many tests patched sys.platform or a module's _IS_WINDOWS flag, then
ran on linux ci. the patch selects the branch under test, but the host
does not have the behavior the branch exists for. the test proves the
patch, not the platform. some gated assertions never ran on any host.
this commit adds three markers: linux_only, macos_only, windows_only.
a conftest hook skips a marked test on the other hosts, with a clear
reason. no test fakes a host now. two documented fakes remain
(android/termux, freebsd) because no ci runner exists for them.
each fake site got one of four treatments:
- gate it: the real host supplies the platform; mocks cover real
dependencies only, never host identity
- patch the module's own probe when the subject is the probe's consumer
- assert against the real host when the fake stood in for any non-x host
- delete the patch when it set the value the host already has
bare skipif(sys.platform != ...) guards became markers too. the lane
model skips these on linux and never imports them on windows, so they
ran on no host. platform parametrize tables are now one marked test
per os.
running on real hosts found real errors: a chrome-sandbox failure in
test_gui_command that main hides, and two windows failures fixed here.
the agents.md testing section now documents the policy.
Uvicorn's 16 MiB default drops one-shot base64 remote attachments before
Hermes sees them. Raise ws_max_size to fit the 256 MiB attach reader after
base64 expansion, and bump DESKTOP_BACKEND_CONTRACT to v5 so older remotes
surface skew instead of silent disconnects.
Co-authored-by: Börje <borje@dqsverige.se>
Accept descriptor-safe one-shot token files and exact owner nonces, expose an authenticated ownership proof endpoint, and preserve the process-local contract across parser and server startup paths.
Desktop/dashboard WebSocket connections drop during long agent operations
(delegate_task subagents, large model outputs) when the uvicorn event loop is
GIL-starved for minutes. Root cause: uvicorn's ws keepalive ping runs on the
SAME event loop as agent turns. A single synchronous GIL-holding call on a
worker thread (a regex/scrub over a large output, or a long subagent turn)
freezes the loop, so it cannot process the incoming pong within ws_ping_timeout
and uvicorn closes an otherwise-healthy connection (#53773: 'event loop stalled
226.3s'; #48445/#50005). Loosening the timeout only raises the threshold — a
multi-minute stall sails past any finite window.
The keepalive ping exists to detect half-open connections (reverse-proxy 524,
dropped tunnels), which cannot happen on loopback: there is no network or proxy
in the path, and a dead local client tears the socket down with a real FIN/RST
that starlette surfaces as WebSocketDisconnect regardless of the ping. So on
loopback the ping provides ~no liveness value while actively killing
recoverable stalls — disable it entirely (ws_ping_interval/timeout=None).
Non-loopback (public) binds sit behind a Cloudflare Tunnel where half-open IS a
real failure mode, so the ping stays at 20/20 to detect it.
Empirically verified (real uvicorn + websockets peer): with ws_ping=None the
server never closes a silent peer during an 8s window; with the pre-fix 2s/2s
window uvicorn closes it. A genuinely-dead client still fires the
WebSocketDisconnect reap path regardless of the ping.
Note: this fixes the local Desktop case (the OP's scenario). A remote Desktop
over an authenticated public dashboard route (McCalebTheSecond's comment) keeps
the ping and needs the deeper GIL-hotspot fix — tracked separately.
Closes#53773
The loopback ws-ping window is now 30s/60s (#48445/#50005), so the
hardcoded == 20.0 assertion was a change-detector that broke the moment
the loopback tuning landed. Assert the behavioral contract instead: ping
stays enabled (positive) and timeout >= interval.
On Windows, start_server() served uvicorn via a bare asyncio.run(_serve()),
which uses the default ProactorEventLoop. uvicorn's socket-serving stack
assumes a SelectorEventLoop on win32 (uvicorn/loops/asyncio.py forces it, and
uvicorn.Server.run threads config.get_loop_factory() into its runner for
exactly this reason). Driving uvicorn on the proactor loop makes
server.startup() bind a socket that never accepts: the dashboard and desktop
backend print "Skipping web UI build" then hang forever with the port
LISTENING but no TCP handshake completing.
Fix is win32-scoped to keep the blast radius minimal: POSIX keeps the exact
asyncio.run(_serve()) it had (its default loop is already a SelectorEventLoop /
uvloop, which is what uvicorn serves on). Only on Windows do we mirror
uvicorn.Server.run and run on the loop factory uvicorn picks, with a fallback
to WindowsSelectorEventLoopPolicy for uvicorn < 0.36.
Fixes hermes dashboard and hermes desktop (the Electron app spawns a
hermes dashboard backend). The gateway symptom in the report has a separate
root cause (no uvicorn) and is not addressed here.
Replace the PortPool-based port reservation system (9120-9199 range) with OS-assigned ephemeral ports via --port 0.
Before: Desktop probed a hardcoded port range, reserved ports in-process to close TOCTOU races, and passed the chosen port to the dashboard via CLI arg.
After: Desktop spawns dashboard with --port 0, parses the actual port from a stdout announcement line (HERMES_DASHBOARD_READY port=<N>), and uses that for WebSocket connections.
Changes:
- web_server.py: add --port 0 support with SO_REUSEADDR pre-bind + announcement; add EADDRINUSE preflight for explicit ports
- main.cjs: remove PortPool, PORT_FLOOR/CEILING, pickPort(), isPortAvailable(); add waitForDashboardPort() stdout parser
- Delete port-pool.cjs and port-pool.test.cjs (106 lines removed)
Net effect: eliminates the entire TOCTOU-mitigation reservation infrastructure and arbitrary port range constraints. OS handles port allocation natively.
Salvaged from #35626 (banditburai) and re-scoped after maintainers landed the
parent-death watchdog (slash_worker.py) and PTY process-group teardown
(pty_bridge.py) directly on main. Those pieces are intentionally NOT included
here — this carries only what is still missing:
- C1 disconnect reap: ws.py's `finally` only re-pointed the dead transport at
stdio. `_close_sessions_for_transport` now reaps `close_on_disconnect`
sessions and schedules the grace-reap for the rest, offloaded via
`asyncio.to_thread` so the blocking worker.close() + DB write never stalls
the uvicorn loop.
- C2 create/close orphan race: `_attach_worker` stores the worker iff
`_sessions.get(sid) is session` under the lock (else closes it), applied at
every spawn site incl. the post-turn `_restart_slash_worker`.
- Single idempotent teardown funnel: session.close, WS disconnect, the
generous-TTL idle reaper, shutdown, and the WS grace-reap all reach
`_close_session_by_id` → `_teardown_session`; `_finalized`/`_closed` flags
make concurrent/double teardown a no-op. `_sessions_lock` upgraded to RLock.
- uvicorn `ws_ping_interval/timeout=20s` so a half-open socket (reverse-proxy
524) becomes a `WebSocketDisconnect` and the C1 path runs.
Plus two review-driven hardening fixes (mine):
- `session.active_list` now skips `_finalized` sessions so the footer
"N sessions" count reflects attachable sessions instead of only ever
growing until restart (#38950). Keys on `_finalized` only, NOT the stdio
sentinel, so a standalone `hermes --tui` session stays visible.
- `_schedule_ws_orphan_reap._reap` pops via `_close_session_by_id`
(under `_sessions_lock`) instead of `_sessions.pop` under the unrelated
`_session_resume_lock` (#39591); the resume_lock now only guards the orphan
re-check against `session.resume`.
- Float env knobs (`HERMES_SLASH_WATCHDOG_*`, `HERMES_TUI_SESSION_TTL_S`)
parse with a fallback helper so a malformed value can't crash the worker at
import.
Fixes#32377Fixes#38950
Addresses #22855
Co-authored-by: banditburai <123342691+banditburai@users.noreply.github.com>
Co-authored-by: kshitijk4poor <82637225+kshitijk4poor@users.noreply.github.com>
ethernet
Brooklyn Nicholson
yoniebans
kshitijk4poor
teknium1
firefly