LibreChat/helm/librechat
Danny Avila e7f1838515
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feat: Reliable Interrupt & Steer Escalation and Recovery (#14558)
* feat: surface interrupt-steer escalation on waiting messages

The interrupt & steer feature shipped reachable only through the
composer chord, the send-button hovercard, and the composer button; a
message already waiting (queued for after the run, or steered and
parked at the next tool boundary) had no path to it. Both waiting
surfaces now carry one:

- Queued rows get an icon-only ZapOff escalation button beside the
  existing Steer primary. It routes through sendQueuedNow, which now
  takes a preempt option on its live-run path. The tooltip teaches the
  composer chord, derived through resolveComposerKeyDown so a rebound
  or yielded chord is never advertised.
- In-flight steer bubbles get an "Interrupt now" overflow entry with
  the same race rules as Edit: reclaim first, and only a `reclaimed`
  outcome resubmits (via retrySteer with preempt, swapping the chip
  for an interrupting one). `applied` and run-ended-mid-reclaim
  outcomes stop at the existing informational toasts, so the words can
  never land twice. Not offered on a steer already preempting.
- Every during-run overflow menu gains an "Always interrupt instead"
  toggle for steerInterruptsByDefault, next to the existing steer/queue
  default toggle. MenuEntry supports disabled for the new entries.

Only one interrupt can be unresolved at a time: while one preempt is
pending (or the run is paused on approval, where the server 409s),
every escalation control disables instead of racing the same seal.

Ten new tests across both surfaces; 381 green in the affected suites.

* fix: lock escalation across its reclaim window, keep the paused control visible, label as steer

Codex round 1, all three findings.

P2, escalation race. The single-interrupt invariant had a window between
clicking "Interrupt now" and the reclaim resolving, where no preempt
chip existed for the chip-derived gate to see: two bubbles escalated
back-to-back could both resubmit. A shared escalating flag (Jotai,
per-conversation) now covers the window and disables every escalation
control on both surfaces, and a fresh recheck before resubmitting
catches an interrupt armed elsewhere meanwhile (composer chord, queued
row); those words re-home to the queue with an informational toast
instead of breaking the invariant.

P2, unreachable paused state. canSteer is defined as
hasRealConvoId && !pausedOnApproval, so gating the button on canSteer
removed it exactly when it was meant to render disabled; the test only
passed on an impossible stub combination. The render gate is now
duringRunActive && (canSteer || pausedOnApproval), and the test uses the
real invariant.

P2, label semantics. "Interrupt & send now" borrowed the name of the
hard-abort action; this one preserves the partial answer and steers.
Renamed to "Interrupt & steer now" (com_ui_interrupt_steer_now).

Both behavior fixes counterfactually verified; 384 tests green across
the affected suites.

* fix: disable bubble escalation while the run cannot accept a steer

Codex round 2, one P2. Answer mode (ask_user_question) sets
duringRunActive false while pausedOnApproval stays false, since that
flag only detects approval-bearing tool calls. The bubble's escalation
entry stayed enabled there, so clicking it cancelled a healthy waiting
steer and the preempt resubmission bounced off RUN_PAUSED, degrading
the words to the queue. The entry now also disables on
!duringRunActive, matching the queued-row control's gate.

Counterfactually verified: reverting the gate fails the new
answer-mode test.

* fix: recheck live run state after the reclaim, not just at the click

Codex round 3, one P2, and it is the round-1 recheck principle applied
one level deeper: the entry-time disable cannot see a run that pauses
(tool approval, answer mode) while the reclaim round-trip is in flight,
and the .then closure held the render's stale steering controls, so the
resubmit would fire into a RUN_PAUSED rejection after the reclaim had
already surrendered the steer's boundary slot.

The escalation continuation now reads the LIVE controls through a
latest-ref: if the run can no longer accept a steer, the words re-home
to the queue with an informational toast instead of resubmitting, and
the resubmit itself also goes through the live controls.

Counterfactually verified: reading the stale closure instead of the ref
fails the new mid-reclaim pause test.

* refactor: make escalation one atomic server-side arm, in place

Codex round 4: four P2s, every one an interleaving of the same window —
escalation as reclaim-then-repost is a compound, non-atomic operation
whose continuation must revalidate the world (FIFO position lost, ref
assigned too late, no run fence, competing bubble actions). Rounds 1-3
patched that window with a lock and rechecks; round 4 shows the window
itself is the defect, so this removes it instead of guarding it again.

Escalation is now POST /chat/steer/arm: the server flips preempt on the
EXISTING queued item in one atomic store op (new IJobStore.armSteer; a
decode-patch-encode LSET Lua on Redis, an in-place mutation in memory),
fenced to the validated generation and refused once the queue closes.
The handler mirrors the steer POST's preempt contract exactly: durable
flag gated on the owner's recorded capability, volatile requestPreempt
fire-and-forget because the durable flag is the truth resume/handover
re-arm from.

By construction this resolves all four findings: FIFO survives (the
item never moves; the whole queue still drains in instruction order at
the seal), there is no continuation to hold stale controls, the store
op is fenced to the original run, and a competing Edit/Queue/Cancel
either beats the arm (armed:false, chip untouched) or operates on the
armed item, whose cancel already disarms.

The client escalation entry becomes one mutation: armed:true relabels
the chip in place (same steerId, same position), PREEMPT_UNSUPPORTED
and lost races toast honestly, and the round 1-3 machinery — the
escalating lock atom, the latest-ref, the post-reclaim rechecks and
their two toast strings — is deleted rather than extended.

Verified: 7 new handler tests on the real in-memory manager (including
FIFO preservation and the stale-generation fence), 2 Redis integration
tests against real Redis (in-place arm keeps order and every field;
missing/stale/closed all refuse), client suites 396 green.

* fix: decide capability inside the atomic arm, neutralize the lost-race toast

Codex round 5, both findings, both edges of the new arm design rather
than its mechanism.

P2, capability TOCTOU. A HITL resume on a rolling deploy rewrites
preemptCapable for the SAME generation, so the handler's read could go
stale between validation and the flag flip, arming a steer the live
owner cannot seal. armSteer now returns armed | missing | incapable,
with the owner's live capability part of the same atomic predicate as
the generation fence (HGET preemptCapable inside the Lua; the flat job
field, not a metadata blob — the in-memory store reads the same field).
The handler's pre-check is deleted rather than kept alongside; the
store predicate is the single source. New handler test rewrites the
capability after queueing and expects PREEMPT_UNSUPPORTED with the item
left unflagged; the Redis guards test now asserts the incapable refusal
against real Redis.

P2, ambiguous toast. armed:false covers injected, cancelled, re-homed,
and run-over alike, so telling the user the message "already reached
the agent" claimed one specific outcome. The lost-race branch now uses
a neutral message (com_ui_steer_arm_lost_race) and defers to the events
for what actually happened.

* fix: flip the escalation lock synchronously before the arm request

Codex round 6, one P2. Round 4 deleted the escalating flag along with
the reclaim continuation it guarded, but that left the one-interrupt
gate blind during the arm request's own round trip: the chip-derived
check cannot see an arm until its response relabels the chip, so on a
slow connection two bubbles could both arm before either response
landed. Double-arm is harmless server-side now (the run seals once and
drains the whole queue in order), but every escalation control
advertises "one interrupt at a time" by disabling, and the controls
must tell the truth.

The per-conversation escalating flag returns as a pure UX gate: set
synchronously at click, before the mutation, cleared on settlement, and
folded into interruptPending on both surfaces. Unlike its round 1-3
ancestor there is no continuation behind it to guard and no recheck to
pair with it.

Counterfactually verified: without the synchronous set, the two-bubble
race test arms twice. 207 tests green across the Chat Input suites.

* test(e2e): cover escalation of waiting messages through the real seal

Three mock-harness tests on E2E_SLOW_REPLY, a 160-chunk stream with no
tool boundary, so an in-thread steer part can ONLY come from a genuine
mid-stream seal — which makes each test a behavioral proof rather than
a UI check:

- Queued row escalation: the ZapOff button turns a waiting queued
  message into a preempt-armed steer (202 echoes preempt: true) that
  seals and injects, where the sibling steering.spec test proves the
  unescalated path waits for run end instead.
- Bubble in-place arm: an ordinary steer (202 with no preempt echo)
  waits as a bubble, POST /chat/steer/arm answers armed: true, the
  bubble relabels in place (same single bubble, same text, escalation
  no longer offered on reopen), and the armed steer seals mid-stream.
- Always-interrupt toggle: flipped from a waiting row's overflow menu,
  plain Enter now produces a preempt: true steer that seals in the SAME
  run, and the menu offers the way back. An afterEach clears the
  localStorage preference so a mid-test failure cannot leak
  preempt-by-default into the rest of the serial suite.

All three verified locally through the full harness (real backend, mock
LLM, seeded DB): 3 passed in 27s.

* feat: dedicated escalation arrow + shortcut, menu split into actions and preferences

The escalation was still half-hidden: the bubble only offered it inside
the overflow menu, and the tooltip taught the composer chord, which does
a different thing (interrupts with typed text, not this chip). Three
changes make it a first-class command:

- A shared EscalateNowButton (circular arrow, ghost-bordered like the
  composer's interrupt control) is always visible on BOTH surfaces:
  beside each queued row's Steer primary and on every waiting steer
  bubble next to its menu. It disappears once a steer is interrupting.
- A dedicated registry shortcut, escalateSteer (Cmd/Ctrl+Shift+.),
  editing-allowed and rebindable like every other action. Deliberately
  NOT an Enter chord: the composer owns every Enter chord, and the
  yield design rests on no default binding using Enter besides submit.
  Its handler clicks the newest enabled arrow control (bubbles beat
  queued rows), so the shortcut can never diverge from the button, and
  the arrow's tooltip teaches THIS command via the registry display.
- The overflow menus separate one-off actions from sticky behavior
  changes: Edit, Cancel, Queue, then a smaller "Preferences" section
  holding the queueing and always-interrupt toggles, each with the
  standard InfoHoverCard reusing the Settings panel's descriptions.
  "Interrupt & steer now" leaves the menu entirely.

386 client tests green, including a menu-structure test locking the
order and the absence of the escalation entry; bubble escalation tests
drive the visible arrow. The e2e spec's bubble test now clicks the
arrow, and a fourth test drives the dedicated shortcut end to end
through a real mid-stream seal.

* style: bind the escalation arrow to its message (variant A anatomy)

Two same-weight circles in a row read as one control group, leaving the
arrow's ownership ambiguous, and a floating arrow stops meaning anything
once several messages stack. The shared control now carries variant A's
anatomy: a thin divider binds a small SOLID arrow (filled, inverted) to
the message region on its left, and the menu ellipsis stays a bare
glyph, so the two affordances can no longer blur together — and the
divider+arrow pairing repeats cleanly per chip at N messages.

* chore: drop the unused within import CI lint caught

* fix: advertise the escalation shortcut only while the control is live

Codex on the e2e head, one P2: the tooltip appended the chord hint even
while the button was disabled, advertising a shortcut that does nothing
during an approval pause. The flagged control (InterruptNowButton) was
since replaced by the shared EscalateNowButton, which inherited the
pattern; the successor now omits the chord whenever the control is
disabled, matching the rule the during-run hovercard already follows.

* fix: harden steer escalation lifecycle and recovery

* test(e2e): disambiguate accessible steer preferences

* test: align abort persistence coverage with prerequisites

* chore(i18n): remove obsolete steer race message

* chore: normalize imports across steering changes

* test: exercise stream integration on Redis Cluster

* test: scope HITL checkpoints to generation

* test: fix cluster cleanup and locale policy

* fix: keep escalation visible during ask pauses

* fix: fence recovery downgrade and stale predecessors

* fix: require generation owner abort acknowledgement

* fix: validate delayed preempt arms

* test: align final escalation fixtures

* fix: preserve in-memory predecessor abort handoff

* fix: restore controls for recovered queued messages

* test: cover recovered queue controls

* fix: close final steering review gaps
2026-07-31 20:07:56 -04:00
..
examples ☸️ feat: Helm hostAliases Support For Custom DNS Mappings (#9857) 2025-09-27 10:49:36 -04:00
templates 🪭 feat: support per-run central langfuse export suppression (#14207) 2026-07-12 08:03:27 -04:00
tests 🪭 feat: Add opt-in Langfuse fanout gateway + collector (#13872) 2026-06-26 11:26:39 -04:00
.helmignore 📊 feat: Improve Helm Chart (#3638) 2025-05-17 15:52:16 -04:00
Chart.yaml v0.8.7 (#13907) 2026-06-24 14:49:32 -04:00
DNS_CONFIGURATION.md 🌐 feat: Helm DNS Configuration Support for Traffic Redirection (#9785) 2025-09-23 10:41:58 -04:00
readme.md feat: Reliable Interrupt & Steer Escalation and Recovery (#14558) 2026-07-31 20:07:56 -04:00
values.yaml 🪭 feat: Add opt-in Langfuse fanout gateway + collector (#13872) 2026-06-26 11:26:39 -04:00

LibreChat Helm Chart

This Librechat Helm Chart provides an easy, light weight template to deploy LibreChat on Kubernetes

Variables

In this Chart, LibreChat will only work with environment Variables. You can Specify Vars and Secret using an existing Secret (This can be generated by creating an Env File and converting it to a Kubernetes Secret --from-env-file)

Setup

  1. Generate Variables Generate CREDS_KEY, JWT_SECRET, JWT_REFRESH_SECRET and MEILI_MASTER_KEY using openssl rand -hex 32 and CREDS_IV using openssl rand -hex 16. place them in a secret like this (If you want to change the secret name, remember to change it in your helm values):
apiVersion: v1
kind: Secret
metadata:
  name: librechat-credentials-env
  namespace: <librechat-chart-namespace>
type: Opaque
stringData:
  CREDS_KEY: <generated value>
  JWT_SECRET: <generated value>
  JWT_REFRESH_SECRET: <generated value>
  MEILI_MASTER_KEY: <generated value>
  1. Add Credentials to the Secret Dependant of the Model you want to use, create Credentials in your provider and add them to the Secret:
apiVersion: v1
kind: Secret
. . . .

  OPENAI_API_KEY: <your secret value>
  1. Apply the Secret to the Cluster

  2. Fill out values.yaml and apply the Chart to the Cluster

Admin Panel SSO

Set librechat.adminPanelUrl to the admin panel base URL used for OAuth/SSO redirect, whether the admin panel is deployed on a separate origin or on the same origin under an admin subpath.

It may include a path, but it should not end with a trailing / because LibreChat appends /auth/... callback paths.

librechat:
  adminPanelUrl: https://admin.example.com/admin

This renders ADMIN_PANEL_URL for LibreChat's admin OAuth flow. For OpenID SSO, also register this LibreChat callback URL with your identity provider:

https://<librechat-domain>/api/admin/oauth/openid/callback

Generation protocol rollout

Redis-backed generation streams use protocol v1 by default during the first rollout of a v2-capable image. This keeps a rolling deployment compatible with replicas that still run the previous Redis queue, checkpoint, and recovery scripts.

After every LibreChat replica is on the v2-capable image and all active generations owned by the old image have drained, set librechat.configEnv.GENERATION_PROTOCOL_VERSION="2" in a second rollout. Keep the new image in place until v2 generations have drained; an older image cannot safely operate on their Redis state. In-memory generation streams do not share state across replicas and negotiate v2 without this cutover.

Langfuse Fanout

The chart can optionally deploy a Langfuse fanout gateway with an internal OpenTelemetry Collector sidecar. The gateway handles Langfuse media fanout and proxies traces to the collector; the collector forwards tenant-scoped Langfuse traces to both a central Langfuse project and the tenant Langfuse project. It is disabled by default.

When enabled, the chart also sets LANGFUSE_FANOUT_ENABLED and LANGFUSE_FANOUT_COLLECTOR_URL for the LibreChat app unless those values are already provided in librechat.configEnv.

Set librechat.configEnv.LANGFUSE_FANOUT_TENANT_EXPORT_DISABLED=true to keep central trace export flowing through the fanout gateway while disabling tenant trace and score export. When omitted, false, or blank, tenant export remains available if tenant keys and a known destination are configured.

Langfuse tenant base URLs are selected from the startup-configured destination map rendered into LibreChat and the fanout gateway. Tenant API keys can still be added through tenant app configuration at runtime without restarting either component. The internal collector provides trace memory limiting, batching, tenant routing, and removal of LibreChat-only routing attributes before export.

The fanout gateway stores one-time media upload plans in Redis so media create and byte-upload requests can land on different gateway replicas. Set langfuseFanout.redis.uri for an external Redis service, or enable the bundled Redis chart with redis.enabled=true and let the chart derive the internal URI. Scale the gateway manually with langfuseFanout.replicaCount; the chart does not create a fanout HPA. The internal collector receiver is bound to 127.0.0.1:4319 by default because only the gateway sidecar should send traces to it.

The gateway exposes Prometheus metrics at /metrics. Configure langfuseFanout.metrics.secret.name and .key to pass a bearer token secret to the gateway; if omitted, /metrics returns 401. Use langfuseFanout.service.annotations for scrape annotations when your cluster uses annotation-based discovery. The gateway container also has configurable /healthz liveness and readiness probes under langfuseFanout.

See otel/langfuse-fanout/README.md for the central Langfuse secret and values example.