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14 commits
| Author | SHA1 | Message | Date | |
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Danny Avila
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49e1e32f3a
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🧺 fix: Funnel MCP Catalog Work Through a Shared Gate (#15429)
* 🧯 fix: Bound MCP Catalog Work Across Requests * 🛑 fix: Reject Saturated MCP Discovery * fix: fairly bound MCP catalog work * test: type catalog snapshot mock arguments * test: assert snapshot deadline forwarding * fix: harden MCP catalog scheduling |
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Dustin Healy
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8fcab7e44f
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🔄 fix: Recover Missing MCP Marketplace Catalogs (#15323)
* fix: recover missing MCP marketplace catalogs * fix: make MCP catalog recovery passive * test: type MCP catalog recovery fixtures * fix: bound and back off passive MCP catalog recovery Passive recovery runs inline on `GET /api/mcp/tools` and its results are request-local by design, so every list request re-dialed the same cold servers with the default connection timeout. Three limits keep that cost proportional to what recovery can actually recover: - Cap the discovery timeout at 5s instead of inheriting the connection default (`initTimeout ?? 30s`); a server configured to connect faster keeps its own shorter limit. - Skip a server the config tier already marked `inspectionFailed`, leaving it to that tier's retry window rather than re-dialing it per request. - Skip a server whose declared `customUserVars` are unset, matching the gate `reinitMCPServer` applies for issue #10969 — connecting without them fails auth, so the attempt is spent for nothing. Servers that still fail discovery enter a one-minute per-process cooldown, which is what stops an unreachable server from being re-dialed by every subsequent list request. A server that recovers clears its own entry, and expired entries are swept at most once per window so the map stays bounded. Skipped servers render exactly as they did before recovery existed: present in the catalog with an empty tool list. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Xr1Dabvdn1mzzyYgpJgU5B * fix: bound passive MCP recovery by deadline, key cooldowns by config Both follow-ups address the same mistake: recovery expressed its own request-level constraints in terms borrowed from other layers. `connectionTimeout` bounds one connection attempt, and `MCPConnectionFactory.discoverToolsInternal` spends it twice — once on the authenticated connection, then again in `attemptUnauthenticatedToolListing` — so capping it bounded no total this layer could reason about. Recovery now enforces its own wall-clock deadline per server with `withTimeout`, which holds however many attempts the factory makes; `connectionTimeout` is left to do only its own job, still honouring a shorter operator `initTimeout`. An attempt abandoned by the deadline disposes its own connection when it settles, and `Promise.race` keeps a handler on it, so a late rejection is not unhandled. A per-request budget now caps total recovery regardless of server count. A server is dialed only if the remaining budget can fund a full deadline; never dialing one is not evidence against it, so a skipped server records no cooldown and a later request reaches it once those ahead are cached or cooling down. Cooldown identity now includes the publication generation — the same effective-config identity the tool caches fence on — instead of just user and server name. Correcting a server's URL or transport keys a new entry, so the refetch the client issues on update is no longer skipped for up to a minute by the previous configuration's failure. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Xr1Dabvdn1mzzyYgpJgU5B * refactor: keep passive MCP recovery stateless and bounded by its own work Reverts the cooldown, request budget and deadline race added in |
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Danny Avila
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fa913148fb
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🔒 fix: Refresh MCP OBO Tokens From the Live OpenID Session (#15334)
* 🧊 fix: Inline-refresh OpenID session tokens at MCP OBO call time Resolves the walk-away failure mode where MCP tool calls using OBO auth fail with "No valid OpenID access token is available for OBO exchange" after a user idles past their access-token lifetime. The strategy-time snapshot on `user.federatedTokens` could expire mid-stream before `resolveOboToken` ran, while `req.session.openidTokens` carried a still- valid (or refreshable) token that nothing read. - New OpenIDSessionRefresh service: per-user single-flighted closure that reads `req.session.openidTokens` at OBO time and inline-refreshes via `openid-client.refreshTokenGrant` when expired (30s skew), persisting via `req.session.save()`. No cookie writes (headers already flushed). - `resolveOboToken` gains a required UpstreamTokenProvider parameter (typed as `() => Promise<OIDCTokens | null>`, reusing the shared shape from @librechat/data-schemas). Compile-time guarantee that every call site is updated. - New `session_refresh_failed` OboTokenResolutionReason distinguishes "session expired and IdP rejected refresh" from "no upstream token ever existed." - `req` threaded through createMCPTool/createMCPTools/createToolInstance to construct the closure with captured request, plus fail-closed guards in MCPConnectionFactory.getOboTokens and MCPManager.callTool when the closure isn't plumbed. - Startup warning in MCPServersInitializer when OBO is configured but OPENID_REUSE_TOKENS is unset (the strategy populating user.federatedTokens is only registered under reuse, so OBO would fail every call without it). Tests: 16 new in OpenIDSessionRefresh.spec.js; obo.spec.ts extended for the new param + error reason; wiring smoke tests in MCPManager, MCPConnectionFactory, MCPServersInitializer, and MCP.spec.js. * 🛡️ fix: Harden OBO inline-refresh against token type and session edge cases - Token-preference asymmetry: live-token reuse and expires_at derivation now strictly gate on the access_token, not the id_token. Added a required `tokenPreference` parameter on isLiveSessionTokenStillValid, buildOIDCTokensFromSession, and createOpenIDSessionTokenProvider so every call site is explicit. Dropped the bogus id_token-exp fallback in performIdpRefresh — id_token TTL is governed by IdP session policy and would mark a short-lived access_token reusable past its real lifetime. - Missing req in /reinitialize route: the manual reconnect endpoint now forwards req into reinitMCPServer, so OBO servers can build a session-aware upstream-token closure instead of failing with missing_upstream_token. - Single-flight key collisions: composed key as tenantId:openidIssuer:openidId:sessionId via getSingleFlightKey. Concurrent calls in the same session still coalesce; separate sessions never share an in-flight refresh, preventing refresh-token rotation from breaking sibling sessions and preventing cross-tenant token crossover when distinct users share an IdP sub. - Opaque access token reuse): persist accessTokenExpiresAt (unix seconds, from tokenset.expires_in) on each refresh AND on initial login / SPA refresh in setOpenIDAuthTokens. New getAccessTokenExp helper falls back to it when the access token isn't a JWT, avoiding redundant inline refreshes for Microsoft Graph and Auth0 default audiences. - Log hygiene: the single-flight key (containing sessionId, openidId, openidIssuer, tenantId) is now SHA-256-hashed in the "Joining in-flight refresh" debug log. Preserves cross-line correlation via a 12-char prefix without leaking credential or PII material. Documented req.session.openidTokens shape contract via JSDoc typedef so the new accessTokenExpiresAt field has a discoverable home alongside the existing accessToken/idToken/refreshToken/expiresAt/lastRefreshedAt. Tests: OpenIDSessionRefresh.spec.js up to 30 passing (added coverage for opaque-token reuse, JWT-access-token-exp fallback, no-id_token-fallback regression, cross-session no-coalesce, persistence on refresh, and a guard against stale accessTokenExpiresAt carryover). AuthService.spec.js adds two cases covering accessTokenExpiresAt persistence on login. mcp.spec.js (route) gains a regression test asserting req flows into reinitMCPServer. * 🔍 fix: Detect OBO-only MCP admin config overrides Admin Config overlays for YAML-defined MCP servers compare only ADMIN_CONFIGURABLE_FIELDS to decide whether to lazy-init a config-tier override. The OBO config field was added after that fingerprint list, so an override that only added or changed `obo` was treated as unchanged YAML and skipped. Include `obo` in the admin-configurable field list and add a regression test for an OBO-only override. * 🔊 fix: Mock MCP OAuth timeout in SDK integration test MCPConnectionFactory.attemptToConnect reads mcpConfig.OAUTH_HANDLING_TIMEOUT when building the OAuth connection timeout. The SDK OAuth integration test mocked mcpConfig without that field, which made the timeout calculation produce NaN and caused the test to fail before the OAuth refresh/start path completed. Add OAUTH_HANDLING_TIMEOUT to the test mock. * ♻️ refactor: Pass OBO upstream-token closure into MCP instead of req Build the OpenID upstream-token provider at the request boundary and thread only the closure through MCP handling, so the MCP service layer no longer receives the raw Express request. The closure still reads/refreshes the live session at tool-call time, preserving the walk-away recovery. - Drop `req`/`capturedReq` from createMCPTools, createMCPTool, reconnectServer, createToolInstance, and reinitMCPServer; forward `upstreamTokenProvider` instead. Closure is constructed in loadTools, loadToolDefinitionsWrapper, and the reinitialize route, where req/res are in scope. - OBO: fall back to user.federatedTokens when the provider yields no live session, so OIDC remote-agent calls (verified bearer, no session) still work. - Inline refresh: mirror a rotated refresh token to the refreshToken cookie via a shared setRefreshTokenCookie helper, guarded by !res.headersSent (no-op on the streaming path; session copy stays authoritative). - Single-flight: hydrate a joining request's own session from the resolved tokens so a later OBO call doesn't replay a rotated-away refresh token. Addresses owner feedback and three review findings. * 🔒 fix: Recover OIDC refresh-token rotation after SSE OBO refresh When an inline OBO refresh rotates the OpenID refresh token after SSE headers have already been sent, the browser refreshToken cookie cannot be updated. Store a short-lived encrypted bridge from the stale cookie token to the rotated token so /api/auth/refresh can recover after express-session loss. Use the signed openid_user_id cookie to load user context for bridge validation, retry only on invalid_grant, and delete the bridge only after the bridged refresh succeeds. * 🔨 fix: hydrate joined OIDC refresh sessions with stable refresh tokens Update single-flight OIDC refresh joiners whenever refreshed access token state changes, even if the IdP keeps the refresh token unchanged. This prevents joined requests from retaining stale accessToken or accessTokenExpiresAt values and redundantly refreshing later in the same run. * 🌉 Persist OIDC refresh-token recovery bridges in MongoDB Store SSE OBO refresh-token recovery bridges in MongoDB instead of process-local memory so /api/auth/refresh can recover after worker restarts or cross-worker routing. Derive bridge expiry from REFRESH_TOKEN_EXPIRY so the recovery window matches the stale refreshToken cookie it repairs, and delete bridges after successful recovery. * 🤝 Coordinate OIDC inline refreshes across workers Add a short-lived Mongo-backed refresh-flight record so concurrent OBO refreshes for the same OpenID session do not redeem the same rotating refresh token on different workers. The winning worker performs the IdP refresh and stores an encrypted result; joiners wait for that result, hydrate their request session, and return without calling the IdP. * ⚓ Keep OpenID marker cookies aligned on inline refresh Refresh token_provider and openid_user_id with the same expiry as the rotated refreshToken cookie when an inline OBO refresh can still write headers. Share the marker-cookie writer with the normal OpenID auth refresh path so the fallback /api/auth/refresh branch continues to recognize valid OpenID refresh tokens after session expiry. * 🔑 fix: include refresh token in OIDC local refresh flight key Key the process-local OIDC refresh coalescing by the current session refresh token, matching the Mongo-backed flight key. This prevents a request with a newly rotated token from joining an older pending refresh and inheriting its failure/result. * 🌉 fix: store OIDC refresh bridge without cookie response Treat missing or non-cookie responses like headers-sent streaming responses during inline OIDC refresh. When the IdP rotates the refresh token and cookies cannot be written, persist a recovery bridge so a later /auth/refresh can recover after session expiry. * 🫙 fix: preserve stale OIDC cookie bridge key Track the refresh token last written to the browser cookie separately from the current session refresh token. When inline OIDC refreshes rotate tokens without a writable response, keep bridging from the browser-stale token directly to the latest session token. * 🙌 fix: keep OIDC bridge recovery success on cleanup failure Make refresh-token bridge cleanup best-effort after a bridged OIDC refresh succeeds. A transient delete failure now logs a warning but does not convert the already-refreshed session and cookies into a 403 response. * 📦 test: Exclude RefreshTokenBridge from tenant-isolation coverage Add RefreshTokenBridge to the tenant-isolation coverage allowlist because refresh bridge lookups run during unauthenticated OpenID refresh recovery. The controller first recovers user context from the signed OpenID marker cookie, then the bridge methods apply explicit user and tenant filters. Ambient tenant isolation would bind this recovery path to request-local tenant context that is not available at the point the stale cookie is being resolved * ⚡ Fix OpenID refresh flight retry and marker hydration Allow failed OpenID refresh flights to be reclaimed immediately instead of pinning transient errors. Preserve the browser refresh-token marker when joined refreshes hydrate session tokens from a shared flight result. Stabilize AuthService tests by isolating mocked module imports from prior suites. * 🛠️ fix: centralize OBO identity scoping Add shared auth identity helpers for app user ids, OpenID subjects, tenant ids, and normalized OpenID issuers. Thread a non-placeholder-visible OBO identity context from the real request user through MCP connection, tool-call, reinit, and refresh paths. Keep tenantId and openidIssuer out of createSafeUser so MCP user placeholders do not expose those fields. Scope OBO token cache and in-flight exchange keys by tenant, issuer, OpenID subject, scopes, and a SHA-256 hash of the upstream assertion. This prevents cross-tenant/cross-issuer collisions and avoids reusing tokens minted from stale rotated assertions. Use the shared identity helpers for OpenID refresh-flight keys and refresh-token bridge recovery records so related OBO refresh paths share the same identity normalization rules. The helper is intended for auth-boundary and credential-cache code, not as a blanket replacement for ordinary app user id ownership checks. * 🛠️ fix: preserve OIDC refresh-token sync on save failures Sync OpenID refresh-token cookie/bridge state before persisting the session so a transient session-store failure cannot lose an IdP-rotated refresh token. Also trigger sync when the session refresh token differs from the browser refresh-token marker, not only when the current grant rotates the token. This lets later writable refreshes repair stale browser cookies left behind by SSE refreshes. Route refresh bridge identity through the shared identity helper with the threaded OBO identity context, falling back to request/user context when needed. Add regression coverage for session-save failures, stale browser cookie repair, non-writable bridge storage, and shared-helper identity fallback. * 🛠️ fix: keep OIDC refresh bridge during recovery grace After successful bridged refresh recovery, re-store the stale-cookie bridge with a short grace TTL instead of deleting it immediately. This lets parallel /api/auth/refresh requests that already sent the stale browser cookie recover before they can observe the first response's Set-Cookie. Retarget the bridge to the refresh token returned by the bridged retry so B-to-C refresh-token rotation remains recoverable. The grace TTL is parsed with math() and defaults to 60s, which shrinks the replay window from the original REFRESH_TOKEN_EXPIRY bridge lifetime to the short recovery grace period. Remove the now-unused explicit bridge delete path from the service and data-schemas method surface. Add regression coverage for grace re-store, identity symmetry, retry failure behavior, and same-key upsert replacement. * 🛠️ fix: fail closed on OBO MCP user identity mismatch Add an OBO-specific guard before MCP tool execution that requires the effective invocation user and captured request user to both have ids and to match. This prevents OBO tool calls from falling back to a separate configurable.user_id identity after request-bound OBO context has already been captured. Keep the existing user id fallback behavior for non-OBO MCP calls. Tests cover mismatched OBO users, missing user ids, and the matching-user path ignoring a conflicting configurable.user_id. * 🛠️ fix: Guard OpenID bridge retry user identity Extract the shared OpenID refresh/user-resolution flow in AuthController so the normal refresh path and bridge-recovery retry use the same grant, claims, issuer, user lookup, and diagnostic logging code. Preserve the existing path-specific behavior: the normal path still owns migration updates and 401 login redirects, while the bridge retry still falls through to the existing 403 invalid-token response. Add a bridge-recovery guard that rejects retry results whose resolved user id differs from the signed openid_user_id cookie before issuing tokens or re-storing the grace bridge. Cover both the successful matching-user recovery and the mismatched-user rejection. * 🛠️ fix: type-safety polish on OBO data layer Replace refresh token bridge query/update Record<string, unknown> usage with typed Mongoose FilterQuery and UpdateQuery definitions. Harden OpenID marker cookie JWT expiry handling by converting refresh expiry milliseconds to integer seconds and rejecting invalid or non-positive durations. Add focused CSRF tests for fractional refresh expiry values and invalid expiry configuration. * 🛠️ fix: Bind OpenID session tokens to authenticated identity Stamp OpenID session token state with the LibreChat user id, OpenID subject, tenant id, and normalized issuer when tokens are stored. Fail closed before OBO inline token reuse/refresh when the session token identity does not match the current authenticated identity, preventing a stale or mixed Express session from supplying another user's upstream assertion. Also validate the normal /api/auth/refresh session-token reuse shortcut against the signed marker-cookie user before returning cached session tokens. Note: sessions created before this change carry no identity stamp and are treated as a mismatch. This is self-healing — the reuse path forces a full IdP refresh (which re-stamps the session) and the OBO path throws, surfacing as a one-time re-authentication for active OBO users at deploy time. The session re-stamps within one session lifetime (SESSION_EXPIRY, default 15 min). * 🛠️ fix: Recover OpenID refresh token drift Prefer the browser refresh-token cookie when it differs from the server-side OpenID session state, and force a real IdP refresh in that case instead of reusing stale session tokens. Store a short-lived refresh-token bridge when inline OBO refresh writes a rotated browser cookie but session persistence fails, so follow-up refreshes can still recover from the old token. Keep the bridge grace TTL centralized in RefreshTokenBridge so both recovery paths use the same env-backed value. Note: drift is measured against the last-synced browserRefreshToken marker, so the SSE path (intentionally stale cookie, authoritative session) does not false-positive. Sessions predating the marker have no browserRefreshToken; for those, drift falls back to comparing the cookie against the session refresh token and prefers the cookie on difference. This is the same self-healing pre-change-session window as the identity binding fix and re-syncs within one session lifetime. Tests cover cookie/session drift selection, reusable-session bypass on drift, bridge storage after session-save failure, and the shared bridge constant wiring. * 🛠️ fix: Harden OBO token caching and expiry handling Reject malformed OBO grant responses before writing them to the exchanged-token cache so a missing access_token cannot poison the cache. Store absolute expires_at values with cached OBO tokens and ignore legacy cache entries without usable expiry metadata. This keeps cached-token freshness based on the token’s real remaining lifetime instead of reusing the original relative expires_in on cache hits. Move OBO expiry normalization and skew helpers into packages/api and use them from both the JS exchange service and the TS MCP resolver. Apply a 30-second safety margin with a one- second floor for short-lived tokens, covered by direct helper tests and caller-level regression tests. Tests: - packages/api: npm run build - packages/api: npx jest src/mcp/oauth/expiry.spec.ts src/mcp/oauth/obo.spec.ts - api: npx jest server/services/OboTokenService.spec.js * 🛠️ fix: Harden OBO refresh-token bridge lookup and indexing Reuse getValidOpenIDReuseUserId for the bridge-recovery user lookup in refreshController instead of re-verifying openid_user_id inline. The shared helper enforces the JWT_REFRESH_SECRET presence check and a strict typeof payload.id === 'string' guard, rejecting tokens whose id claim is present but not a string (e.g. a numeric id) that the inline check accepted. Fail closed on issuer mismatch in getRefreshTokenBridge. Both the stored and the expected issuer are now normalized and compared for equality, so a bridge is recovered only when both sides agree (both absent, or both present and equal after normalization). Previously the check was skipped whenever the stored issuer was absent, allowing recovery across mismatched issuer context. Drop the unused {oldRefreshTokenHash, userId, tenantId, openidIssuer} index and the openidIssuer field on RefreshTokenBridgeQuery. The data-layer filter only queries the 3-field {oldRefreshTokenHash, userId, tenantId} index; the issuer is verified in application code, not the query. Hoist the repeated model accessor into getRefreshTokenBridgeModel. Note: issuer is now load-bearing for recovery. A bridge stored with an issuer recovers only when the lookup supplies a matching issuer; the recovery lookup reads user.openidIssuer via AUTH_REFRESH_USER_PROJECTION (an exclusion projection that retains the field). If a user's persisted openidIssuer is empty while the stored bridge has one, recovery fails closed (falls through to normal re-authentication) until the bridge TTLs out — no security regression. Tests cover invalid signed-cookie payloads bypassing the bridge, both asymmetric issuer-presence cases, issuer normalization before comparison, and an index-alignment assertion guarding against re-adding the dropped index. * 🛠️ fix: Degrade OBO discovery on token resolution failures Catch expected OboTokenResolutionError failures during MCP tool discovery and fall back to unauthenticated tool listing instead of aborting discovery. This keeps discovery aligned with the existing unauthenticated listing behavior while preserving unexpected errors as real failures. Also correct OBO tool-call freshness comment and tighten the OBO trust-check permissions type to the existing role permission shape. Tests: - npx jest src/mcp/__tests__/MCPConnectionFactory.test.ts --runInBand --coverage=false - npx jest src/mcp/oauth/obo.spec.ts --runInBand --coverage=false * 🛠️ fix: tighten OBO tool-call errors, bridge logging, and flight typing Move resolveToolCallUserId inside the tool-call try/catch so an OBO identity mismatch surfaces with serverName/toolName context and the standard tool-call-failed message instead of an opaque bare Error. Raise the refresh-token bridge lookup failure log from debug to warn so transient infrastructure failures on the unauthenticated /api/auth/refresh path are observable, and guard the message access against non-Error values. Replace the unknown+cast in isDuplicateKeyError with a hasErrorCode type predicate so the duplicate-key check reads error.code without an assertion. Preserve real math/isEnabled in the MCPConnectionFactory test mock (mock only processMCPEnv) so mcpConfig timeouts no longer resolve to NaN, fixing the TimeoutNaNWarning that masked slow OAuth retry behavior. * 🧪 fix: Restore the Flight Uniqueness Index and Buffer the Graph Cache TTL Two CI failures on the merge, both in suites this environment cannot run (their MongoDB binary download is blocked). `GraphApiService.spec.js` still asserted the unbuffered TTL. Graph tokens route through the same `getTokenCacheTtlMs` as the OBO and openidStrategy caches, so the entry now expires 30s before the credential does. `openidRefreshFlight.spec.ts` dropped the database between tests, which takes the indexes with it, and Mongoose builds them only once when the model is compiled. Whether the unique `key` index survived into a test was a race with that one-time build. Without it a second `create` inserts instead of raising a duplicate-key error, so every worker believes it won the flight — the mutual exclusion the file exists to prove. Indexes are now rebuilt after each drop, which also makes the reclaim and complete cases reach those paths for the right reason. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01SxKWxwqxAGckYpRsYTqx3F * fix: address OBO review findings * 🔐 fix: Install Bridge Indexes and Carry OBO Through Assistant Recovery Two findings from the Codex pass on |
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Danny Avila
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67b7b441b2
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🛂 feat: Filter Model-Bound Content by Source (#14425)
* feat: introduce optional content protection seam * feat: enforce source-aware content filters * feat: complete source-aware content enforcement * test: activate skill file-text fail-close fixtures * fix: harden source-aware content filters * fix: harden model-bound content filtering * fix: preserve legacy filters and generated files * fix: inspect shared scalar metadata * test: align mocks with current dev dependencies * feat: add persisted content filter safeguards * feat: complete source-aware content filter enforcement * fix: move resume content preflight into TypeScript * fix: close content inspection edge cases * fix: harden content protection boundaries * fix: complete content protection safeguards * test: align persisted memory filter coverage * fix: reconcile content protection with current dev * fix: reconcile content protection with latest dev * fix: close content protection review gaps * fix: enforce source-aware provider boundaries * fix: preserve legacy PII preflight semantics * test: stabilize stored branch preflight fixture * fix: defer agent writes until protected model admission * perf: harden source-aware model-bound filtering * fix: canonicalize provider lineage before validation * fix: satisfy model-bound callback type checks * perf: Bound content protection filtering work * fix: Bound submission array traversal * fix: Stabilize bounded content snapshots * fix: Scope model-bound traversal overflows * fix: Preserve scoped content inspection * fix: Accumulate aggregate traversal scopes * fix: centralize content policy boundaries * test: align deferred tool policy context * test: align controller policy mocks * style: normalize content protection imports * fix: close content policy review gaps * fix: narrow active skill policy config * fix: address content protection review boundaries * fix: retain exact provenance overflow sentinel * fix: preserve literal and scoped provenance updates * fix: narrow persisted edit provenance * fix: isolate exact overflow attribution * fix: centralize stored prompt protection * fix: fail closed on incomplete transcript evidence * fix: align canonical transcript routing * refactor: centralize content policy preflights * fix: isolate upload policy error typing * style: sort policy preflight imports * refactor: centralize content policy boundaries |
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Danny Avila
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eb3b353712
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📡 fix: Publish App-Level MCP Tool Catalogs Without a Reserved Revision (#14858)
* 📡 fix: Publish App-Level MCP Tool Catalogs Without a Reserved Revision Shared MCP servers advertised no tools to agents, so every turn failed with "configured to use MCP tools, but none are available" (#14857). `replaceAppServerTools` returned false whenever a publication carried no `publicationRevision`, but only `refreshChangedTools` reserves one. Every other app-level publisher — the first-connect snapshot, reinitialization, on-demand catalog reads, the retained-catalog restore — was silently dropped. The agent path fails closed on that drop: the skipped write returns null, so reinitialize yields no tools and the turn 503s. Startup hid it. `connectAppServers()` defers the initial refresh and calls `refreshToolList()` itself, which does reserve, so a boot that reaches its MCP servers looks healthy. Only a lazily created app connection — the server not yet up when LibreChat boots, a dropped connection, a cold cache — takes the unreserved path. `ConnectionsRepository` now reserves before its own `tools/list`, matching the list_changed path; a failed reservation publishes unordered rather than failing the connection. Publishers with no pre-fetch reservation point have already fetched by the time they reach the cache, so they take the next revision at write time instead of being discarded. `mergeAppTools` still publishes at revision 0 and stays deferential to a live catalog. * 📡 fix: Bind App Catalog Ordering to the Fetch That Produced It Addresses review feedback on the previous commit: allocating a revision at publish time lets a slow `tools/list` of an old catalog outrank a newer one that reserved after it started, and it would let the retained-catalog restore — which republishes deliberately pre-mutation data — outrank a live catalog. Ordering now travels with the data. `fetchToolsSnapshot` reserves before its first page and returns the ticket on the snapshot, so every app-level publisher reads the revision belonging to the read it is publishing rather than one allocated at an unrelated moment. `fetchOrderedToolsSnapshot` carries the refresh's revision when it defers to one, since that is whose catalog it returns. With the reservation at the single point where app-level tools are read, no publisher can forget it, so `replaceAppServerTools` goes back to refusing an unordered write: a publication that lost its ticket fetched at an unknown time and cannot be ordered. A failed reservation is reported as `orderingUnavailable` rather than swallowed, which keeps the list_changed path retrying instead of publishing a catalog that would be silently dropped, and leaves inspection unaffected by a transient cache outage. `MCPServerInspector.getToolFunctions` becomes `getToolCatalog` and returns the revision with the tools, so there is no variant that quietly discards ordering. * 📡 fix: Retry an Empty App Catalog That Could Not Reserve Ordering Review follow-up. The no-tools-capability branch destructured the reservation result and dropped `orderingUnavailable`, publishing without a revision when the revision store was transiently unavailable. That write is rejected in silence, and unlike the snapshot branch this one returned without reaching `refreshToolList()`, so whatever the server last advertised stayed in place until the connection was recreated or the cache expired. Both branches now route an unreservable catalog through the same retry path. * 📡 fix: Serve Tools Whose Shared Catalog Write Could Not Be Ordered Review follow-up. Only the shared catalog write needs ordering; the tools themselves were just read from the server and are correct to serve. Discarding them because the write could not be ordered is what turns a cache failure into a server that appears to have no tools at all, which is the reported symptom. `updateMCPServerTools` now returns the tools it built when the publication has no reserved revision, instead of null. A superseded write still discards — there another replica holds something newer. Reinitialization also asks the connection to republish under backoff when its snapshot could not reserve ordering, so the shared catalog does not stay cold until something else triggers a refresh. * 📡 fix: Surface a Discarded App Catalog Instead of Debug-Logging It #14857 went a release without a diagnostic because the only trace of a dropped app-level catalog was a debug line no deployment runs. Operators saw agents fail every turn with nothing in the logs to explain it, and the reporter had to read the source to find the cause. A publication discarded because it cannot be addressed or ordered means this server's tools are unavailable to every agent that selected them, and serving an unpublished catalog means every request re-fetches it. Both are warnings now. A superseded write stays at debug: concurrent replicas produce it routinely and the winner already holds newer tools. Tests pin the level, so a later refactor cannot quietly make the failure silent again. * 🧪 test: Pin the Reinitialize Path's Catalog Ordering Reinitialization is the path an agent falls back to when the shared catalog is cold, so it is where #14857 surfaced as "configured to use MCP tools, but none are available". Nothing pinned that it forwards the ordering its snapshot was fetched with, nor that it asks the connection to republish a catalog it could not order. Both assertions fail against the pre-fix source. |
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Danny Avila
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1bccc2bc18
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📡 fix: Refresh MCP Tools After List-Changed Notifications (#14686)
* fix(mcp): handle dynamic tool list changes Co-authored-by: Pascal Garber <pascal@artandcode.studio> * test(mcp): fix CI validation * fix(mcp): keep dynamic tool catalogs live * fix(mcp): harden dynamic catalog lifecycle * test(mcp): use typed startup connection * test(mcp): isolate dynamic e2e fixtures * fix(mcp): refresh tools after reconnect * fix(mcp): close dynamic catalog cache gaps * test(mcp): update OAuth connection mocks * fix(mcp): preserve app snapshot ownership * style(mcp): sort connection imports * fix(mcp): close review race conditions * fix(mcp): preserve cache ownership edges * fix(mcp): harden recovery lifecycle * fix(mcp): guard tool-less app refresh * fix(mcp): fence distributed cache races * fix(mcp): retire stale connection state * fix(mcp): keep tool snapshots authoritative * fix(mcp): fence stale app tool publications * style(mcp): sort repository test imports * test(mcp): mock empty startup publication * fix(mcp): preserve app publication generations * fix(mcp): harden publication recovery races * fix(mcp): address tool catalogs by runtime config * fix(mcp): load scoped catalogs for assistant writes * fix(mcp): harden catalog publication recovery * fix(mcp): serialize forced connection replacement * fix(mcp): serialize ordinary creation with replacements * fix(mcp): harden catalog fallback boundaries * fix(mcp): close lifecycle fencing gaps * fix(mcp): preserve catalog authority on failures * fix(mcp): compensate failed catalog mutations * fix(mcp): fence catalog refresh ordering * style(mcp): sort agent loader imports * fix(mcp): cancel stale connection creation * fix(mcp): fence catalog coordination * fix(mcp): close catalog race windows * fix(mcp): harden cross-pod catalog fencing * fix(mcp): close catalog lifecycle edges * style(mcp): sort assistant imports * fix(mcp): reject stale recovery authority * fix(mcp): restore static catalog on every startup * fix(mcp): order app catalog publications * style(mcp): sort catalog revision imports * fix(mcp): separate catalog allocation and commit fences --------- Co-authored-by: Pascal Garber <pascal@artandcode.studio> |
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Danny Avila
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56175af0b5
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🎟️ fix: Reconcile MCP OAuth Readiness Across Pods (#14629)
* fix: stabilize MCP OAuth readiness across pods * fix: harden MCP readiness review findings * fix: resolve CI type check and terminal OAuth polling * fix: address MCP OAuth readiness review * fix: align MCP OAuth readiness state * test: stabilize MCP OAuth readiness assertion * fix: reject stale MCP OAuth callbacks * fix: close distributed MCP OAuth readiness gaps * style: sort Redis MCP test imports * fix: preserve MCP OAuth polling across rolling pods * fix: finalize distributed MCP OAuth readiness * fix: preserve runtime-detected MCP OAuth * fix: report runtime MCP OAuth readiness * fix: preserve live MCP OAuth classification * style: sort MCP connection imports |
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Danny Avila
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489bc02d4a
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🧭 fix: Fail Closed When Expected MCP Tools Are Unavailable (#14646)
* fix: fail closed when expected mcp tools are unavailable * test: strengthen MCP handoff coverage * fix: clarify unavailable MCP tool guidance * fix: preserve MCP discovery for empty catalogs |
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Danny Avila
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8af6414e13
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🪟 fix: Surface MCP Initialization Errors (#14529) | ||
adamscross04
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4182f9094f
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🃏 fix: Attach Request-Scoped MCP Servers From the Builder via the mcp_all Wildcard (#14177)
* fix: Attach Request-Scoped MCP Servers from the Agent Builder via mcp_all Follow-up to #14148 / #14074: request-scoped MCP servers (runtime {{LIBRECHAT_BODY_*}} placeholder headers) defer their connection on reinitialize, so their tools are never enumerable in the agent builder and the attach flow (which waits for isConnected && hasTools) silently attaches nothing. The runtime already resolves an mcp_all (sys__all__sys_mcp_<server>) tool entry into the server's full tool set at chat-turn time - the builder just never writes that token. - reinitMCPServer returns connectionDeferred: true on the deferred branch so clients can distinguish it from a plain empty success (server configs are sanitized client-side, so the response is the only reliable signal) - /mcp/:serverName/reinitialize forwards the flag; data-provider mutation type includes it - McpSection attaches [mcp_server, mcp_all] tokens on a deferred connect (idempotent) and shows a "tools are resolved at runtime" hint instead of "no tools yet" when wildcard-attached - selectors: mcpAllToken() helper beside mcpServerToken() Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix: address review — deferred attach via init state; strip stale wildcard Two review findings: 1. Servers with customUserVars route Connect through the config dialog, whose save path calls initializeServer inside the manager — the McpSection never awaits that response, so the deferred attach was unreachable. Record connectionDeferred in the shared per-server init state (MCPServerInitState) on every initialize attempt and key the attach off that state in the auto-select effect: one attach site now covers both the direct Connect and the config-dialog path. 2. updateFormTools kept an existing mcp_all wildcard when rewriting a per-tool selection, so a server that later exposes a normal tool list would still grant every tool at runtime while the UI showed a subset. The wildcard is now stripped unless explicitly re-passed, making per-tool selection always supersede it. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * fix: address review — stale deferred state; fold wildcard into display Second review round: 1. connectionDeferred persisted across attempts, so a later Connect click could attach the wildcard from a stale flag before the new attempt reported. Reset it at the start of every initializeServer call, and clear it before routing into the customUserVars config dialog (resetConnectionDeferred) so only the current attempt's outcome can trigger the auto-attach effect. 2. With a wildcard attached and the server's tools later enumerable, the dialog showed every tool unchecked while runtime granted all of them. getSelectedTools now folds the wildcard into the display (all tools selected); any selection interaction rewrites the form with concrete ids and drops the wildcard, converting the attachment on first touch. Also sorts imports in McpSection.tsx (CI sort-imports gate). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com> |
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Danny Avila
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f3692b5d43
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⏳ fix: Defer MCP Connection for Request-Scoped Placeholders on Reinitialize (#14148)
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Co-authored-by: fe2131-art <232701181+fe2131-art@users.noreply.github.com> |
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Danny Avila
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49859c04a2
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🗄️ fix: Gate Request-Scoped MCP Servers Out of Persistent Tool Cache (#13672)
* 🗄️ fix: Gate Request-Scoped MCP Servers Out of Persistent Tool Cache PR #13626 established that request-scoped MCP servers (runtime OPENID/GRAPH/BODY placeholders) must not use the persistent 12h tool cache, but only gated three of five touchpoints. The panel endpoint still back-filled the cache and the OAuth callback still wrote to it, while agent loading read those entries ungated — pinning ephemeral model-spec/agent toolsets to stale definitions for up to 12h. Centralize the invariant in createMCPToolCacheService: a getServerConfig resolver dep gates both writers and a new service-owned getMCPServerTools read, so every current and future caller is covered. Callers that already hold the parsed config pass it to skip resolution; the per-call skipCache flag and duplicated call-site gates are removed in favor of the single config-based mechanism. Resolution failures fail open to preserve prior behavior. * 🩹 fix: Address Codex Review on Cache Gating - Repair getCachedTools.spec.js, which destructured the relocated getMCPServerTools directly from the module; its coverage now lives in the service-level tools.spec.ts. - Resolve the merged (Config-tier-aware) server config in the OAuth callback before writing tool definitions, so the cache gate detects request-scoped servers supplied via admin Config overlays that the base registry lookup cannot see. - Discover tools actively for request-scoped servers in the panel endpoint via ephemeral reinitialization: such servers have no stored app/user connections, so the previous getServerToolFunctions fallback returned an empty toolset once the cache read was gated. * 🧵 fix: Address Second Codex Review on Cache Gating - Resolve the merged server config before the OAuth callback reconnects, so the connection itself uses Config-tier overlays rather than only the subsequent cache write. - Pass Config-tier candidates into the panel's request-scoped discovery, matching the reinitialize route: reinitMCPServer forwards configServers (not the provided serverConfig) to its OAuth discovery fallback. - Document the accepted read-path trade-off: the gate resolver sees base configs only, all writers pass merged configs, so a pre-gating or overlay-divergent entry survives at most one cache TTL. * 🚏 chore: Rework Cache Gating for BODY-Only Request Scoping After #13673 narrowed requiresEphemeralUserConnection to BODY placeholders, the central gate follows the predicate unchanged, but the panel's active discovery no longer serves a purpose: the only remaining request-scoped class cannot connect outside a chat turn, so the reinitialization attempt would always fail at the missing-body check. Remove that path; OpenID/Graph servers are persistent user-scoped again and flow through the stored-connection and cache lookups as before. Flip test fixtures that used OPENID placeholders to denote request-scoped configs over to BODY placeholders. * 🪟 fix: Check Config Overlays in Agent-Loading Cache Reads The cache service's registry resolver sees only base YAML/DB configs, so a BODY placeholder introduced by a request-tier Config overlay was invisible to the gate on the agent-loading read path: model-spec and ephemeral-agent expansion could read a leftover persistent entry and pin stale concrete tool names instead of the mcp_all fresh-discovery path. Check the raw overlay candidate inline in loadEphemeralAgent and loadAddedAgent — a pure placeholder scan with no extra IO — and skip the cache read when the overlay makes the server request-scoped. Widen UserScopedConnectionConfig so raw (pre-inspection) configs qualify for the scoping predicates, which only check key presence. * 🧪 test: Guard Run-Scoped MCP Definition Handoff Boundaries The original ClickHouse breaker storm regressed precisely at field pass-through boundaries that unit tests of each end could not see: initializeAgent dropping mcpAvailableTools from its destructure, and the agent tool context losing it on the way into ON_TOOL_EXECUTE. Add direct guards on both hops: the loadTools result must surface on the initialized agent, and the captured toolExecuteOptions closure must forward it to loadToolsForExecution. |
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Danny Avila
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7eafe317cc
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🗝️ fix: Resolve MCP Runtime User and Request Placeholders (#13626)
* fix: Resolve MCP Runtime User Placeholders * fix: Harden MCP Runtime Placeholder Connections * fix: Update MCP Source Tag Test Expectations * fix: Complete MCP Runtime Placeholder Reinit * fix: Harden MCP Request Scoped Runtime Configs * fix: Align MCP OAuth Tests With Domain Policy * fix: Harden MCP Runtime Resolution Edges * fix: Avoid MCP Runtime Reprocessing Pitfalls * fix: Reuse MCP Request Scoped Tool Discovery * fix: Validate MCP Body Runtime Fields * 🛡️ refactor: Harden runtime placeholder edges from review - Warn at inspection when a trusted server URL contains runtime placeholders but no domain allowlist restricts the resolved target - Document the three resolution sites that must stay in sync so the validated config always matches the connected one - Note the per-call connect cost of ephemeral GRAPH/BODY connections - Drop the no-op removeUserConnection in callTool's ephemeral cleanup; ephemeral connections are never stored, and removing the entry could orphan a still-connected cached connection after a config change * 🪪 fix: Cover oauth_headers, Graph URL gating, and request-scoped reconnects Address Codex review: - Resolve runtime placeholders in oauth_headers (processMCPEnv + Graph pre-pass) and include the field in placeholder detection, so OAuth discovery/token requests no longer send literals; consolidate the detection field lists into one helper - Defer the early domain gate when the URL still carries a Graph placeholder (resolved async later); the authoritative assertResolvedRuntimeConfigAllowed check still enforces policy - Bypass the 10s reconnect throttle for request-scoped servers, which re-fetch tool definitions on every message by design |
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Max
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1746153c17
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🪬 fix: Skip MCP Tools When Required Custom User Vars Are Unset (#13152)
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* fix: skip MCP tools when required customUserVars are unset (#10969) * fix: whitespace-only values Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> * fix: guard MCP registry lookup and unknown server config in customUserVars gate * fix: fail closed on MCP registry lookup errors --------- Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com> Co-authored-by: Danny Avila <danny@librechat.ai> |