reasoning.encrypted_content is sealed to the Responses endpoint that
minted it. When a session switches model providers mid-conversation —
say the user runs /model gpt-5.5 after several turns on grok-4.3, or
vice versa — the persisted codex_reasoning_items carry blobs the new
endpoint cannot decrypt, and every subsequent turn fails with HTTP 400
invalid_encrypted_content.
This is the cross-issuer prevention layer. Pairs with:
* PR #33035 — runtime recovery when the HTTP 400 fires anyway
* PR #33146 — prevention for transient rs_tmp_* items
Stamps each reasoning item with the issuer kind that minted it
(codex_backend / xai_responses / github_responses / other:<url>) at
normalize time, then drops items at replay time when the active
endpoint differs from the stamp. Unstamped (legacy) items pass
through for backwards compatibility.
Cherry-picked from @chaconne67's PR #31629. Conflict against current
main (#33035's replay_encrypted_reasoning parameter) resolved as
'keep both' — the two guards compose: replay_encrypted_reasoning=False
is the session-wide kill switch, current_issuer_kind is the per-item
filter that runs only when replay is still enabled.
Background processes whose command contains `gh pr view --json
statusCheckRollup` or `gh pr checks | jq` now get a runtime hint in
the result pointing at the canonical green-ci-policy snippets. The
homebrew shape has caused at least seven silent CI-watcher failures
in the past two weeks (#31329, #31448, #31695, #31709, #31745,
#32264, #33131) — each one a different jq/awk/grep variation of the
same fundamental problem (stdout buffering, jq null-key edge cases,
conclusion-vs-status confusion, TTY-only banner grepping).
The skill that documents this anti-pattern is excellent, but a skill
only fires if the agent loads it. The tool surface fires on every
misuse. This is the embed-footguns-in-tool-surface pattern from
PR #31289 applied to a recurring failure mode that's outgrown
skill-only enforcement.
Detector is deliberately narrow — flags two specific shapes:
1. Any command containing `statusCheckRollup` (the JSON-API path —
conclusion vs status field semantics keep burning us).
2. `gh pr view` / `gh pr checks` combined with `jq` (gh pr
checks doesn't emit JSON, so any `| jq` here is confused intent;
the canonical column-2 poller uses awk-on-tabs, not jq).
Does NOT flag the blessed column-2 awk-on-tabs poller (which uses
`awk -F"\t" "\==\"pending\""`) or the exit-code-driven
`gh pr checks $PR >/dev/null` snippet.
Hint composes with the existing background-without-notify_on_complete
hint — both can fire on the same call. Each is independently
actionable.
Tests:
- 4 new cases in tests/tools/test_notify_on_complete.py
- test_homebrew_ci_poller_via_statusCheckRollup_emits_hint (positive)
- test_homebrew_ci_poller_via_gh_pr_checks_piped_to_jq_emits_hint (positive)
- test_canonical_column2_awk_poller_does_not_emit_homebrew_hint (negative)
- test_canonical_gh_pr_checks_exit_code_loop_does_not_emit_hint (negative)
- test_non_ci_background_command_does_not_emit_homebrew_hint (negative)
- 30/30 passing (was 26)
Operators behind reverse proxies that don't reliably forward
X-Forwarded-Host / X-Forwarded-Proto / X-Forwarded-Prefix (manual
nginx setups, on-prem ingresses, custom-domain Fly deploys with
incomplete proxy chains) had no way to force the absolute base URL
the OAuth callback redirects from. The dashboard would reconstruct
the redirect_uri from request headers, the IDP would echo it back,
and the user would land on the wrong host or wrong path — 404.
Add `dashboard.public_url` to config.yaml with env override
HERMES_DASHBOARD_PUBLIC_URL. When set, it is the complete authority —
scheme + host + optional path prefix (e.g. https://example.com/hermes) —
and becomes the base for the OAuth `redirect_uri`. X-Forwarded-Prefix
is IGNORED on this code path because the operator has explicitly
declared the public URL; we no longer need to guess from proxy
headers, and stacking the prefix on top would double-prefix the
common case where the prefix is already baked into public_url.
When unset, the existing proxy_headers + X-Forwarded-Prefix
reconstruction runs untouched. Existing Fly.io deploys continue to
work without configuration — this is purely additive.
Precedence mirrors dashboard.oauth.client_id:
env (non-empty) > config.yaml > reconstructed from request
Implementation:
- hermes_cli/config.py: add dashboard.public_url to DEFAULT_CONFIG
with a multi-paragraph doc comment explaining the use case,
the X-Forwarded-Prefix interaction, and the validation rules.
- hermes_cli/dashboard_auth/prefix.py: factored out the existing
_REJECT_CHARS frozenset, added _normalise_public_url() validator
(requires http/https scheme + non-empty host + no header-injection
chars), _load_dashboard_section() loader (robust to load_config
raising, non-dict shapes), and resolve_public_url() entry point
with the env-overrides-config precedence. A malformed value
silently falls through to ""; the caller treats "" as "reconstruct
from request" so a typo never breaks the login flow.
- hermes_cli/dashboard_auth/routes.py: rewrite _redirect_uri()
docstring to spell out the three resolution tiers; add the
public_url short-circuit before the existing X-Forwarded-Prefix
splicing. Source-level comment notes that X-Forwarded-Prefix is
intentionally ignored when public_url is set so a future reader
doesn't try to "fix" the missing prefix layering.
- cli-config.yaml.example: extend the existing dashboard section
with a public_url block.
- website/docs/user-guide/features/web-dashboard.md: new "Public
URL override" section between the provider configuration and
the OAuth flow walkthrough. Documents the env-vs-config table,
the validation rules, and the `http://` `public_url` ↔ Secure
cookie footgun.
Test coverage — new TestPublicUrlOverride class (8 tests):
- env var overrides request reconstruction (the primary motivating
case)
- config.yaml used when env unset
- env wins over config (precedence pin)
- public_url with a path prefix already baked in (the Q1-a case the
user explicitly chose)
- public_url suppresses X-Forwarded-Prefix layering (defends
against the double-prefix bug)
- trailing slash stripped from public_url (no //auth/callback)
- malformed public_url falls through to reconstruction (six
hostile inputs: javascript:, ftp:, missing scheme, missing host,
quote chars, CRLF injection)
- empty env string doesn't shadow config.yaml entry (CI / Fly
provisioned-but-empty secret case)
Mutation-tested: flipping the precedence in resolve_public_url() trips
exactly test_env_overrides_config_public_url; weakening the validator
(accept any scheme) trips exactly test_malformed_public_url_falls_through_to_reconstruction.
Both other tests in each pair stay green, confirming the suite
discriminates the specific regression each test pins.
Per AGENTS.md, ~/.hermes/.env is reserved for API keys / secrets and
config.yaml is the surface for non-secret configuration. The Nous
Portal plugin previously read HERMES_DASHBOARD_OAUTH_CLIENT_ID and
HERMES_DASHBOARD_PORTAL_URL from the environment only, which forced
local-dev / on-prem operators to put non-secret per-instance
configuration in .env — violating the convention.
Add dashboard.oauth.{client_id,portal_url} to DEFAULT_CONFIG and have
the plugin resolve each setting with env-overrides-config precedence:
1. Env var when set to a non-empty value (Fly.io platform-secret
injection — what pushes per-deploy client_ids without baking
them into the image).
2. config.yaml entry (canonical surface for local dev / on-prem).
3. Plugin default (no provider registered when client_id is empty;
portal_url defaults to https://portal.nousresearch.com).
Empty env values are explicitly treated as unset so a provisioned-but-
not-populated Fly secret can't accidentally shadow a valid config.yaml
entry with an empty string — operators would otherwise lose the gate.
Implementation:
- hermes_cli/config.py: add dashboard.oauth.{client_id,portal_url}
block to DEFAULT_CONFIG with full doc comment explaining the
override precedence and Fly.io rationale.
- plugins/dashboard_auth/nous/__init__.py: add _load_config_oauth_section,
_resolve_client_id, _resolve_portal_url helpers; replace the two
direct os.environ.get() calls in register() with the resolvers.
Update the skip-reason string to mention BOTH surfaces so an
operator looking at the fail-closed bind error knows config.yaml
is a valid alternative to the env var.
- plugins/dashboard_auth/nous/plugin.yaml: update description to
name both surfaces. requires_env stays pointing at the env var
name — it's metadata-only (not used by the plugin loader for
gating) so this is documentation/UX, not enforcement.
- cli-config.yaml.example: append commented dashboard.oauth block
with the same override rationale operators see in code.
- website/docs/user-guide/features/web-dashboard.md: rewrite the
'Default provider: Nous Research' section to lead with config.yaml,
present env vars as operator overrides (Fly.io's primary path).
Updated the example fail-closed bind error to match the new
skip-reason text.
Test coverage — new TestConfigYamlSource class (8 tests) pinning
every tier of the precedence chain:
- config-yaml-only path registers correctly
- both config-yaml fields (client_id + portal_url) honoured
- env var overrides config for client_id (Fly.io critical path)
- env var overrides config for portal_url
- empty env string does NOT shadow config (CI/Fly edge case)
- neither source set → skip with reason mentioning BOTH surfaces
- load_config() raising falls through to env-only path (resilience)
- non-dict oauth section falls through cleanly (typo resilience)
Mutation-tested: flipping the precedence to config-wins-over-env trips
exactly test_env_overrides_config_client_id while the other 7 stay
green, confirming the suite discriminates the order, not just the
sources.
This closes the last item in Teknium's PR review (PR #30156).
Mission-control style deploys reverse-proxy the dashboard at a path
prefix (e.g. mission-control.tilos.com/hermes/* -> :9119) and inject
X-Forwarded-Prefix: /hermes on every request. The SPA mount already
honoured this for asset URLs and the bootstrap __HERMES_BASE_PATH__,
but the OAuth gate didn't:
1. The gate's Location: header to /login and the 401 envelope's
login_url were built bare ("/login?next=..."). Under a /hermes
prefix the browser follows that to mission-control.tilos.com/login
which the proxy doesn't route to the dashboard.
2. _redirect_uri (the OAuth callback URL handed to the IDP) used
request.url_for() which doesn't honour X-Forwarded-Prefix
(Starlette/uvicorn only proxy_headers Host + Proto + For). The
IDP redirects back to /auth/callback instead of /hermes/auth/
callback → 404 in the user's browser.
3. Cookies were set with Path=/ which leaks them to other apps on
the same origin and won't be sent back on requests under the
prefix in the first place.
Fix threads the normalised prefix through every boundary:
* New hermes_cli/dashboard_auth/prefix.py — single source of truth
for X-Forwarded-Prefix parsing. web_server._normalise_prefix
becomes a re-export so the SPA mount, the gate, and the cookies
helper all agree.
* middleware._unauth_response builds login_url = f"{prefix}/login".
* routes._redirect_uri splices the prefix into the path component
of the IDP-bound URL (with full validation of the header).
* cookies.{set,clear}_{session,pkce}_cookie now take prefix="".
Path attribute switches to /hermes when set; cookie name switches
name variant (see below). Every caller passes the request's
normalised prefix.
Cookie hardening (Teknium's lesser-note #1 in the PR review): adopt
the __Host- / __Secure- cookie name prefixes per draft-west-cookie-
prefixes. The variant is selected from (use_https, prefix):
* Loopback HTTP → bare "hermes_session_at" (both prefixes require
Secure, incompatible with HTTP).
* HTTPS, direct deploy (Path=/) → "__Host-hermes_session_at".
Strongest spec: bound to exact origin, no Domain attribute, Secure
required.
* HTTPS, behind a proxy prefix (Path=/hermes) →
"__Secure-hermes_session_at". __Host- forbids Path != "/"; the
explicit Path=/hermes covers same-origin app isolation.
Setter and reader BOTH consult the prefix because the cookie *name*
changes — a reader that looked up the bare name when the setter wrote
__Secure- would never find the value. The reader falls back across
all three variants so a request whose shape changed mid-session (e.g.
post-deploy from no-prefix to /hermes) still picks up the existing
cookie until it expires.
Test coverage:
- tests/hermes_cli/test_dashboard_auth_prefix.py — new file. 11 tests
pinning:
• Location: /hermes/login on the gate's HTML redirect
• 401 envelope login_url carries the prefix
• Malformed X-Forwarded-Prefix is ignored (header-injection
defence; the script-tag value is normalised to empty string)
• _redirect_uri splices /hermes into the path (the property
that prevents the IDP-returns-to-404 failure)
• PKCE cookie uses Path=/hermes + __Secure- when proxied
• Session cookies use __Host- when direct, __Secure- when
proxied, bare on loopback HTTP
• End-to-end round trip with hand-managed PKCE cookie carriage
(TestClient can't simulate a Path=/hermes cookie automatically)
- tests/hermes_cli/test_dashboard_auth_cookies.py — rewritten to pin
each (use_https, prefix) shape produces its expected cookie name,
plus reader-side coverage that __Host- and __Secure- variants are
both recognised.
- Existing tests across middleware / 401-reauth / etc. updated to
match the new cookie names (substring contains instead of
startswith).
Mutation-tested: reverting _unauth_response to build the bare
"/login" URL trips exactly the two tests that pin the prefix
carriage, confirming the suite discriminates the regression.
The gate's _unauth_response set next=<path> on the /login redirect URL,
but nothing downstream read it: render_login_html ignored next=,
auth_login dropped it, and auth_callback read next= from its own query
string — which an IDP never sets on the callback URL (real IDPs only
echo back code+state). The _validate_post_login_target plumbing in the
callback was unreachable on the happy path, so users always landed on
"/" regardless of what they originally requested.
Worse: reading next= from the callback URL was a latent open-redirect
sink, since an attacker could craft /auth/callback?...&next=/admin and
have the server honour it post-auth.
Fix carries next= through the round trip on a server-controlled channel:
1. login_page reads request.query_params['next'] and passes it (post-
validation) to render_login_html.
2. render_login_html threads next= URL-encoded into each provider
button's href, with HTML-attribute escaping as defence in depth.
3. auth_login accepts ?next= as a query param, re-validates, and
appends it as a fourth segment (next=<urlquoted>) in the PKCE
cookie payload alongside provider/state/verifier.
4. auth_callback no longer accepts a next: str = "" query param. It
parses next= out of the PKCE cookie and validates that with the
same same-origin rules. Any attacker-supplied ?next= on the
callback URL is silently ignored — server-only carrier.
Test coverage adds three classes:
- TestAuthCallbackNext drives /login → /auth/login → IDP-bounce →
/auth/callback end-to-end without smuggling next= onto the callback
URL (which is what the previous tests did and why they didn't
catch the bug). Includes test_attacker_callback_next_param_is_ignored
to pin the security property that the URL value is never read.
- TestRenderLoginHtmlNext covers the rendering function at the
unit boundary so a regression that drops next_path is caught
without spinning up the full app.
- TestAuthLoginPkceCookieNext inspects the Set-Cookie header on
/auth/login responses so a regression in cookie encoding is caught
without driving the full round trip.
Mutation-tested: reverting auth_callback to read next= from the URL
trips 3 of 6 TestAuthCallbackNext tests (the safe-path and attacker-
hardening ones), confirming the suite discriminates between the cookie
read and the URL read.
When the OAuth gate is active, start_server runs uvicorn with
proxy_headers=True so the dashboard can honour X-Forwarded-Proto from
Fly's TLS terminator (cookies, redirect URI reconstruction). A side
effect: ws.client.host is rewritten to the X-Forwarded-For value, which
on Fly is the real internet client IP — never loopback. The loopback
peer guard in _ws_client_is_allowed then rejected every WS upgrade in
gated mode (4403 close) even after a successful OAuth round trip and
ticket consumption, silently breaking /api/pty, /api/ws, /api/pub, and
/api/events.
Fix: in gated mode, bypass the peer-IP check. The OAuth gate +
single-use ticket is the auth. The Host/Origin guard in
_ws_host_origin_is_allowed still runs and is what protects against
DNS-rebinding here, not the peer IP.
Loopback mode behaviour is unchanged: the legacy ?token= path is the
only auth there and we don't want LAN hosts guessing tokens.
Regression coverage: TestWsRequestIsAllowedGated pins all four
behaviours — non-loopback peer allowed in gated mode, non-loopback peer
rejected in loopback mode, loopback peer allowed in loopback mode, and
the Host/Origin guard still firing on a rebinding attempt with gated
mode + matching peer.
The stub auth provider's _sign/_unsign helpers joined payload and HMAC
with a 'b"."' separator and recovered the parts via bytes.rsplit. HMAC-SHA256
digests are random bytes, so ~12% of the time the digest contains 0x2E
('.') and rsplit picks the wrong split point -- HMAC verification then
spuriously rejects valid tokens.
test_stub_refresh_round_trips was failing ~25% of the time in isolation
because of this.
Switch to a fixed-length suffix (32 bytes, sliced off in _unsign): no
separator means no collision class. After the fix, 10/10 runs pass.
When these vars are set in the developer's shell, every /api/status call
triggers load_gateway_config() -> discover_plugins() -> the bundled
dashboard_auth/nous plugin auto-registers itself, leaking a provider into
the registry across tests on the same xdist worker. That breaks assertions
like 'auth_providers == []' (loopback) and '== ["stub"]' (gated) in
test_dashboard_auth_status_endpoint.py.
CI never has these set, so this only surfaced locally -- exactly the
hermeticity gap _hermetic_environment is meant to close. Add them to
_HERMES_BEHAVIORAL_VARS so the autouse fixture strips them, and to the
unset list in scripts/run_tests.sh as belt-and-suspenders for direct
pytest invocations.
When jwt.decode raises InvalidTokenError, decode the token a second time
without signature verification (safe — we never trust the values, just
display them) and append the actual iss/aud claims plus our configured
expected values to the error message. Lets operators see config drift
between HERMES_DASHBOARD_PORTAL_URL / HERMES_DASHBOARD_OAUTH_CLIENT_ID
and what Portal is actually emitting without having to hand-decode the
JWT from the browser cookie.
The Nous OAuth provider plugin (plugins/dashboard_auth/nous) is bundled
and auto-loaded — same as before — but previously refused to register
unless BOTH HERMES_DASHBOARD_OAUTH_CLIENT_ID and HERMES_DASHBOARD_PORTAL_URL
were set, then the gate's fail-closed branch told the operator 'install
the default Nous provider'. That message is misleading: the provider IS
installed; it's just unconfigured. And the contract only really needs
the per-instance client_id — the portal URL is the same for everyone
in production.
Three changes:
1. plugins/dashboard_auth/nous/__init__.py:
- HERMES_DASHBOARD_PORTAL_URL is now optional and defaults to
'https://portal.nousresearch.com'. Override only for staging
(portal.rewbs.uk) or a custom deployment. Empty string also
falls back to the default so an empty Fly secret can't point
the dashboard at nowhere.
- Plugin exposes a module-level LAST_SKIP_REASON: str that the gate
reads when no providers register. Cleared on each register() call.
Skip reasons are human-readable and actionable
('HERMES_DASHBOARD_OAUTH_CLIENT_ID is not set. The Nous Portal
provisions this env var…').
2. plugins/dashboard_auth/nous/plugin.yaml:
- requires_env drops HERMES_DASHBOARD_PORTAL_URL; only the client_id
is mandatory. Description updated to reflect this.
3. hermes_cli/web_server.py:
- When the gate fail-closes for 'no providers', it now reads each
bundled plugin's LAST_SKIP_REASON and embeds them in the SystemExit
message. Operator sees the specific config fix needed:
Bundled providers reported these issues:
• nous: HERMES_DASHBOARD_OAUTH_CLIENT_ID is not set. …
instead of the prior generic 'Install the default Nous provider'.
Tests:
- TestPluginRegister rewritten to assert the new defaults +
LAST_SKIP_REASON contents (6 tests, +1 new for empty-string env).
- New gate test test_start_server_surfaces_nous_skip_reason_when_unconfigured.
- test_get_method_is_not_allowed widened to handle the SPA-shell 200
path explicitly — assertion now verifies no JSON ticket leaks
rather than asserting a specific status code (covers all four of
401/404/405/200).
Docs updated: web-dashboard.md's 'Default provider' section now shows
the env-var table with required/optional columns and embeds the
fail-closed error message verbatim so operators can match what they
see at the prompt.
Phase 7 surfaces the OAuth gate state to users.
web/src/components/AuthWidget.tsx (new):
Sidebar widget that fetches /api/auth/me on mount and renders a
compact 'Logged in as <user_id…> via <provider>' row with a logout
icon. Contract V1 (Nous Portal) emits no email/display_name claims,
so user_id is the display value (truncated to 14 chars + ellipsis);
display_name and email fallthroughs are forward-compat for OQ-C1.
Renders nothing on 401 from /api/auth/me — that's the signal the
gate isn't engaged (loopback mode), in which case the widget would
be confusing.
Logout POSTs /auth/logout (which clears cookies + redirects to
/login) then full-page-navigates to /login itself; the SPA's fetch
wrapper doesn't follow that redirect, so the navigation is explicit.
web/src/App.tsx: mounts <AuthWidget /> above <SidebarFooter />.
Component is self-hiding in loopback mode so there's no need for a
conditional mount.
web/src/lib/api.ts:
- getAuthMe() + logout() helpers
- AuthMeResponse type
- StatusResponse gets optional auth_required + auth_providers fields
so the existing StatusPage can render a gated/loopback badge.
hermes_cli/web_server.py: /api/status payload now includes
- auth_required: bool — whether app.state.auth_required is True
- auth_providers: list[str] — registered DashboardAuthProvider names
Lazy-imports list_providers so early-startup status calls don't
crash if the dashboard_auth module is still being set up.
tests/hermes_cli/test_dashboard_auth_status_endpoint.py: 3 new tests
covering the new status fields in both gated and loopback modes plus
a regression that no existing field got dropped from the payload.
The hermes status CLI is unchanged in this commit — that command
tracks model providers + OAuth credentials, not running-dashboard
state. The /api/status endpoint is the canonical place to query
dashboard auth-gate state, consumed by the React StatusPage already.
Contract V1 of nous-account-service PR #180 ships no refresh tokens, so
the original Phase 6 silent-refresh design is replaced with a thinner
'401 → redirect to /login' UX. The dashboard's gated middleware now
emits a structured envelope on any auth failure; the SPA's fetch
wrapper sees it and full-page-navigates the user through re-auth.
hermes_cli/dashboard_auth/cookies.py:
set_session_cookies(refresh_token='') SKIPS writing the
hermes_session_rt cookie. Forward-compat: a non-empty refresh_token
still emits the cookie unchanged, so a future Portal contract that
starts issuing RTs flips the persistence on with no other change.
clear_session_cookies still emits a Max-Age=0 deletion for the RT
cookie so stale cookies from earlier deployments get flushed on
logout / session expiry. Deprecation marker + rationale in
module docstring per the user's docstring-only deprecation pattern.
hermes_cli/dashboard_auth/middleware.py:
_unauth_response now builds a structured JSON envelope for API 401s:
{ error: 'session_expired' | 'unauthenticated',
detail: 'Unauthorized',
reason: <internal>,
login_url: '/login?next=<safe-path>' }
HTML redirects also carry next= so a user landing on /sessions
without a cookie bounces back to /sessions after re-auth.
_safe_next_target validates same-origin: drops protocol-relative
paths (//evil.com), absolute URLs, and any /login or /auth/* loop.
Dead cookies are cleared on the 401 path so the browser stops
replaying invalid tokens.
hermes_cli/dashboard_auth/routes.py:
/auth/callback accepts next= query param and validates via
_validate_post_login_target (same rules as the gate's
_safe_next_target — defence-in-depth because next= survived a full
IDP round trip and attacker-controlled state can re-enter via the
callback URL). Open-redirect attempts land at '/' instead.
web/src/lib/api.ts:
fetchJSON parses the 401 envelope and full-page-navigates to
body.login_url ONLY on the known session-expiry error codes.
Domain-level 401s (e.g. permission errors) bubble up as regular
errors. credentials: 'include' added so cookie auth works for all
fetches routed through this wrapper. sessionStorage.lastLocation is
preserved for future use by AuthWidget / hermes_status.
Test files marked with pytest.mark.xdist_group so the four files that
mutate web_server.app.state.auth_required serialize onto the same xdist
worker — eliminates 'works locally, fails in CI' app-state bleed.
20 new tests in test_dashboard_auth_401_reauth.py:
- set_session_cookies(refresh_token='') skips RT cookie
- clear_session_cookies still emits RT deletion
- 401 envelope shape (unauthenticated vs session_expired)
- dead cookie cleared on invalid-token 401
- login_url carries next= for deep paths
- login loop avoided when path is /login/auth/api-auth
- protocol-relative URL rejected
- _safe_next_target unit tests (accept same-origin, reject loops/abs)
- /auth/callback respects safe next= but rejects open redirects
2 pre-existing tests updated to accept the new /login?next=%2F shape.
Full dashboard-auth suite: 168 passed, 1 skipped (Phase 0 pre-existing).
Phase 5 task 5.2. Four WebSocket endpoints — /api/pty, /api/ws, /api/pub,
/api/events — previously authed with the same constant-time check against
`_SESSION_TOKEN`. Replaced with a single helper that branches on
`app.state.auth_required`:
Loopback / --insecure: legacy ?token=<_SESSION_TOKEN> path (unchanged).
Gated: ?ticket=<single-use> consumed against the
dashboard-auth ticket store.
Critical security property: gated mode UNCONDITIONALLY rejects the
?token= path. A leaked _SESSION_TOKEN value from a log line is not
replayable for WS access in gated deployments.
`_build_sidecar_url` now branches too: loopback uses the legacy token;
gated mode mints a server-internal ticket via mint_ticket() with
pseudo-user 'pty-sidecar' / provider 'server-internal' so audit logs can
distinguish PTY-internal sidecar tickets from browser tickets. PTY
children open /api/pub exactly once at startup so single-use suffices.
Ticket rejections audit-log as WS_TICKET_REJECTED with truncated reason
+ client IP + WS path. Operators debugging 'WS keeps closing' issues see
which endpoint and why.
17 new tests:
- POST /api/auth/ws-ticket: 200 with cookie, 401/302 without, distinct
per call, GET-not-allowed.
- _ws_auth_ok loopback: token accept/reject, missing-token reject,
ticket-param-ignored.
- _ws_auth_ok gated: ticket accept, single-use rejection, unknown reject,
legacy-token-rejected-in-gated assertion, audit-log emission.
- _build_sidecar_url: loopback uses token=, gated uses ticket=, no-bound
returns None.
Phase 5 task 5.1. Browsers cannot set Authorization on a WebSocket
upgrade, so in gated mode the SPA needs an alternative way to bind the
upgrade to its authenticated session.
hermes_cli/dashboard_auth/ws_tickets.py — in-memory single-use ticket
store with 30s TTL. Thread-safe (threading.Lock), token_urlsafe(32)
values, ticket value truncated to 8 chars in error messages for log
hygiene. Module-level state with _reset_for_tests() helper.
hermes_cli/dashboard_auth/routes.py — adds POST /api/auth/ws-ticket.
Auth-required (the gate middleware already attaches Session to
request.state.session). Returns {ticket, ttl_seconds}; emits
WS_TICKET_MINTED audit event with user_id + provider + ip.
hermes_cli/dashboard_auth/audit.py — adds WS_TICKET_REJECTED enum
value for the consume-side rejection event (wired into the WS
endpoints in task 5.2).
11 new tests covering round-trip, single-use, TTL boundary, unknown
ticket rejection, secret-hygiene truncation in error messages, and
concurrent mint+consume from 20 threads.
Bundled, kind=backend, auto-loads. Activates ONLY when Portal-injected
env vars are present:
HERMES_DASHBOARD_OAUTH_CLIENT_ID — agent:{instance_id}
HERMES_DASHBOARD_PORTAL_URL — Portal base URL
Loopback / --insecure operators leave both unset and never see this
plugin register anything. The fail-closed branch in start_server handles
the 'public bind + zero providers' case independently.
Implementation follows nous-account-service PR #180's published OAuth
contract verbatim:
- client_id is per-instance (agent:{instance_id}); the suffix is
cross-checked against the token's agent_instance_id claim as
defense-in-depth (contract C9).
- scope is agent_dashboard:access only (contract C3).
- aud is the bare client_id, no hermes-cli: prefix (contract C2).
- RS256 JWT verification against /.well-known/jwks.json with
5-minute cache (contract C7).
- No refresh tokens in V1: refresh_session always raises
RefreshExpiredError; revoke_session is a no-op (contract C5).
- oauth_contract_version claim: missing → warn + proceed; present
and != 1 → refuse (contract C11, OQ-C2 tolerant treatment).
- redirect_uri validated client-side as defense before bouncing to
Portal; authoritative check is server-side per agent-redirect-uri.ts.
41 new tests covering construction, plugin-entry env gating, start_login
shape, complete_login httpx-mocked happy path + error mapping,
verify_session JWT verification (RSA keypair fixture, full claim-check
matrix), refresh_session always raising, revoke_session no-op.
PyJWT + cryptography are already in the venv (jose was previously
suggested; switched to pyjwt[crypto] since the latter is already
pulled in transitively).
Phase 3, Task 3.5. Three changes to web_server.py:
1. start_server replaces the legacy SystemExit-refusing-to-bind guard
with: if app.state.auth_required and no providers registered, exit
with a clear message; otherwise log the gate-on banner. --insecure
keeps its existing behaviour.
2. uvicorn proxy_headers flag is computed from app.state.auth_required.
Loopback / --insecure keep it False (so _ws_client_is_allowed sees
the real peer for the loopback gate); gated mode flips it True so
X-Forwarded-Proto from Fly's TLS terminator is honoured for cookie
Secure-flag decisions in detect_https().
3. _serve_index no longer injects window.__HERMES_SESSION_TOKEN__ when
the gate is on — the SPA reads identity from /api/auth/me using
cookie auth instead. window.__HERMES_AUTH_REQUIRED__ flag lets the
SPA pick between ticket-auth (gated) and token-auth (loopback) for
/api/pty + /api/ws (Phase 5 will wire this in the React layer).
4 new behavioural tests; loopback regression harness still green.
Phase 3, Tasks 3.2 + 3.3 + 3.4. These three pieces are mutually
dependent so they land together.
middleware.py - gated_auth_middleware engages when app.state.auth_required
is True. Allowlists /login, /auth/*, /api/auth/providers, and static
asset paths; everything else demands a valid session_at cookie. Verifies
by trying every registered provider's verify_session in turn (multi-
provider stack); attaches verified Session to request.state.session.
Returns 401 JSON for /api/* and 302 -> /login for HTML. ProviderError
during verify -> 503.
routes.py - APIRouter with:
GET /login server-rendered HTML
GET /auth/login?provider=N 302 to IDP + PKCE cookie
GET /auth/callback?code,state completes login, sets session cookies
POST /auth/logout clears cookies + best-effort revoke
GET /api/auth/providers public bootstrap endpoint (503 if zero)
GET /api/auth/me verified session as JSON (auth-required)
login_page.py - Inline-CSS HTML template, no React, no JavaScript.
web_server.py - Mounted gated_auth_middleware between host_header and
auth_middleware (FastAPI runs middlewares in registration order: host
check -> cookie auth -> token auth). auth_middleware short-circuits
when auth_required so cookie auth is authoritative in gated mode.
Router is included before mount_spa so the catch-all doesn't swallow
/login or /auth/*.
17 new behavioural tests; loopback regression harness still green.
Phase 3, Task 3.1. Three cookies:
- hermes_session_at: OAuth access token (HttpOnly, TTL = token TTL)
- hermes_session_rt: OAuth refresh token (HttpOnly, 30d max-age)
- hermes_session_pkce: PKCE state + verifier + provider hint (10min)
All SameSite=Lax + Path=/. Secure flag is set ONLY when the request
scheme is https — uvicorn proxy_headers=True (enabled in gated mode at
Phase 3.5) rewrites scheme from X-Forwarded-Proto so Fly's TLS
terminator works.
Phase 2, Task 2.1. Self-contained fake IDP — start_login redirects
straight back to {redirect_uri}?code=stub_code&state=<s> so tests can
walk the OAuth round trip in-process. Tokens are HMAC-signed JSON blobs
(not real JWTs) — enough structure for verify_session to detect tamper
and expiry without pulling in pyjwt.
Lives in tests/ only — never registered as a real plugin. Phase 3's
end-to-end tests import StubAuthProvider directly.
Convention: exp <= now counts as expired (TTL=0 means born-expired)
— matches what Phase 6's silent-refresh test will need.
Phase 1, Task 1.4. Records every auth event (login start/success/failure,
logout, refresh success/failure, revoke, session verify failure, WS
ticket mint) as one JSON object per line. Token-like kwargs (access_token,
refresh_token, code, code_verifier, state, ticket, cookie, Authorization)
are dropped before serialisation so the log never contains live secrets.
Write failures log at WARNING but never raise — auth flows must not fail
because the audit logger broke.
Phase 1, Task 1.3. Mirrors the existing register_image_gen_provider
pattern (plugins.py:531) — wrong-type or duplicate-name registrations
log at WARNING and silently return rather than raising, so a misbehaving
auth plugin cannot crash the host.
Deviation from plan: the plan's draft raised TypeError on non-provider
input; switched to silent-warn to match the established image_gen
convention. Test updated to match.
Phase 1, Task 1.2. Verifies registration order is preserved, duplicate
names are rejected with ValueError, and non-compliant providers fail at
register time (not later when the middleware tries to dispatch).
Phase 1, Task 1.1. New package hermes_cli/dashboard_auth/ contains:
base.py - DashboardAuthProvider ABC with 5 abstract methods
(start_login, complete_login, verify_session,
refresh_session, revoke_session), Session + LoginStart
frozen dataclasses, three exception types
(ProviderError / InvalidCodeError / RefreshExpiredError),
and assert_protocol_compliance() for plugins to call
in their own tests.
registry.py - Module-level register/get/list/clear with a lock.
Nothing reads the registry yet — Phase 2 adds the StubAuthProvider and
Phase 3 wires the gate middleware. The plugin hook lands in Task 1.3.
Phase 0, Task 0.3. start_server now computes should_require_auth(host,
allow_public) and records it on app.state.auth_required BEFORE the
existing legacy SystemExit guard fires. This gives middleware, the SPA
token-injection path, and WS endpoints a consistent read source for
'is the gate active'. The flag is set but no one reads it yet — Phase 3
registers the gate middleware.
Note: 4 pre-existing test failures in tests/hermes_cli/test_web_server.py
(PtyWebSocket) + test_update_hangup_protection.py reproduce on pristine
HEAD and are unrelated to this change (starlette TestClient WS regression).
Phase 0, Task 0.2. Single source of truth for 'is the auth gate active?'.
Reuses the existing _LOOPBACK_HOST_VALUES frozenset so this stays in sync
with the DNS-rebinding host-header check. RFC1918/CGNAT/link-local are
treated as public — exact threat model the gate exists for.
Phase 0, Task 0.1 of the dashboard-oauth plan. Establishes a baseline for
the loopback dashboard's auth surface so future phases can prove they
didn't regress the existing _SESSION_TOKEN flow when adding the OAuth gate.
New opt-in plugin that scans the content passed to write_file / patch /
skill_manage for 25 known-dangerous code patterns — pickle.load,
yaml.load, eval(, os.system, subprocess(shell=True), child_process.exec,
dangerouslySetInnerHTML, innerHTML/outerHTML/document.write/
insertAdjacentHTML, crypto.createCipher (no IV), AES ECB,
TLS verification disabled, XXE-prone xml.etree/minidom parsers,
<script src=//...> without SRI, torch.load without weights_only=True,
GitHub Actions ${{ github.event.* }} injection — and appends a
"Security guidance" warning block to the tool result via the
transform_tool_result hook.
Default behaviour is non-blocking: the file is written and the warning
rides back to the model in the next turn so it can self-correct or
document why the construct is safe. SECURITY_GUIDANCE_BLOCK=1 upgrades
to refusing the write entirely; SECURITY_GUIDANCE_DISABLE=1 is the
kill switch.
Pattern data (patterns.py) is a verbatim Apache-2.0 fork of
Anthropic's claude-plugins-official/plugins/security-guidance/hooks/
patterns.py at commit 0bde168 (2026-05-26). LICENSE and NOTICE
preserve attribution. The Hermes-side plugin glue (__init__.py,
plugin.yaml, README.md, tests) is original work.
Plugin is opt-in like all bundled plugins:
hermes plugins enable security-guidance
Inspired by https://x.com/ClaudeDevs/status/1927108527247... — Anthropic
shipped this as their security-guidance plugin for Claude Code on
2026-05-26 with a measured 30-40% reduction in security-related PR
comments on internal rollout.
What's NOT ported (deferred):
* Layer 2 (LLM diff review on turn end) — would route through main
model by default on Hermes, real money on reasoning models. A
follow-up can wire it to a cheap aux model with explicit opt-in.
* Layer 3 (agentic commit-time review) — agent can run this on
demand via delegate_task today.
* .hermes/security-guidance.md project-rules file — only used by
layers 2/3 upstream.
#33016 added GET /v1/skills + /v1/toolsets on the API server; the
capability flag introduced in this branch was placeholder-False. Flip
to True so capability probers see the truth.
Lets external clients enumerate the agent's skills and resolved toolsets
deterministically over the OpenAI-compatible API server, without standing
up the dashboard web server or sending a chat message and asking the model
to list them.
- GET /v1/skills — list installed skills (name, description, category)
- GET /v1/toolsets — list toolsets resolved for the api_server platform,
with enabled/configured state and the concrete tool names each expands
to
- Both gated by API_SERVER_KEY (same Bearer scheme as every other /v1/*
endpoint)
- /v1/capabilities advertises both new endpoints
Closes the gap a community user just hit asking how to list skills over
REST when only the OpenAI-compatible server is running.
Test plan
- python -m pytest tests/gateway/test_api_server.py -k "Skills or Toolsets or Capabilities" -o 'addopts=' -q
→ 9/9 pass
- python -m pytest tests/gateway/test_api_server.py -o 'addopts=' -q
→ 156/156 pass, no regressions
- E2E: started a real adapter on an isolated HERMES_HOME with a fake
skill installed; curl-equivalent calls to /v1/capabilities,
/v1/skills, /v1/toolsets returned the expected JSON; unauthenticated
calls returned 401 with the configured API_SERVER_KEY.
* remove Vercel AI Gateway provider and Vercel Sandbox terminal backend
Both Vercel-hosted integrations are removed end-to-end. Users on the AI
Gateway should switch to OpenRouter or one of the other aggregators
(Nous Portal, Kilo Code). Users on the Vercel Sandbox backend should
switch to Docker, Modal, Daytona, or SSH.
What's removed:
- `plugins/model-providers/ai-gateway/` provider plugin
- `hermes_cli/vercel_auth.py` Vercel-Sandbox auth helper
- `tools/environments/vercel_sandbox.py` terminal backend
- `ai-gateway` provider wiring across auth, doctor, setup, models,
config, status, providers, main, web_server, model_normalize, dump
- `vercel_sandbox` backend wiring across terminal_tool, file_tools,
code_execution_tool, file_operations, approval, skills_tool,
environments/local, credential_files, lazy_deps, prompt_builder,
cli, gateway/run
- `AI_GATEWAY_BASE_URL` constant, `_AI_GATEWAY_HEADERS` auxiliary-client
header set, run_agent base-URL header/reasoning special-cases
- `[vercel]` pyproject extra and `vercel`/`vercel-workers` from uv.lock
- env vars: `AI_GATEWAY_API_KEY`, `AI_GATEWAY_BASE_URL`, `VERCEL_TOKEN`,
`VERCEL_PROJECT_ID`, `VERCEL_TEAM_ID`, `VERCEL_OIDC_TOKEN`,
`TERMINAL_VERCEL_RUNTIME`
- Tests: deletes test_ai_gateway_models.py and
test_vercel_sandbox_environment.py; scrubs references across 23
surviving test files (no entire tests deleted unless they were
dedicated to AI Gateway / Sandbox)
- Docs: provider tables, env-var reference, setup guides, security
notes, tool config, terminal-backend tables — English plus zh-Hans
i18n parity
- `hermes-agent` skill: provider table entry and remote-backend list
What stays (intentional):
- `popular-web-designs/templates/vercel.md` — CSS design reference,
unrelated to Vercel-the-AI-product
- `x-vercel-id` in `stream_diag.py` headers — generic Vercel CDN
response header, useful diag signal on any Vercel-hosted endpoint
- `vercel-labs/agent-browser` URL in browser config — lightpanda
browser project, different OSS effort
- `userStories.json` historical contributor entry mentioning Vercel
Sandbox — archive, not active docs
Validation:
- 1153 tests in the 22 targeted files pass (`scripts/run_tests.sh`)
- Full repo `py_compile` clean
- Live import of every touched module + invariant check (no
`ai-gateway` in `PROVIDER_REGISTRY`, no `_AI_GATEWAY_HEADERS`, no
`vercel_sandbox` in `_REMOTE_TERMINAL_BACKENDS`)
* test: convert profile-count check from change-detector to invariant
The hardcoded "== 34" assertion broke when ai-gateway was removed.
Per AGENTS.md change-detector-test guidance, assert the relationship
(registry count >= number of plugin dirs) instead of a literal count.
Counts shift when providers are added/removed; that's expected.
* refactor(codex): drop SDK responses.stream() helper; consume events directly
The OpenAI Python SDK's high-level `client.responses.stream(...)` helper
does post-hoc typed reconstruction from the terminal
`response.completed.response.output` field. The chatgpt.com Codex
backend has been observed (today, gpt-5.5) to ship `response.output =
null` on terminal frames, which crashes the SDK with `TypeError:
'NoneType' object is not iterable` mid-iteration.
Carlton's #32963 patched the symptom by wrapping the helper in
try/except and recovering from the same per-event accumulator the SDK
was supposed to populate. This PR removes the helper from the call
path entirely: we now use `client.responses.create(stream=True)` (raw
AsyncIterable of SSE events) and assemble the final response object
ourselves from `response.output_item.done` events as they arrive. The
terminal event's `output` field is never read for content. Same
strategy OpenClaw uses for the same backend.
This makes Hermes structurally immune to the bug class, not patched.
The next time OpenAI ships a shape change to chatgpt.com's terminal
frame, our consumer keeps working because it doesn't read that frame
for content — only for usage/status/id.
Changes
- `agent/codex_runtime.py`: new `_consume_codex_event_stream()` shared
consumer; `run_codex_stream()` uses `responses.create(stream=True)`;
`run_codex_create_stream_fallback()` collapses into a thin alias
since the primary path now does what the fallback used to do.
- `agent/auxiliary_client.py`: `_CodexCompletionsAdapter` uses the
same consumer; old null-output recovery helpers deleted as
unreferenced.
- Tests migrated: fixtures that mocked `responses.stream` now mock
`responses.create` returning a raw iterable. New regression test
asserts the auxiliary path returns streamed items even when the
terminal event's `output` is literally `null`.
Validation
- Live: tested against fresh OAuth on `chatgpt.com/backend-api/codex`
with `gpt-5.5` — response built correctly with `response.output=null`
on the terminal frame, all events consumed, usage/reasoning tokens
propagated.
- `tests/run_agent/test_run_agent_codex_responses.py` +
`tests/agent/test_auxiliary_client.py`: 242 passed.
* test+fix(codex): migrate streaming tests, raise on truncated streams
CI surfaced 10 test failures across tests/run_agent/test_streaming.py
and tests/run_agent/test_codex_xai_oauth_recovery.py — both files had
their own `responses.stream(...)` mocks I missed in the first sweep.
agent/codex_runtime.py: _consume_codex_event_stream() now raises
"Codex Responses stream did not emit a terminal response" when the
stream ends without any terminal frame AND no usable content. This
preserves the signal callers used to get from the SDK's high-level
helper, which they distinguished from "completed with empty body"
in error handling.
Tests migrated:
- test_streaming.py: text-delta callback, activity-touch, and
remote-protocol-error tests all switch from mocking responses.stream
to responses.create returning an iterable of events.
- test_codex_xai_oauth_recovery.py: prelude-error tests are recast as
wire-error-event tests (the new path raises _StreamErrorEvent
directly when the wire emits type=error, which is strictly better
than the old two-phase "SDK RuntimeError → retry → fallback"). The
retry-on-transport-error test moves from responses.stream side-effect
to responses.create side-effect.
Verified live against chatgpt.com Codex with gpt-5.5 — AIAgent.chat()
through the full codex_responses path returns correctly, 319/319
targeted tests passing.
* fix(codex-responses): gracefully recover from invalid_encrypted_content (salvage #10144)
When an OpenAI-compatible Responses API surface accepts an initial
request but later rejects the replayed `codex_reasoning_items`
encrypted blob with HTTP 400 `invalid_encrypted_content`, the
session previously got stuck retrying the same poisoned payload.
Recovery: classify the error as a dedicated FailoverReason, and on the
first hit disable encrypted reasoning replay for the rest of the
session, strip cached items from message history, and retry once.
Changes:
* error_classifier: add FailoverReason.invalid_encrypted_content
branch in _classify_400 (before context_overflow so the messages
that mention 'encrypted content … could not be verified' don't trip
context heuristics), in _classify_by_error_code, and extend
_extract_error_code to peek inside wrapped JSON in error.message and
ignore the bare '400' as a code.
* agent_init: initialize `_codex_reasoning_replay_enabled = True` on
every agent.
* run_agent: add AIAgent._disable_codex_reasoning_replay() helper
that flips the flag and pops cached items.
* codex_responses_adapter: thread a `replay_encrypted_reasoning`
kwarg through _chat_messages_to_responses_input so that when the
flag is False we don't replay codex_reasoning_items.
* transports/codex.py: read `replay_encrypted_reasoning` from params,
thread it into the adapter, and gate the
`include=['reasoning.encrypted_content']` request hint on it.
* chat_completion_helpers: pass the agent's replay flag through to
the transport.
* conversation_loop: in the retry loop, add an
invalid_encrypted_content recovery branch that fires once per
session, only when api_mode == codex_responses, only when replay is
still enabled, and only when at least one assistant message in
history actually carries cached reasoning items (otherwise the 400
has nothing to do with our cache and the normal retry path handles
it).
Tests:
* test_error_classifier: new wrapped-JSON _extract_error_code case;
new TestClassifyApiError cases proving the 400 is retryable with
no fallback, that the broad message match doesn't catch a generic
'parsed' message, and that the error code match is
case-insensitive.
* test_run_agent_codex_responses: end-to-end test of the recovery
branch firing once and disabling replay, plus a sibling test that
proves the branch does *not* fire (and the flag stays True) when
history has no cached reasoning items.
Salvages PR #10144 onto the post-refactor module layout
(error_classifier / codex_responses_adapter / transports/codex /
conversation_loop / agent_init) since the original diff was written
against the pre-refactor monolithic run_agent.py.
* chore(release): map victorGPT in AUTHOR_MAP for #10144 salvage
---------
Co-authored-by: victorGPT <wuxuebin1993@gmail.com>
Add a first-class active-session orchestrator for the Ink TUI:
- list, activate, close, and launch live process-local TUI sessions
- hydrate committed and in-flight output when switching sessions
- dispatch a new prompt session from the +new row with session-scoped model picks
- expose a clickable live-session count in the status chrome
- preserve stable row order while initially focusing the current session
- support mouse hit-testing for floating orchestrator overlays
- add backend and frontend regression coverage for the lifecycle and UI helpers
qwen3.7-max on OpenCode Go rejects the OpenAI-compatible (oa-compat)
format with HTTP 401 but works correctly via the Anthropic Messages
endpoint (/v1/messages with x-api-key auth). Route it the same way
MiniMax models are routed: anthropic_messages api_mode.
Changes:
- hermes_cli/models.py: add qwen3.7-max routing + curated list
- hermes_cli/setup.py: add to setup wizard model list
- hermes_cli/auth.py: update provider comment
- tests: add assertions for qwen3.7-max api_mode routing
'hermes login' was removed (the command now just prints a deprecation
message and exits). The bundled hermes-agent SKILL.md, in-code error
messages, the tip rotation, the proxy adapters, and the docs site
still pointed agents and users at the dead command — so models loading
the skill kept running 'hermes login --provider openai-codex' and
getting a dead-end print.
Replacements use the canonical 'hermes auth add <provider>' surface
(or bare 'hermes auth' for the interactive manager).
Files:
- skills/autonomous-ai-agents/hermes-agent/SKILL.md (+ regenerated docs page)
- hermes_cli/tips.py (tip rotation)
- agent/google_oauth.py (gemini-cli error message)
- agent/conversation_loop.py (nous re-auth troubleshooting line)
- agent/credential_sources.py (docstring)
- hermes_cli/proxy/cli.py + hermes_cli/proxy/adapters/nous_portal.py (proxy auth hints)
- tests/hermes_cli/test_proxy.py (updated assertions)
- website/docs/reference/faq.md, website/docs/user-guide/features/subscription-proxy.md
- zh-Hans i18n mirrors for the above
'hermes logout' is still a live command and is left untouched.
The 'hermes login' stub in hermes_cli/auth.py:login_command() and
the cli-commands.md 'Deprecated' rows are intentionally kept as
the discoverable deprecation surface.
When the gateway processes /reload-mcp, it reconnects MCP servers and
updates the global _servers registry, but cached AIAgent instances in
_agent_cache keep the tools list they were built with. The user had to
also run /new (discarding conversation history) before the agent could
see the new tools — even though /reload-mcp had succeeded.
This patch refreshes each cached agent's .tools and .valid_tool_names
in _execute_mcp_reload after discovery returns, so existing sessions
pick up new MCP tools on their next turn. The slash-confirm gate in
_handle_reload_mcp_command already obtains user consent for the
implied prompt-cache invalidation before this code runs.
Mirrors the equivalent behaviour the CLI already does in cli.py
_reload_mcp. Per-agent enabled_toolsets and disabled_toolsets are
preserved so an agent that was scoped to a subset of toolsets does
not silently gain disabled tools after the reload.
Original diagnosis + initial implementation in #23812 from @fujinice.
The auto-reload watcher half of that PR is intentionally dropped —
users want /reload-mcp to remain explicit.
Co-authored-by: fujinice <45688690+fujinice@users.noreply.github.com>
