Sage 5089c84dbf fix(mcp): reap orphaned stdio MCP children on ungraceful parent death ... A stdio MCP server (e.g. `npx -y mcp-remote <url>`) is spawned as a direct child of the Hermes process. Existing teardown (MCPServerTask.shutdown() / _kill_orphaned_mcp_children()) reaps it correctly on a clean exit, but a kill -9 / crash / force-quit of the Hermes process skips that path entirely -- the child (and its own descendants, e.g. mcp-remote's spawned node process) is orphaned and keeps running. Repeated ungraceful restarts pile up N orphaned processes racing to hold the same upstream SSE session, producing errors like 'Invalid request parameters' on legitimate reconnects. macOS/Linux have no portable equivalent of prctl(PR_SET_PDEATHSIG) at the Python subprocess level, so this adds a thin supervisor (tools/mcp_stdio_watchdog.py) that: - execs the real command as its own child in its own process group - passes stdin/stdout/stderr through untouched (MCP stdio protocol talks directly over those streams) - polls the original spawning PID with the same orphan-detection algorithm already proven in tui_gateway/slash_worker.py (ppid comparison + psutil creation-time guard against PID reuse) - SIGTERM-then-SIGKILL's the child's process group the moment the original parent is gone Wired into _run_stdio via a new _wrap_command_with_watchdog() helper, POSIX-only (matches the existing killpg-based cleanup's platform scope), fails open (any error resolving pid/create-time falls back to the unwrapped command) so this can never be the reason a working MCP server stops starting. Verified: reproduced the exact orphan scenario standalone (fake parent process spawns watchdog + fake long-running MCP child, kill -9 the fake parent, confirm the watchdog reaps the child within its poll window with zero leaked processes). Updated test_mcp_tool_issue_948.py's resolved-path assertion to check the watchdog-wrapped command instead of the raw resolved binary. Full test_mcp_tool.py + test_mcp_stability.py + test_mcp_tool_issue_948.py suite: 232 passed. Full -k mcp sweep across the whole test tree: 1003 passed, 2 skipped, 0 failed.		2026-07-07 15:16:00 -07:00
..
acp	fix(acp): also preserve archived rows on model-switch / restore saves	2026-07-01 17:16:51 +05:30
acp_adapter
agent	feat(sessions): trace export + HF upload via 'sessions export --format trace' (#60507)	2026-07-07 15:12:49 -07:00
ci	fix(ci): classify should default to no MCP	2026-06-23 10:32:27 -07:00
cli	perf(cli): TTFT round 2 — live reasoning by default, partial-line streaming, prompt-build cache, stale budget-warning docs (#59389)	2026-07-06 00:16:38 -07:00
computer_use	fix(computer-use): sanitize env on the 4 remaining cua-driver spawn sites (#59165)	2026-07-05 14:48:20 -07:00
cron	fix: normalize against tools.skills_tool.SKILLS_DIR, the root skill_view enforces	2026-07-07 14:40:56 +05:30
dashboard	fix(dashboard): use loopback host for in-container WebSocket client (#58993) [salvage #59682] (#60092)	2026-07-07 18:33:28 +10:00
docker	fix: remove dead f-string prefixes via ruff F541 (216 sites) (#52336)	2026-07-05 13:42:46 -07:00
e2e	test(e2e): stub reset-notice session info to deflake test_new_resets_session (#60175)	2026-07-07 04:28:12 -07:00
fakes
fixtures/plugins/example-dashboard/dashboard
gateway	feat(discord): optionally mention approval owners on exec prompts	2026-07-07 13:46:51 -07:00
hermes_cli	feat(plugins): pass approve rule keys to approval gate	2026-07-07 15:14:30 -07:00
hermes_state	feat(sessions): full prune-filter set + --redact on sessions export	2026-07-07 12:36:41 -07:00
honcho_plugin	feat(memory): Honcho OAuth connect — desktop and CLI flows + token refresh (#44335)	2026-06-22 19:16:47 -05:00
integration	fix: remove dead f-string prefixes via ruff F541 (216 sites) (#52336)	2026-07-05 13:42:46 -07:00
manual	docs(cron): scope in_channel to channels; document DM continuation knob	2026-07-01 03:16:13 -07:00
openviking_plugin	feat(openviking): add full recall prefetch policy	2026-06-24 18:53:49 +05:30
plugins	feat(mem0): add self-hosted mode to the setup wizard	2026-07-07 14:07:16 -07:00
providers	fix(models): pass model.base_url to fetch_models in /model picker	2026-06-16 13:09:40 -07:00
run_agent	feat(plugins): pass approve rule keys to approval gate	2026-07-07 15:14:30 -07:00
scripts	revert(windows): roll back terminal-popup PRs #53791 #53810 #53829 (#53853)	2026-06-27 15:59:00 -07:00
secret_sources	feat(secrets): adapt 1Password onto the SecretSource interface	2026-07-06 04:58:07 -07:00
skills	blocked-tail pass: blind opt-out default, email fallback, peopleconnect delete-wipes-suppression	2026-07-03 15:21:04 -04:00
stress	fix: remove dead f-string prefixes via ruff F541 (216 sites) (#52336)	2026-07-05 13:42:46 -07:00
tools	fix(mcp): reap orphaned stdio MCP children on ungraceful parent death	2026-07-07 15:16:00 -07:00
tui_gateway	fix(tui): pass profile_home to slash_worker subprocess for profile-local skill discovery (#40677)	2026-07-07 05:14:00 -07:00
website
__init__.py
conftest.py	feat(managed-scope): add managed_scope module (resolver, loaders, key helpers)	2026-06-19 07:46:33 -07:00
run_interrupt_test.py
test_account_usage.py
test_assistant_ui_tap_compat.py	test(deps): guard @assistant-ui cluster on one tap version	2026-06-15 11:55:02 -04:00
test_atomic_replace_symlinks.py	fix(config): preserve owner on atomic writes (#56644)	2026-07-03 14:27:34 +10:00
test_background_review_list_shapes.py	fix(background-review): guard summarize against list-shaped tool responses (#59437)	2026-07-06 03:28:30 -07:00
test_background_review_session_isolation.py	test(review): add integration guards for the two isolation wirings (review)	2026-07-01 16:21:39 +05:30
test_base_url_hostname.py
test_batch_runner_checkpoint.py
test_bitwarden_secrets.py	feat(secrets): pluggable SecretSource interface + multi-source orchestrator	2026-07-06 04:58:07 -07:00
test_cli_file_drop.py
test_cli_manual_compress.py
test_cli_skin_integration.py
test_code_skew.py	fix(gateway): refuse model switch on stale checkout to avoid env_float ImportError	2026-06-24 04:16:54 +05:30
test_copilot_initiator.py	fix(copilot): set x-initiator per turn so user prompts bill as premium requests (salvage #4097) (#58544)	2026-07-05 00:44:15 -07:00
test_ctx_halving_fix.py
test_dashboard_sidecar_close_on_disconnect.py	fix(dashboard): hide sidecar sessions from history (#49269)	2026-06-19 18:06:38 -04:00
test_delegate_cascade_49148.py	fix(agent): stop delegate cascade from deleting the parent session	2026-06-21 12:09:16 -07:00
test_desktop_electron_pin.py	fix(desktop): resolve electronDist dynamically + self-heal blocked installs (supersedes #48081/#48082) (#48091)	2026-06-17 18:48:35 -05:00
test_desktop_mac_entitlements.py
test_dispatch_session_id.py	fix(dispatch): forward session_id into registry.dispatch (#28479)	2026-06-14 00:27:59 -04:00
test_empty_model_fallback.py
test_empty_session_hygiene.py
test_env_loader_op_bootstrap.py	fix(secrets): make 1Password bootstrap token reliable outside systemd	2026-07-06 04:58:07 -07:00
test_env_loader_secret_sources.py	feat(secrets): adapt 1Password onto the SecretSource interface	2026-07-06 04:58:07 -07:00
test_evidence_store.py
test_fast_safe_load.py	perf(startup): parse config + plugin manifests with libyaml CSafeLoader (#54486)	2026-06-28 15:38:39 -07:00
test_gateway_streaming_nested_config.py
test_get_tool_definitions_cache_isolation.py
test_hermes_bootstrap.py	revert(windows): roll back terminal-popup PRs #53791 #53810 #53829 (#53853)	2026-06-27 15:59:00 -07:00
test_hermes_constants.py	test: update reasoning-effort docstring guards for new 'max' level	2026-07-04 14:19:44 +05:30
test_hermes_home_profile_warning.py
test_hermes_logging.py	fix(logging): drive rotating file handlers through an async QueueListener	2026-07-05 11:44:53 +05:30
test_hermes_state.py	fix(state): heal NULL active rows on every startup, not just pre-v12 DBs	2026-07-07 14:40:18 +05:30
test_hermes_state_compression_locks.py
test_hermes_state_wal_fallback.py
test_honcho_client_concurrency.py
test_honcho_client_config.py
test_honcho_session_context.py
test_honcho_startup_fail_open.py
test_install_diverged_update.py	test(installer): cover diverged managed-clone recovery in install scripts	2026-06-30 20:11:01 +07:00
test_install_lockfile_churn.py	fix(install): discard managed lockfile churn before stashing	2026-06-25 23:49:11 -07:00
test_install_no_initial_commit.py
test_install_ps1_native_stderr_eap.py	fix(install): fail fast when uv venv genuinely fails under relaxed EAP	2026-06-18 22:11:35 +05:30
test_install_ps1_node_path_for_npm.py	test(installer): guard Ensure-NodeExeOnPath wiring in install.ps1	2026-07-07 21:17:34 +07:00
test_install_ps1_python_fallback_venv.py	test(installer): lock Python-fallback propagation into the venv stage (#50769)	2026-06-23 21:33:08 -07:00
test_install_ps1_uv_powershell_host.py	test(install): lock uv installer to a resolved PowerShell host	2026-06-18 16:26:34 +07:00
test_install_ps1_web_server_syntax_probe.py	fix(install): guard Windows desktop installs against broken web_server	2026-07-05 19:35:30 -07:00
test_install_sh_browser_install.py	test(install): track run_with_timeout extraction after #39219 refactor (#54185)	2026-06-28 03:58:01 -07:00
test_install_sh_install_method_stamp.py	fix(update): scope install-method stamp to the code tree, not $HERMES_HOME (#48188)	2026-06-18 14:14:41 +10:00
test_install_sh_node_global_prefix.py	fix(hermes): heal broken managed Node tree instead of PATH fallback	2026-06-26 20:10:20 +05:30
test_install_sh_pythonpath_sanitization.py
test_install_sh_root_fhs_uv_python_path.py
test_install_sh_setup_wizard_tty_probe.py
test_install_sh_symlink_stomp.py
test_install_sh_termux_network_prereqs.py
test_install_unmerged_index.py	fix(install): discard managed lockfile churn before stashing	2026-06-25 23:49:11 -07:00
test_ipv4_preference.py
test_lazy_session_regressions.py	fix(gateway): surface retry hint instead of silently dropping turn after /stop (#31884)	2026-06-24 23:51:31 +05:30
test_lint_config.py
test_live_system_guard_self_test.py
test_mcp_serve.py	refactor: consolidate gateway session metadata into state.db (#58899)	2026-07-05 14:01:03 -07:00
test_mini_swe_runner.py
test_minimax_model_validation.py
test_minimax_oauth.py
test_minisweagent_path.py
test_model_forces_max_completion_tokens.py
test_model_picker_scroll.py
test_model_tools.py	fix(toolsets): preserve core tools when a posture toolset is in disabled_toolsets (#57315)	2026-07-05 14:51:49 -07:00
test_model_tools_async_bridge.py
test_ollama_num_ctx.py	test(vision): cover Ollama /api/show vision capability routing (#54511)	2026-06-28 22:52:59 -07:00
test_onepassword_secrets.py	feat(secrets): add 1Password (op://) secret source	2026-07-06 04:58:07 -07:00
test_output_cap_parsing.py	fix(context): parse vLLM's token-based output-cap error format	2026-07-01 03:17:48 -07:00
test_package_json_lazy_deps.py
test_packaging_metadata.py	security(deps): enforce aiohttp CVE floor on all lazy messaging paths + coverage guard	2026-07-01 02:51:45 -07:00
test_plugin_skills.py
test_plugin_utils.py
test_process_loop_event_loop_warning.py
test_profile_isolation_runtime.py	test(profile): two-profile regression suite + preserve skills_hub monkeypatch seam	2026-06-30 15:30:06 -07:00
test_project_metadata.py	fix(memory): lazy-install supermemory + mem0 SDKs like honcho/hindsight	2026-06-29 00:25:36 -07:00
test_pty_keepalive_ws.py	feat(chat): reattach /api/pty sessions via ?attach= token	2026-07-07 15:15:37 -07:00
test_pty_session.py	feat(pty): periodic reaper wired into dashboard lifespan	2026-07-07 15:15:37 -07:00
test_retry_utils.py	refactor(retry): single-source Z.AI overload short-attempts + drop change-detector assert	2026-07-07 11:57:01 +05:30
test_run_tests_parallel.py	fix(tests): bare pytest flags pass through run_tests.sh without a '--' separator (#54008)	2026-06-27 22:43:26 -07:00
test_sanitize_tool_error.py
test_setup_temporary_outputs.py	refactor(ci): rewrite docker tests to check built container	2026-06-26 19:15:18 -07:00
test_slash_worker_watchdog.py
test_sql_injection.py
test_stale_utils_module_import.py	fix(gateway): refuse model switch on stale checkout to avoid env_float ImportError	2026-06-24 04:16:54 +05:30
test_state_db_malformed_repair.py	fix(state): detect and repair FTS write corruption that silently drops gateway history (#52798)	2026-06-25 21:18:41 -07:00
test_subprocess_home_isolation.py	fix: make profile subprocess HOME policy explicit	2026-06-14 03:20:21 -07:00
test_termux_all_extra_compat.py
test_timezone.py
test_toolset_distributions.py
test_toolsets.py	feat(mcp): adopt mcp__server__tool naming convention	2026-07-05 13:40:21 -07:00
test_trajectory_compressor.py
test_trajectory_compressor_async.py
test_transform_llm_output_hook.py
test_transform_tool_result_hook.py
test_tui_gateway_loop_noise.py	fix(tui_gateway): suppress WS peer-hangup teardown error flood (#50005) (#54126)	2026-06-28 02:35:01 -07:00
test_tui_gateway_queue_on_busy.py	fix(tui_gateway): queue mid-turn prompts instead of dropping them on a busy retry	2026-06-25 12:29:49 -05:00
test_tui_gateway_server.py	fix: limit desktop model pickers to explicit providers	2026-07-07 15:12:54 -07:00
test_tui_gateway_ws.py	fix(tui): start MCP discovery for websocket sessions	2026-06-28 04:14:12 -07:00
test_tui_mcp_late_refresh.py	fix(tui): refresh tool snapshot when MCP discovery lands after agent build (#48403)	2026-06-18 05:41:23 -07:00
test_utils_truthy_values.py
test_web_server.py	fix(dashboard): disable ws keepalive ping on loopback to survive event-loop stalls	2026-07-03 03:33:22 +05:30
test_wheel_locales_e2e.py
test_windows_subprocess_no_window_flags.py	test: make windows no-window-flag assertions immune to update-check daemon	2026-06-30 01:35:55 -05:00
test_yaml_indent_consistency_31999.py	fix(utils): unify YAML list indent across all config writers (#31999)	2026-06-25 23:27:44 +05:30
test_yuanbao_integration.py
test_yuanbao_markdown.py
test_yuanbao_pipeline.py	fix(yuanbao): skip resource resolve on cache hits	2026-07-05 13:53:30 -07:00
test_yuanbao_proto.py
test_yuanbao_reconnect_set_active.py	fix(yuanbao): restore active singleton after WS reconnect	2026-07-05 00:41:34 -07:00
test_yuanbao_shutdown.py