hermes-agent/ui-opentui
alt-glitch 76eab10b14 opentui(v6): simplify the background-activity work (dedup + dead-code removal)
/simplify pass over this session's diff (4 cleanup agents → applied the high-value
findings):
- reuse: extract the duplicated truncRight/truncLeft (statusBar/agentsDashboard/
  backgroundPanel) to logic/truncate.ts; export DONE_STATUSES/procIsRunning from
  backgroundActivity and drop backgroundPanel's re-declared copy.
- simplification: remove dead/speculative exports (upsertNotification,
  clearNotificationsByKey, BackgroundRun) — the campaign models notifications as
  Message rows, not a notifications array — and drop runningCount's always-empty
  `runs` param; collapse notificationDispatcher's always-true `card` field into a
  plain notificationOsc(): TermNotification | undefined.
- efficiency: the bg-process poll now idles at 30s (was a flat 8s) and tightens to
  8s only when something is running — most sessions have zero background processes.
- altitude: the ` agents` chip joins the statusSegments width-ladder (was an inline
  width gate) so all bar segments share one drop policy; refreshed the stale
  statusBar header (bg: is wired now, not "reserved").

Net −95 LOC. Gate green. Skipped (noted): statusColor merge (divergent domains),
the pushNotification double-clone (necessary — guards the Solid aliasing footgun),
moving the notification-card dispatch out of messageLine, and the Message-row model
(deliberate "inline in transcript" design).
2026-06-13 22:30:27 +05:30
..
parsers opentui(v6): syntax highlighting for 10 more languages (vendored tree-sitter grammars) 2026-06-12 13:26:17 +05:30
scripts opentui(v6): syntax highlighting for 10 more languages (vendored tree-sitter grammars) 2026-06-12 13:26:17 +05:30
src opentui(v6): simplify the background-activity work (dedup + dead-code removal) 2026-06-13 22:30:27 +05:30
.gitignore opentui(v6): degrade SyntaxStyle exhaustion, unmask the exit-7 crash, clamp the cap to the 65k native handle table 2026-06-11 04:06:19 +05:30
.node-version docs: OpenTUI dev handoff — base operating manual for continuing memory+UX on the canonical branch 2026-06-13 18:43:30 +05:30
.prettierrc feat(tui): run on Node 26 (one runtime), finalize copy UX, rename to ui-opentui 2026-06-09 16:16:48 +00:00
eslint.config.mjs docs: OpenTUI dev handoff — base operating manual for continuing memory+UX on the canonical branch 2026-06-13 18:43:30 +05:30
package-lock.json opentui(v6): standardize fuzzy search on fuzzysort (adapter keeps our API) 2026-06-10 21:04:22 +05:30
package.json docs: OpenTUI dev handoff — base operating manual for continuing memory+UX on the canonical branch 2026-06-13 18:43:30 +05:30
README.md docs: OpenTUI dev handoff — base operating manual for continuing memory+UX on the canonical branch 2026-06-13 18:43:30 +05:30
tsconfig.json feat(tui): run on Node 26 (one runtime), finalize copy UX, rename to ui-opentui 2026-06-09 16:16:48 +00:00
vitest.config.ts opentui(v6): background-agents tray — down-arrow focus + enter to dashboard 2026-06-10 21:00:59 +05:30

ui-opentui — native OpenTUI engine for Hermes

Solid + @opentui/core over Node FFI. Ink (ui-tui/) is the shipping default; this is the experimental engine (draft PR #42922).

Node 26 setup (required; will not touch your other projects)

This package needs Node ≥ 26.3 (--experimental-ffi floor). Everything else on this machine/repo can keep whatever Node it already uses — pin 26 to this directory only:

# 1. install fnm (skip if you have it; nvm/mise work too — see below)
curl -fsSL https://fnm.vercel.app/install | bash
# add to ~/.zshrc (or bashrc): eval "$(fnm env --use-on-cd --shell zsh)"

# 2. install Node 26 SIDE BY SIDE (does NOT change your default)
fnm install 26

# 3. done — this directory has a .node-version (26.3), so `cd ui-opentui`
#    auto-switches to 26 and leaving switches back. Do NOT run `fnm default 26`.
node -v   # v26.x here; your old version everywhere else

No shell integration wanted (CI, scripts, one-off): fnm exec --using 26 -- node ... or invoke the absolute binary (~/.local/share/fnm/node-versions/v26.*/installation/bin/node). mise users: mise use node@26 in this directory. nvm users: nvm install 26, plus an .nvmrc shim (echo 26 > .nvmrc) if you rely on auto-switching.

Gotchas

  • Native modules are ABI-locked. A node_modules installed under Node 20/22 will not load under 26 (and vice versa) — run npm ci (or npm rebuild) after switching versions. Same applies to bench/'s node-pty.
  • Global npm packages don't follow between versions (per-version prefix); reinstall the few you need, or don't use globals.
  • Editor terminals (Zed/VS Code) need the fnm env line in your shell rc; the .node-version auto-switch then covers any shell that cd's here.
  • Never run this package with bun — the FFI seam and the Solid/JSX build are Node-path only here.
  • package.json declares engines.node >= 26.3, so a wrong-Node npm ci warns immediately.

Build & run

node scripts/build.mjs
HERMES_TUI_MOUSE=1 node --experimental-ffi --no-warnings dist/main.js

Gates: npm run check (typecheck + lint + tests). Memory/perf benchmarks live in ../bench/ (see its README). Transcript windowing (memory architecture) is documented in ../docs/plans/opentui-transcript-windowing.md.