliberate
trade-off: per-row local state (e.g. systemOpen) resets on resize so
yoga can remeasure off live geometry. The hook's scale-by-ratio path
is too approximate for mixed markdown widths.
Terminals can't scale glyphs, so the banner now picks a layout per
column width instead of always rendering the full 101-col logo:
- Wide (>= logo width): full ASCII logo + tagline.
- Mid (>= 58 cols): centered rule banner that expands with viewport.
- Narrow (>= 34 cols): brand line + tagline, both width-aware.
- < 34 cols: hidden.
SessionPanel surfaces model/cwd/sid inline when the hero column is
hidden, so narrow layouts don't lose that info. Logo width constants
derive from the art itself.
Wraps + heights are column-dependent, so a width change must remeasure
every row and the renderer must repaint the full viewport.
- Key virtualRows on cols so React remounts wrapped rows on resize.
- Snap back to bottom after sticky-mode resize once React rerenders.
- Reserve a scrollbar + gap column in transcriptBodyWidth (non-termux).
- Full repaint on any viewport height change (was: shrink-only).
- ScrollBox scrollHeight uses deepest child bottom so sticky-bottom
math can reach the real final rendered row after reflow.
- DECSTBM fast-path now requires full container rect match.
Keep the resize delta below the virtual history scroll quantum so the regression test specifically depends on viewport height entering the snapshot key.
Notify scroll subscribers when ScrollBox viewport bounds change and key virtual-history updates on viewport height so resize/keyboard changes remount the tail rows instead of leaving stale spacers visible.
* fix(tui): ignore late thinking deltas after completion
Prevent stale reasoning events from repainting the TUI status after a turn has already completed and the UI is idle.
* test(tui): restore timers after thinking delta assertion
Keep fake timer cleanup in a finally block so assertion failures cannot leak timer mode into later tests.
* fix(tui): log parent gateway lifecycle exits
Add parent-side breadcrumbs for TUI gateway shutdown and transport exits so future backend EOF/SIGTERM reports identify the parent action that caused them.
* chore(tui): retrigger lifecycle logging checks
Retry transient GitHub checkout failures on the lifecycle logging PR.
* fix(tui): commit composer input bursts immediately
Salvage the WSL/terminal multi-character input burst fix with focused regression coverage so delayed pseudo-paste buffers cannot reorder later edits.
* fix(tui): keep newline input bursts on paste path
Preserve paste handling for multi-character chunks with newlines while keeping repeated printable key bursts on the immediate composer path.
* refactor(tui): share composer frame batch interval
Use one frame-sized batching constant for parent updates, local renders, and input burst flushes.
* fix(tui): surface verbose tool details
Emit redacted structured verbose args/results to the TUI so /verbose verbose can show full tool detail without reopening stdout, and fail closed if redaction is unavailable.
Salvages #29011.
Co-authored-by: helix4u <4317663+helix4u@users.noreply.github.com>
* fix(tui): address verbose detail review
Label verbose tool failures as errors, cover forced verbose reasoning, and avoid new diff type warnings from the redaction regression tests.
* fix(tui): bound verbose tool payloads
Cap verbose tool detail text before emitting JSON-RPC events and preserve verbose results on inline diff completions.
* fix(tui): align termux argv test with gc flag
Update the stale TUI launch expectation so the Termux freshness path matches the current direct Node argv.
---------
Co-authored-by: helix4u <4317663+helix4u@users.noreply.github.com>
Salvaged from #28942 (adybag14-cyber). Only the Ink TUI half is taken
here — the bundled "termux compatibility note" added to skills_tool.py
in the original PR did not address the actual user-reported bug
(skill_matches_platform() filtering Linux skills out on Termux) and
also regressed the EXCLUDED_SKILL_DIRS set used to prune nested
.venv/site-packages skills.
Changes:
- ui-tui/src/lib/prompt.ts: single-cell ASCII '>' marker in Termux mode
to avoid ambiguous-width glyph artifacts while typing.
- ui-tui/src/components/appLayout.tsx: suppress profile prefix on
narrow Termux panes (>=90 cols still shows it).
- ui-tui/src/lib/inputMetrics.ts + components/messageLine.tsx +
lib/virtualHeights.ts: termux-aware transcript body width — drop
the desktop 20-col floor on narrow mobile layouts, align virtual
heights with actual rendered width.
- ui-tui/src/components/textInput.tsx: disable fast-echo bypass by
default in Termux to avoid ghosting at soft-wrap boundaries.
HERMES_TUI_TERMUX_FAST_ECHO=1 opts back in.
Tests: ui-tui/src/__tests__/{prompt,termuxComposerLayout,textInputFastEcho}.test.ts
(12 PR-added tests pass; 3 pre-existing wrapAnsi-bundling failures on
main are unrelated.)
The real skill-listing fix on Termux ('android' platform matching
Linux skills) ships as a follow-up commit on this branch.
* feat(tui): make display.mouse_tracking pick which DEC modes to enable
Previously the boolean flag was all-or-nothing across modes 1000+1002+1003+1006.
Inside tmux, mode 1003 (any-motion) makes every mouse cross of the prompt row
fire a clipboard probe that surfaces as "No image in clipboard" — sometimes
dozens in a row. Disabling tracking entirely killed scroll-wheel scrolling too,
since tmux's own scrollback is preempted by the alt-screen TUI.
`display.mouse_tracking` (and `/mouse <preset>`) now accepts `off | wheel |
buttons | all` in addition to the legacy booleans. `wheel` is 1000+1006:
scroll wheel + click only, no drag, no hover — the tmux-friendly subset.
`buttons` adds 1002 for drag-to-select. `all` (= legacy `true`) keeps the
hover-driven UI (scrollbar paginate-on-hover, link mouseenter, etc.).
* fix(tui): repaint + sync mouse mode when display.mouse_tracking changes
Two interacting bugs left the TUI blank when `display.mouse_tracking`
switched at runtime (config edit, /mouse <preset>):
1. AlternateScreen's effect re-runs on every `mouseTracking` change,
tearing down and re-entering the alt screen. After re-entry, ink's
frame buffers are reset by `resetFramesForAltScreen()` but nothing
schedules the follow-up render — the alt screen sits blank until
some other state change happens to trigger one. Add a
`scheduleRender()` in `setAltScreenActive`'s active=true branch so
the freshly-entered alt screen gets a full repaint immediately.
2. `setAltScreenActive` early-returns when `active` hasn't changed,
which silently drops a `mouseTracking` change if the cleanup→setup
pair somehow leaves `altScreenActive` already true. Call
`setAltScreenMouseTracking` explicitly from the AlternateScreen
effect so the in-memory mode and terminal DECSET sequence stay in
sync regardless of how `setAltScreenActive` resolved (the call is a
no-op when the mode is unchanged).
* fix(tui): address copilot review #4341269705
- tui_gateway/server.py: drop the never-referenced _MOUSE_TRACKING_MODES
frozenset (comment #3284802434). _MOUSE_TRACKING_ALIASES already
centralizes the canonical preset set via its values; the separate
constant added no behavior.
- tests/test_tui_gateway_server.py: update the existing
test_config_mouse_uses_documented_key_with_legacy_fallback to assert
the new preset strings ('all'/'off' instead of 'on'/'off',
display.mouse_tracking persisted as 'all' instead of True) and add
test_config_mouse_accepts_preset_strings_and_aliases covering /mouse
set with wheel/click/unknown (comment #3284802453). The on/off legacy
config.set return shape was an implementation detail of the boolean
flag, not a stable API — the slash command, gateway help text, and
docs all advertise the preset values now.
- ui-tui/packages/hermes-ink/src/ink/ink.tsx: schedule a render at the
end of reenterAltScreen() (comment #3284802461). Mirrors the same fix
in setAltScreenActive() from ece0a2f4c — without it, SIGCONT/resize
self-heal/stdin-gap re-entry leaves the alt screen blank because
every caller returns early after invoking us.
* fix(tui): address copilot review #4341308478 round 2
- ui-tui/src/config/env.ts (comment #3284837577): the precedence
comment was misleading. Actual behavior on origin/main is
HERMES_TUI_MOUSE_TRACKING (explicit override) > Termux default >
HERMES_TUI_DISABLE_MOUSE legacy kill-switch. This is preserved from
main; the only change here was the wrong comment that claimed
DISABLE_MOUSE kept kill-switch semantics. Rewrote the comment block
to document the actual precedence ladder.
- tui_gateway/server.py /mouse set (comment #3284837607): replaced
'str(value or "").strip().lower()' with the explicit None idiom
already used for /indicator, so programmatic callers can pass 0 /
False and have them route through _MOUSE_TRACKING_ALIASES → 'off'
instead of collapsing to '' and triggering the toggle path.
- ui-tui/packages/hermes-ink/src/ink/components/AlternateScreen.tsx
(comment #3284837620): always prepend DISABLE_MOUSE_TRACKING before
enableMouseTrackingFor(...) on mount. Otherwise selecting
'wheel'/'buttons' from a state where DEC 1003 was already asserted
(crash, another app, debugger) would silently leave hover on. Also
unconditionally DISABLE on unmount so a crash mid-mount can't leak
DEC modes back to the host shell.
* chore(release): map nat@nthrow.io to @nthrow for #26681 salvage
* fix(tui): drop redundant setAltScreenMouseTracking in AlternateScreen
Copilot review #4341356637 (comment #3284880417). The explicit
setAltScreenMouseTracking(mouseTracking) after setAltScreenActive(true,
mouseTracking) was defensive paranoia added in the previous fix commit
that's not actually reachable in practice:
- React's cleanup always runs before the next setup, so on any prop
change (mouseTracking or writeRaw) the cleanup sets active=false
first. Setup then sees active was false and applies the new mode
via setAltScreenActive without early-returning.
- On the impossible 'active stayed true' path, the writeRaw above has
already sent DISABLE_MOUSE_TRACKING + enableMouseTrackingFor(newMode)
to the terminal, so the in-memory mode would lag but the visible
state is already correct.
Removing the redundant call means a single DEC sequence per mount.
If the 'active stayed true' path ever manifests in practice, the
right fix is in setAltScreenActive (track mode regardless of the
active early-return), not here.
* fix(tui): always DISABLE before enableMouseTrackingFor in ink.tsx
Copilot review #4341379994 (comments #3284900825, #3284900840,
#3284900852). Three remaining call sites in ink.tsx still re-enabled
mouse tracking without first sending DISABLE_MOUSE_TRACKING:
- handleResize alt-screen recovery (line ~577)
- reassertTerminalModes stdin-gap re-assertion (line ~1351)
- reenterAltScreen SIGCONT/resize/stdin-gap self-heal (line ~1408)
For 'wheel'/'buttons' presets, omitting DISABLE leaves any externally-
asserted DEC 1003 (other apps, prior crash, tmux state) still active
and the hover-free preset silently has hover on. DISABLE_MOUSE_TRACKING
is idempotent and safe to send unconditionally — it resets all four
modes. Matches the pattern already in setAltScreenMouseTracking and
the AlternateScreen mount path.
* fix(tui): always DISABLE before enableMouseTrackingFor in exitAlternateScreen
Copilot review #4341452823 (comment #3284959762). exitAlternateScreen()
was the last call site in ink.tsx still re-enabling mouse tracking
without DISABLE first. Editors (vim/nvim/less) and tmux can leave
DEC 1003 hover asserted across the handoff back; without DISABLE,
'wheel'/'buttons' presets silently kept hover on after the editor
quit. Now all five enableMouseTrackingFor() call sites in ink.tsx
prepend DISABLE_MOUSE_TRACKING — handleResize, reassertTerminalModes,
reenterAltScreen, setAltScreenMouseTracking, exitAlternateScreen.
* fix(tui): add defensive default to enableMouseTrackingFor switch
Copilot review #4341485231 (comment #3284979323). TS exhaustive switch
returns string per the type system, but a JS caller / corrupted config
/ hot-reload-in-dev could reach the function with an unknown value at
runtime. Without a default, that path returns undefined which then
concatenates as the literal string 'undefined' into the terminal byte
stream — visibly garbling output. Treat unknown as 'off' (no DEC
sequences) so the worst case is silent input loss rather than a
wrecked screen.
---------
Co-authored-by: Nat Thrower <nat@nthrow.io>
`probeLinuxCopy` and `copyNative` in `osc.ts` await `execFileNoThrow`
for wl-copy / xclip / xsel. Those tools double-fork a daemon that
holds the system selection live, and the daemon inherits stdio pipes
from `spawn(stdio: 'pipe')`. Node's 'close' event only fires when
stdio is fully closed → the daemon keeps the pipes open → 'close'
never fires → the await leaks past the timeout (kill(SIGTERM) on an
already-exited child is a no-op, daemon survives).
Result: `linuxCopy` cache stays `undefined` permanently, the actual
copy never runs, ctrl-c silently does nothing on wayland/x11.
Reproduced in isolation, confirmed across wl-copy and a
daemonization-shaped fixture.
Fix: add `resolveOnExit` option to `execFileNoThrow`. When set, the
promise settles on the immediate child's 'exit' event instead of
waiting for stdio drainage. Wired into both the probe and the actual
copy spawns for every clipboard tool (pbcopy, wl-copy, xclip, xsel,
clip).
Tests: 5 new vitest cases covering daemon-style child handling,
non-zero exit propagation, timeout behavior, and double-resolve
guard. The forever-hang case is committed as `it.skip` with
documentation so a reviewer can verify the bug by hand.
Remove the stale Babel compiler config and direct Babel dev dependencies from the TUI package.
Regenerate the npm lockfile and refresh the Nix fetchNpmDeps hash for the trimmed dependency graph.
`splitReasoning()` strips paired `<think>…</think>` blocks first, then runs
an unclosed-trailing regex to catch reasoning that hasn't yet streamed its
closer. That second regex was unanchored and greedy:
new RegExp(`<${tag}>([\\s\\S]*)$`, 'i')
So any literal `<think>` somewhere in prose — a model quoting the tag, a
code example, or a stream-mid-tag before the closer arrives — consumed
every paragraph after it to EOF. User-visible symptom: "TUI eats last
paragraph of output," both during streaming and on settled turns.
Real reasoning streams always lead the message (that's the only place an
unclosed opener can legitimately appear during streaming). Anchor the
regex to `^\s*` so mid-prose mentions of the tag are preserved.
Empirical repro before the fix:
splitReasoning('final answer paragraph one.\n\n<think>internal note\n\nfinal answer paragraph two.')
→ text: 'final answer paragraph one.' ← paragraph two GONE
After:
→ text: 'final answer paragraph one.\n\n<think>internal note\n\nfinal answer paragraph two.'
Updated the existing trailing-unclosed test to lead with `<think>` (the
real-world shape) and added a regression test pinning the mid-text case.
ui-tui type-check clean, 808/808 vitest pass.
Add browser CDP launch candidates for Chrome, Chromium, Brave, and Edge while preserving Chrome-first selection. Retry candidate launch failures instead of giving up after the first executable.
Update /browser CLI and TUI messaging, docs, and tool descriptions from Chrome-only wording to Chromium-family browser support. Add regression coverage for Brave/Edge paths, Chrome-first precedence, fallback launches, and CDP endpoint probing.
Adds a Termux runtime detection helper and gates three TUI defaults on it:
- Skip the startup scrollback clear on Termux so users can review/copy
earlier output after reopening the app. Desktop keeps the existing
\x1b[2J\x1b[H\x1b[3J slate (AlternateScreen takes over there anyway).
- Default INLINE_MODE on under Termux: primary-buffer rendering makes
long-thread review and copy/paste much less fragile when users
background/foreground the app. Override with HERMES_TUI_INLINE=0/1.
- Default mouse tracking off under Termux so touch selection isn't
intercepted by terminal mouse protocols. Explicit override via
HERMES_TUI_MOUSE_TRACKING=0/1; legacy HERMES_TUI_DISABLE_MOUSE still
works on desktop.
Detection is purely env-based (TERMUX_VERSION or PREFIX path) with an
explicit opt-out HERMES_TUI_TERMUX_MODE=0 for debugging. Non-Termux
platforms keep every existing default.
Co-authored-by: adybag14-cyber <252811164+adybag14-cyber@users.noreply.github.com>
* feat: add /update slash command to CLI and TUI
* test(cli): add Python tests for /update slash command
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(cli): address Copilot review for /update slash command
Route classic CLI /update through prompt_toolkit modal confirmation and
defer relaunch to the main-thread cleanup path after app.exit(). Tighten
Y/n semantics, add Python wrapper and catalog coverage tests, and assert
/update stays visible in the TUI command catalog.
Co-authored-by: Cursor <cursoragent@cursor.com>
* fix(cli): address review feedback on /update command
- Replace raw input() with _prompt_text_input_modal in _handle_update_command
to avoid EOF/hang/keystroke-leak races with prompt_toolkit's stdin ownership
- Fix confirmation logic: only proceed on recognized affirmative aliases
(y/yes/1/ok); cancel on everything else including empty string, typos,
and unrecognized input — matches all other [Y/n] prompts in the codebase
- Route relaunch through main-thread shutdown path: set _pending_relaunch
and return False from process_command so process_loop triggers app.exit();
run() then calls relaunch() after prompt_toolkit has restored terminal modes
and after cleanup — safe on both POSIX (execvp) and Windows (subprocess+exit)
- Fix misleading docstring in test_update_command.py: the Vitest only covers
the TypeScript slash handler that emits code 42, not the Python wrapper
branch that acts on it
- Rewrite tests to use SimpleNamespace pattern (like test_destructive_slash_confirm)
so _prompt_text_input_modal can be stubbed directly
- Add Python test for _launch_tui exit-code-42 → relaunch branch in main.py
Agent-Logs-Url: https://github.com/NousResearch/hermes-agent/sessions/f6da68cf-e7b1-4b7a-aed6-3d4b0f523bdb
Co-authored-by: austinpickett <260188+austinpickett@users.noreply.github.com>
* fix(cli): polish test fixtures for /update command
- Remove unused _prompt_text_input from SimpleNamespace stub
- Use pytest.fail sentinel in managed-install guard test to catch unexpected modal invocations
Agent-Logs-Url: https://github.com/NousResearch/hermes-agent/sessions/f6da68cf-e7b1-4b7a-aed6-3d4b0f523bdb
Co-authored-by: austinpickett <260188+austinpickett@users.noreply.github.com>
* chore: re-trigger CI after Copilot review fixes
Co-authored-by: Cursor <cursoragent@cursor.com>
---------
Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: austinpickett <260188+austinpickett@users.noreply.github.com>
Copilot caught an important runtime parity gap on PR #27489: the fix
imported the npm `wrap-ansi` package directly, but Ink's `<Text
wrap="wrap">` uses a runtime-selecting shim
(`ui-tui/packages/hermes-ink/src/ink/wrapAnsi.ts`) that prefers
`Bun.wrapAnsi` when running under Bun and falls back to the npm package
elsewhere. So under Bun, Ink would render via `Bun.wrapAnsi` while
`cursorLayout` would compute breaks via the npm package — any
disagreement reintroduces the exact cursor-drift symptom the PR is
meant to eliminate.
Fix:
- Export `wrapAnsi` from `@hermes/ink` (`packages/hermes-ink/src/entry-exports.ts`
and `packages/hermes-ink/index.d.ts`) so the shim is the public surface.
- Switch `ui-tui/src/lib/inputMetrics.ts` from `import wrapAnsi from
'wrap-ansi'` to `import { wrapAnsi } from '@hermes/ink'`. Both
renderer (Ink) and cursor layout now traverse the same shim, so
they share the runtime-selected implementation by construction.
- Same swap in `textInputWrap.test.ts` and `cursorDriftRegression.test.ts`
— tests now assert parity through the shim, which means under Bun
they actually exercise Bun's implementation instead of asserting a
tautology against the npm package.
- Drop the direct `"wrap-ansi": "^9.0.0"` from `ui-tui/package.json`.
`@hermes/ink` (which IS a declared dep) pulls wrap-ansi in
transitively — that's not a phantom dep because the import path
goes through `@hermes/ink`'s public exports, not through a
hoisting accident.
Verified: 791/791 vitest tests pass. `@hermes/ink` rebuilt
(`dist/entry-exports.js` includes `wrapAnsi` export). TUI bundle
rebuilt clean.
Three small follow-ups from the Copilot review on #27489:
1. Declare `wrap-ansi` as a direct dependency of `ui-tui`. It was a
phantom dep that resolved via npm hoisting from `@hermes/ink`'s
transitive graph — fine on hoisted installs, but breaks under pnpm
or `npm install --no-install-strategy=hoisted` style isolated
installs. Now listed as `"wrap-ansi": "^9.0.0"` matching the
@hermes/ink version. Lockfile regenerated.
2. Implement the defensive resync the comment promised. Previously the
comment claimed the loop would "fall back to advancing by one to
stay in lockstep" on wrap-ansi desync, but the code unconditionally
advanced `originalIdx` with no actual check — so any future
wrap-ansi option change or styled-input caller could silently slide
`originalIdx` past the end of `value` and emit garbage line ranges.
Now actually compares `value[originalIdx] === ch`, re-syncs via
`indexOf` on mismatch, and bails out (returning whatever was built
so far) if the desync is unrecoverable. Production paths still hit
the equality fast-path on every char.
3. Drop the `visualLines` wrapper. It was a one-line indirection over
`visualLinesFromWrappedOutput`. Renamed the implementation to
`visualLines` and removed the wrapper — same name, no extra layer.
No behavior change beyond the defensive realign; all 791 vitest tests
still pass.
The composer's `cursorLayout` (in `ui-tui/src/lib/inputMetrics.ts`) used a
hand-rolled word-wrap algorithm to decide where `useDeclaredCursor`
should park the hardware cursor. But Ink's `<Text wrap="wrap">` renders
the same text via `wrap-ansi`. The two algorithms disagreed on common
real-world inputs — `"branch investigate"` at cols=20, `"hello world"`
at cols=8, exact-fill strings like `"abcdefgh"` at cols=8 — so the
hardware cursor parked several cells past where Ink actually rendered
the last character. Users saw a multi-cell blank gap between their
last-typed letter and the cursor block, especially on narrow terminals
(the Cursor IDE built-in terminal was the worst offender).
Three previous PRs (#26717, #25860, #22197) chased fast-echo
displayCursor/cursorDeclaration drift and in-band-vs-native cursor
heuristics. None of them touched the underlying wrap-algorithm
mismatch, which is why the bug kept resurfacing.
Fix: source cursorLayout's line breaks from wrap-ansi directly. Walk
its emitted string char-by-char, tracking original-string offsets, push
a VisualLine at each '\n'. Also drop the buggy `column >= w` overflow
rule in cursorLayout — that's what pushed exact-fill text onto a
phantom next row.
canFastBackspaceShape now detects the wrap boundary in BOTH coordinate
conventions (column === 0 OR column >= columns), since exact-fill now
reports as (0, columns) instead of the previous (1, 0). The physical
state is identical — the terminal auto-wraps at column N either way —
but the layout function reports the position more honestly.
Tests:
- ui-tui/src/__tests__/textInputWrap.test.ts: 3 tests that pinned the
BUGGY behavior were updated to assert wrap-ansi parity (the real
invariant). Added a typing-prefix invariant: cursorLayout must agree
with wrap-ansi at every character of a long input.
- ui-tui/src/__tests__/cursorDriftRegression.test.ts: new file. Walks
the user-reported bug message char-by-char at 7 widths and asserts
agreement with wrap-ansi at every prefix.
Verification:
- 791/791 vitest tests pass.
- 84/84 tui-gateway pytest tests pass via scripts/run_tests.sh.
- PTY repro (typing into a real `hermes --tui` PTY at cols=50/55/60):
cursor lands exactly 1 cell past the last typed char in every case
the bug previously drifted.
Consume multi-byte non-CSI ESC sequences during ANSI sanitization and handle UnicodeDecodeError for `hermes send --file` so review findings are resolved without regressions.
Strip incomplete CSI prefixes before rendering, remove carriage returns from sanitized output, and add regression tests to prevent escape-sequence recomposition across message boundaries.
Avoid Terminal.app paint corruption by disabling fast-echo in that terminal, sanitizing non-SGR control sequences before ANSI rendering, and defaulting Apple Terminal back to the safer 256-color path unless truecolor is explicitly requested.
* fix(tui): keep Ink displayCursor in sync with fast-echo writes so cursor stops drifting
TextInput's fast-echo bypass writes characters directly to stdout to
avoid waiting on a React re-render for each keystroke. The hardware
cursor advances by text.length cells, but Ink's cached `displayCursor`
(the basis for the next frame's relative cursor-move preamble in
log-update) stayed unchanged. When ANY unrelated component re-rendered
between the fast-echo write and the deferred composer setCur/setParent
flush — status bar timer, streaming reasoning, etc. — the next frame's
preamble emitted a relative cursor move from a stale parked position
and the hardware cursor parked N cells offset from the actual caret.
Visible symptom: extra whitespace between the just-typed character and
the cursor block, intermittent, worse on long sessions during streaming.
Alt-screen was immune because frames begin with absolute CSI H.
This adds a small API in @hermes/ink:
- `Ink.noteExternalCursorAdvance(dx, dy?)` — bumps displayCursor if
set, otherwise seeds from frontFrame.cursor so the next preamble's
relative move correctly cancels the external advance. No-op on
alt-screen.
- `CursorAdvanceContext` + `useCursorAdvance()` hook to expose it.
TextInput then calls `noteCursorAdvance(text.length)` after the
fast-echo `stdout.write(text)` append, and `noteCursorAdvance(-1)`
after the fast-backspace `\b \b` sequence.
Tests: 4 new vitest cases pin the API contract (bumps when set, seeds
from frontFrame.cursor when null, alt-screen no-op, zero-delta no-op).
All 751 ui-tui tests pass; tests/test_tui_gateway_server.py (177) pass.
* fix(tui): also advance cursorDeclaration so fast-echo survives deferred React state
Copilot review on PR #26717 flagged a gap in the original fix:
TextInput's fast-echo path defers the React `cur` state update by
16ms (perf optimization that batches re-renders during heavy typing).
Inside that window, `useDeclaredCursor` still publishes a target
computed from the PRE-keystroke `cur` — `cursorLayout(display, cur,
columns)`. Advancing only `displayCursor` would let any unrelated
re-render in that 16ms window run onRender's cursor-park branch with
the stale declaration and visually undo the fast-echo's advance.
The fix is symmetric: `noteExternalCursorAdvance` now bumps BOTH
`displayCursor` (the log-update relative-move basis) AND, if non-null,
`cursorDeclaration.relativeX/Y` (the target the cursor parks at after
every frame). When React finally flushes `setCur`, `useDeclaredCursor`
publishes a fresh declaration that supersedes our bumped one — exactly
what we want.
Adds two new vitest cases covering both halves:
- active declaration advances in lock-step with displayCursor
- null declaration stays null (no spurious bump)
All 753 ui-tui tests pass; tests/test_tui_gateway_server.py (177) pass.
Closes review threads:
PRRT_kwDOPRF1G86ChKtD (textInput.tsx:1016 fast-echo append)
PRRT_kwDOPRF1G86ChKtF (textInput.tsx:924 fast-backspace)
PRRT_kwDOPRF1G86ChKtG (ink-cursor-advance.test.ts:57 missing coverage)
* fix(tui): make fast-echo survive TextInput rerenders + alt-screen (Copilot round 2)
Round 2 of PR #26717 review. Three real holes Copilot flagged after the
initial cursorDeclaration bump:
1. alt-screen early-return skipped BOTH halves of the notifier. But the
default TUI wraps the composer in <AlternateScreen> — that IS the
production path. CSI H resets log-update's relative-move basis, but
the alt-screen park branch uses absolute CUP =
`rect.x + decl.relativeX`, so a stale declaration there still parks
the cursor at the pre-keystroke caret. Fix: skip ONLY the
displayCursor half on alt-screen; still bump cursorDeclaration.
2. TextInput's own rerender could clobber the Ink-level bump. The fast-
echo path defers setCur by 16ms; if a parent state change rerenders
TextInput in that window, the layout effect inside useDeclaredCursor
reads the stale React `cur` state and re-publishes a declaration at
the OLD column. Fix:
`cursorLayout(display, curRef.current, columns)` — read the always-
up-to-date ref, not the deferred state. useMemo dropped (compute is
cheap, single-line wrap-text in the common case).
3. Tests bypassed the production wiring. Added two structural tests:
- `still advances cursorDeclaration on alt-screen` in the Ink-level
suite, asserting displayCursor stays put but the declaration
advances by the delta.
- `textInputCursorSourceOfTruth.test.ts` pins three structural
invariants: layout reads curRef.current, never the bare `cur`
state, and the fast-echo stdout.write calls remain paired with
noteCursorAdvance(±N). Source-grep invariants > flaky Ink mount
tests for this kind of regression.
757/757 ui-tui tests pass (+3 over round 1). type-check clean. lint
introduces zero new errors on touched files. tests/test_tui_gateway_server.py
(177) pass.
Closes review threads:
PRRT_kwDOPRF1G86ChOG2 (ink.tsx alt-screen guard)
PRRT_kwDOPRF1G86ChOG9 (textInput.tsx fast-backspace rerender window)
PRRT_kwDOPRF1G86ChOHC (textInput.tsx fast-append rerender window)
PRRT_kwDOPRF1G86ChOHJ (alt-screen test asserts wrong invariant)
PRRT_kwDOPRF1G86ChOHP (missing integration-style coverage)
* fix(tui): reject fast-backspace at soft-wrap boundary (Copilot round 3)
PR #26717 round 3. Copilot caught two real things:
1. `\b \b` cannot move the terminal cursor onto the previous visual
row across a soft-wrap boundary. When the caret sits at visual
column 0 of a wrapped row (e.g. value 'hello ' at width 6 →
cursorLayout produces (line 1, col 0)), backspace would leave the
physical cursor in place while the logical caret moves up to the
end of the previous visual line. `noteCursorAdvance(-1)` would then
feed Ink a wrong delta. Fix: `canFastBackspaceShape` now takes the
composer width and rejects when `cursorLayout(value, cursor, columns).column === 0`.
The fast path falls through to the normal Ink render, which
correctly lays out the new caret position. The PR-description
inconsistency about alt-screen is fixed in a separate gh pr edit.
Adds 4 new tests in textInputFastEcho.test.ts pinning the rejection at
exact-multiple wrap boundaries plus a positive control inside a
wrapped line and a back-compat case where `columns` is omitted.
761/761 ui-tui tests pass. type-check / lint clean. 177/177 Python
tests/test_tui_gateway_server.py pass.
Closes review threads:
PRRT_kwDOPRF1G86ChxE5 (textInput.tsx:933 wrap-boundary regression)
* fix(tui): polish doc + tests after Copilot round 4
Three polish points Copilot raised:
1. canFastBackspaceShape doc comment overstated the legacy contract —
said it conservatively rejects potential wrap boundaries when
columns is omitted, but the implementation actually skips the
wrap-boundary check entirely. Reworded to make the legacy behavior
explicit and warn callers not to rely on protection they don't get.
2. ink-cursor-advance.test.ts rationale comment for the
'advances cursorDeclaration in lock-step' case still referenced
the pre-fix `cursorLayout(display, cur, columns)` expression. Now
accurately describes the current source of truth — `curRef.current`
in textInput.tsx — and explains the window the bump is bridging.
3. Removed the three `__get*ForTest` accessors from Ink. The test
file already cast the instance to inspect private state in the
couple of tests that needed declaration mutation; the rest now use
a small `peek(ink)` helper that does the same cast for reads. No
test-only API surface ships in production.
761/761 ui-tui tests pass. type-check clean. lint introduces zero new
errors on touched files. 177/177 tests/test_tui_gateway_server.py pass.
Closes review threads:
PRRT_kwDOPRF1G86Ch23W (canFastBackspaceShape doc accuracy)
PRRT_kwDOPRF1G86Ch23f (stale test rationale)
PRRT_kwDOPRF1G86Ch23p (test-only API surface in production)
* fix(tui): tighten doc + add dy test coverage (Copilot round 5)
Two polish points from round 5:
1. canFastBackspaceShape doc had two paragraphs that conflicted —
the main 'Additionally rejects when the physical cursor sits at
visual column 0' was stated unconditionally, then the columns-param
paragraph qualified that it only happens when columns is passed.
Reworked into clear 'When supplied / When omitted' branches with a
concrete example value ('hello ' returns true without columns even
though it would be unsafe at width 6). No more inconsistency.
2. Added a test asserting cursorDeclaration.relativeY advances when dy
is non-zero. Existing tests exercised dy on displayCursor only.
Newlines in fast-echoed text don't currently hit the bypass
(canFastAppendShape rejects '\n'), but dy is part of the public
notifier contract and must propagate symmetrically with dx so
future callers get a fully-implemented contract.
762/762 ui-tui tests pass (+1). type-check / lint / build clean.
Closes review threads:
PRRT_kwDOPRF1G86Ch6Sz (doc inconsistency)
PRRT_kwDOPRF1G86Ch6TE (missing dy coverage on declaration)
* fix(tui): doc polish (Copilot round 6)
Four small but valid points:
1. textInputCursorSourceOfTruth.test.ts used bare 'fs'/'path'/'url'
imports; the rest of ui-tui consistently uses the 'node:' prefix
(see src/__tests__/useSessionLifecycle.test.ts, src/lib/editor.test.ts).
Switched to node:fs / node:path / node:url to match convention.
2. CursorAdvanceContext.ts type-level doc described only displayCursor.
The notifier intentionally also mutates the active cursorDeclaration
and that's the only part that matters on alt-screen. Reworked the
doc into a two-part 'updates both' summary with the alt-screen
asymmetry called out explicitly.
3. use-cursor-advance.ts hook doc had the same problem. Same fix —
document both pieces of state, both screen modes.
4. App.tsx onCursorAdvance prop comment was incomplete. Same fix —
describe both state updates and the screen-mode asymmetry.
No behavior change. 762/762 ui-tui tests pass. type-check / lint /
build clean.
Closes review threads (auto-resolved on PR but valid critiques):
PRRT_kwDOPRF1G86Ch926 (node: prefix on built-in imports)
PRRT_kwDOPRF1G86Ch92_ (use-cursor-advance.ts doc)
PRRT_kwDOPRF1G86Ch93H (CursorAdvanceContext.ts type doc)
PRRT_kwDOPRF1G86Ch93J (App.tsx prop comment)
When an approval / clarify / confirm overlay was active, the global input
handler in useInputHandlers returned for every key that wasn't Ctrl+C, which
silently disabled transcript scrolling. On long threads the context the
prompt was asking about often lived above the visible viewport, and being
unable to scroll while answering felt like the prompt had locked the UI.
ApprovalPrompt also had no Esc handler at all, so the one obvious 'abort'
key did nothing during a permission prompt and the user had to memorize
Ctrl+C or hunt for the deny number.
Fixes:
- Extract shouldFallThroughForScroll(key) (pure, exported) covering wheel
scrolls, PageUp/PageDown, and Shift+ArrowUp/Down. When a prompt overlay
is up and the pressed key is a scroll input, skip the early return so it
reaches the existing wheel/PageUp/Shift+arrow handlers below. Plain
arrows still drive in-prompt selection — they don't fall through.
- ApprovalPrompt now maps Esc to onChoice('deny'), parity with the global
Ctrl+C cancellation path that already invokes cancelOverlayFromCtrlC()
for approvals. The bottom-of-prompt hint now advertises 'Esc/Ctrl+C deny'.
- Extract approvalAction(ch, key, sel) — pure key-dispatch helper for the
approval prompt, exported so the regression matrix (Esc, numbers, Enter,
arrows, edge clamping, precedence) is testable without mounting Ink.
Tests:
- useInputHandlers.test.ts: 6 cases covering shouldFallThroughForScroll
positives (wheel/PageUp/PageDown/Shift+arrows) and negatives (plain
arrows, bare shift, no scroll key).
- approvalAction.test.ts: 8 cases covering Esc→deny, numeric mapping,
Enter, ↑↓ within bounds, edge clamping, Esc-beats-others precedence,
unrelated keystrokes.
* refactor(tui): thread cols through Md/StreamingMd/renderTable, update cache key
* feat(tui): three-tier width calc + full-line string rendering in renderTable
Replaces the old renderTable (L203-244) with:
- Empty table guard
- Ragged row normalization
- Three-tier column width calculation (ideal → proportional shrink → hard scale)
- Rounding remainder distribution
- Full-line string rendering (one <Text> per row, not per cell)
- wrap=truncate-end on all table lines
- All cells rendered as plain text via stripInlineMarkup
No wrapping or vertical fallback yet — those come in Phase 3 and 4.
* feat(tui): wrapCell with grapheme-safe hard-break + multi-line row rendering
Adds:
- Intl.Segmenter-based grapheme splitting (fallback to [...word])
- wrapCell() for width-correct word wrapping on stripped text
- Multi-line row rendering with LineEntry metadata (header/separator/body)
- Post-render safety condition (maxLineWidth computed, vertical fallback in Task 4)
- Non-wrapping path preserved for tables that fit at ideal widths
* feat(tui): vertical key-value fallback with scaled threshold + safety check
Wires:
- Scaled row-height threshold (numCols<=3: 8, <=6: 5, else: 4)
- Post-render safety check (maxLineWidth > available space)
- Header-only edge case
- Vertical format: bold headers, stripped cell text, clamped separator width
- Iterates headers (not rows) for consistent key-value fields on ragged rows
* test(tui): pass cols to Md in test helpers, add width-overflow assertions
- renderAtWidth now passes cols={columns} to <Md> so width-aware code paths
are exercised in tests
- tableFuzz: every rendered line must fit within allocated width (stringWidth)
- tableRepro: separator regex updated to match truncation ellipsis
- stringWidth imported from @hermes/ink for CJK-correct assertions
* fix(tui): address adversarial review — comment tier 3 budget overshoot, eliminate redundant wrapCell
- Add comment on Tier 3 MIN_COL_WIDTH clamp exceeding budget (self-heals via safetyOverflow)
- Track tallestBodyRow during allEntries build pass instead of re-wrapping every cell
in a second traversal (eliminates O(cells) of redundant stripInlineMarkup+stringWidth)
* fix(tui): pass cols to recursive fenced-markdown Md, fix test frame extraction
- Thread cols into <Md> for fenced markdown blocks (L734) so nested
tables use the width-aware renderer instead of max-content path
- Fix renderAtWidth helpers to extract final Ink repaint frame instead
of concatenating all intermediate frames (REPAINT_RE split)
- Add fenced-markdown-table fixture to tableFuzz (exercises the nested path)
* chore: remove repro test suites and tmux driver script
These were scaffolding for development/reproduction — not needed in the PR.
Accept delegation timeout/error statuses in the TUI subagent model, normalize unknown status strings defensively, and harden /agents overlay rendering/sorting so unknown statuses cannot crash glyph/color lookup. Add regression tests for live event normalization and disk snapshot replay.
Avoid shifting the terminal's last visible row in the alt-screen DECSTBM fast path, which can leave transient scroll bleed/discoloration artifacts around the status lane until a repaint. Add regression tests to preserve the fast path when safe and skip it when the hint touches the bottom row.
