hermes-agent/apps/desktop
ethernet 8b1c1dfa1d fix(desktop): review fixes for the agent-side TurnQueue
Review findings on the TurnQueue PR, fixed in one pass:

1. "Send now" on an idle session was a silent no-op: session.queue.promote
   reordered the queue but never drained it, so the promoted entry (and the
   drainNextQueued rescue gesture built on it) just sat there. Promote now
   fires _drain_queued_prompt in a thread when the session is idle, same as
   an idle session.queue.add.

2. A drained entry whose dispatch raised was lost: _drain_queued_prompt
   popped the entry and emitted queue.drained (painting a user turn in the
   client transcript) before _run_prompt_submit. On exception the entry was
   gone and the transcript lied. The drain now requeues the entry at the
   head (same id, so client mirrors stay consistent) via the new
   TurnQueue.requeue_front(), and queue.drained is only emitted after a
   successful dispatch.

3. Multi-line steers never settled: settlePendingSteer split the applied
   text into a line-set, so an entry that itself contained newlines
   (Cmd+Enter on a multi-line draft) matched nothing and pinned a
   "Steering..." row forever. Now matches by whole-entry containment, plus a
   message.complete backstop sweep (a steer can't outlive its turn: applied,
   dropped, or re-queued as the next turn).

4. Speculative surface removed per the contribution rubric: QueuedTurn.mode
   (written, never read), QueuedTurn.attachments (clients resolve
   attachments to @file: refs at enqueue time), enqueue_front() (replaced by
   the requeue_front() that finding 2 actually needs), and the keep_queue
   param on session.interrupt (documented for a promote+interrupt flow that
   actually interrupts via agent.interrupt() directly, so it was dead).

Also: unused sessionId arg dropped from useComposerQueue, the steer-event
lambda no longer shadows the enclosing text parameter, and a rejected
session.queue.add now surfaces an i18n'd error toast instead of silently
no-oping (draft is kept either way).

Tests: idle-promote drains immediately, failed dispatch requeues at head
without emitting queue.drained, interrupt clears the queue, multi-line
steer settles. 16 gateway tests pass; desktop tsc/eslint/vitest clean.
2026-07-15 17:54:21 -04:00
..
assets
electron Merge remote-tracking branch 'origin/main' into bb/contrib-areas 2026-07-15 13:22:08 -04:00
pr-assets chore(desktop): drop PR screenshot assets from tree 2026-07-07 13:04:32 -07:00
public fix(providers): align Fireworks integration with project policy 2026-07-11 05:43:35 -07:00
scripts fix(desktop): recognize little-endian Mach-O magic in native binary classifier 2026-07-13 17:22:17 -04:00
src fix(desktop): review fixes for the agent-side TurnQueue 2026-07-15 17:54:21 -04:00
.prettierrc
AGENTS.md docs(desktop): add judgment-first AGENTS guide and align DESIGN/README 2026-07-12 05:31:54 -04:00
components.json feat(desktop): add shared project UI primitives 2026-06-25 16:40:27 -05:00
DESIGN.md docs(desktop): add judgment-first AGENTS guide and align DESIGN/README 2026-07-12 05:31:54 -04:00
eslint.config.mjs chore(desktop): build config — keep tsc emit out of src, gitignore artifacts 2026-07-13 17:57:54 -04:00
index.html feat(desktop): composer status stack, live subagent windows, editable prompts (#44630) 2026-06-12 08:30:06 -05:00
package.json chore: upgrade @assistant-ui/react 0.12 to 0.14 and react-streamdown 0.1 to 0.3 2026-07-15 01:41:03 -04:00
preview-demo.html
README.md Merge pull request #63103 from NousResearch/bb/desktop-docs-alignment 2026-07-12 04:34:21 -05:00
tsconfig.electron.json feat(desktop): ts-ify everything 2026-07-08 16:24:16 -07:00
tsconfig.json chore(desktop): build config — keep tsc emit out of src, gitignore artifacts 2026-07-13 17:57:54 -04:00
vite.config.ts chore(desktop): build config — keep tsc emit out of src, gitignore artifacts 2026-07-13 17:57:54 -04:00
vitest.config.ts test(desktop): run scripts/ tests in vitest 2026-07-13 17:22:17 -04:00
vitest.setup.ts test(desktop): fix React act() warnings across all desktop test files 2026-07-13 17:22:17 -04:00

Hermes Desktop ☤

Download Documentation Discord License: MIT

The native desktop app for Hermes Agent — the self-improving AI agent from Nous Research. Same agent, same skills, same memory as the CLI and gateway, in a polished native window — chat with streaming tool output, side-by-side previews, a file browser, voice, and settings, no terminal required. Available for macOS, Windows, and Linux.

Chat with the full agentStreaming responses, live tool activity, structured tool summaries, and the same conversation history as every other Hermes surface.
Side-by-side previewsRender web pages, files, and tool outputs in a right-hand pane while you keep chatting.
File browserExplore and preview the working directory without leaving the app.
VoiceTalk to Hermes and hear it back.
Settings & onboardingManage providers, models, tools, and credentials from a real UI. First-run setup gets you to your first message in seconds.
Stays currentBuilt-in updates pull the latest agent and rebuild the app in place.

Install

Already have the Hermes CLI? Just run:

hermes desktop

It builds and launches the GUI against your existing install — same config, keys, sessions, and skills. On first launch Hermes walks you through picking a provider and model; nothing else to configure.

Prebuilt installers

Prebuilt installers are built and distributed via the Hermes Desktop website..


Updating

The app checks for updates in the background and offers a one-click update when one is ready. You can also update any time from the CLI:

hermes update

Requirements

The installer handles everything for you (Python 3.11+, a portable Git, ripgrep).


Development

Want to hack on the app itself? Install workspace deps from the repo root once, then run the dev server from this directory:

npm install          # from repo root — links apps/desktop, web, apps/shared
cd apps/desktop
npm run dev          # Vite renderer + Electron, which boots the Python backend

Point the app at a specific source checkout, or sandbox it away from your real config:

# throwaway HERMES_HOME, separate Electron userData, distinct app name to avoid the single-instance lock
../scripts/dev-sandbox.sh npm run dev
HERMES_DESKTOP_HERMES_ROOT=/path/to/clone npm run dev
HERMES_HOME=/tmp/throwaway npm run dev
npm run dev:fake-boot   # exercise the startup overlay with deterministic delays

Building installers

npm run dist:mac     # DMG + zip
npm run dist:win     # NSIS + MSI
npm run dist:linux   # AppImage + deb + rpm
npm run pack         # unpacked app under release/ (no installer)

Installers are built and uploaded to GitHub Releases manually. macOS/Windows signing & notarization happen automatically when the relevant credentials are present in the environment (CSC_LINK / CSC_KEY_PASSWORD / APPLE_* for macOS, WIN_CSC_* for Windows).

How it works

The packaged app ships the Electron shell and a native React chat surface. On first launch it can install the Hermes Agent runtime into HERMES_HOME (~/.hermes, or %LOCALAPPDATA%\hermes on Windows), using the same layout as a CLI install.

The app has three boundaries:

  • Electron resolves and validates a runnable backend, owns native filesystem/git/window capabilities, and exposes a narrow preload bridge.
  • React owns the Desktop routes, panes, interaction state, and @assistant-ui/react transcript.
  • Hermes Agent runs as a headless hermes serve process and exposes the tui_gateway JSON-RPC/WebSocket API. The renderer connects through apps/shared, which is also used by the browser dashboard.

Backend resolution is an ordered ladder:

  1. HERMES_DESKTOP_HERMES_ROOT
  2. the current source checkout during development
  3. a completed managed install
  4. HERMES_DESKTOP_HERMES, or hermes on PATH
  5. a system Python that can import the Hermes runtime
  6. the first-launch bootstrap installer

Candidates are probed before use; an existing shim or interpreter is not enough. A runtime that predates serve falls back to headless dashboard --no-open. This is compatibility for the backend command only and does not launch or embed the dashboard UI.

The Electron orchestration entry point is electron/main.ts; pure resolution, probe, hardening, and platform policies live in focused modules beside it. The renderer is under src/, with shared atoms in src/store and transport/native adapters in src/lib.

Before changing the app, read:

  • AGENTS.md: architecture, state ownership, resolver/fallback, transport, performance, and testing rules.
  • DESIGN.md: visual system, information architecture, motion, direct manipulation, and keyboard behavior.

Connections, projects, and switching

Desktop supports a managed local backend, explicit remote gateways, and Hermes Cloud connections. Remote and cloud modes use the same remote-capability path; authentication and discovery differ, not the renderer feature model.

Projects are the workspace abstraction. A project may own multiple folders, repositories, worktrees, and sessions; a bare new chat remains detached unless the user enters a project or configures a default project directory. Use the Projects UI rather than adding a second per-session folder-picker workflow.

Changing profiles or connection modes is a soft workspace switch, not another cold boot. The shell and current management overlay remain mounted while gateway-bound nanostores are wiped, query-backed data is invalidated, and the new connection repopulates skeletons. This prevents rows or transcripts from the previous gateway bleeding into the next one.

Verification

Run before opening a PR (lint may surface pre-existing warnings but must exit cleanly):

npm run fix
npm run typecheck
npm run lint
npm run test:ui
npm run test:desktop:platforms

Run npm run test:desktop:all for install, boot, update, packaging, or other release-path changes.

Troubleshooting

Boot logs land in HERMES_HOME/logs/desktop.log (includes backend output and recent Python tracebacks) — check it first if the app reports a boot failure.

macOS / Linux:

# Force a clean first-launch setup
rm "$HOME/.hermes/hermes-agent/.hermes-bootstrap-complete"
# Rebuild a broken Python venv
rm -rf "$HOME/.hermes/hermes-agent/venv"
# Reset a stuck macOS microphone prompt (macOS only)
tccutil reset Microphone com.nousresearch.hermes

Windows (PowerShell):

# Force a clean first-launch setup
Remove-Item "$env:LOCALAPPDATA\hermes\hermes-agent\.hermes-bootstrap-complete"
# Rebuild a broken Python venv
Remove-Item -Recurse -Force "$env:LOCALAPPDATA\hermes\hermes-agent\venv"

The default Hermes home on Windows is %LOCALAPPDATA%\hermes. Set the HERMES_HOME env var if you've relocated it.


Community


License

MIT — see LICENSE.

Built by Nous Research.