LibreChat/api/server/controllers
Danny Avila 3bf715e05e
♻️ refactor: On-demand MCP connections: remove proactive reconnect, default to available (#11839)
* feat: Implement reconnection staggering and backoff jitter for MCP connections

- Enhanced the reconnection logic in OAuthReconnectionManager to stagger reconnection attempts for multiple servers, reducing the risk of connection storms.
- Introduced a backoff delay with random jitter in MCPConnection to improve reconnection behavior during network issues.
- Updated the ConnectionsRepository to handle multiple server connections concurrently with a defined concurrency limit.

Added tests to ensure the new reconnection strategy works as intended.

* refactor: Update MCP server query configuration for improved data freshness

- Reduced stale time from 5 minutes to 30 seconds to ensure quicker updates on server initialization.
- Enabled refetching on window focus and mount to enhance data accuracy during user interactions.

* ♻️  refactor: On-demand MCP connections; remove proactive reconnection, default to available

  - Remove reconnectServers() from refresh controller (connection storm root cause)
  - Stop gating server selection on connection status; add to selection immediately
  - Render agent panel tools from DB cache, not live connection status
  - Proceed to cached tools on init failure (only gate on OAuth)
  - Remove unused batchToggleServers()
  - Reduce useMCPServersQuery staleTime from 5min to 30s, enable refetchOnMount/WindowFocus

* refactor: Optimize MCP tool initialization and server connection logic

- Adjusted tool initialization to only occur if no cached tools are available, improving efficiency.
- Updated comments for clarity on server connection and tool fetching processes.
- Removed unnecessary connection status checks during server selection to streamline the user experience.
2026-02-17 22:33:57 -05:00
..
agents 🪆 refactor: Internalize Producer Event Handling into Agent Graph Context (#11816) 2026-02-17 00:53:22 -05:00
assistants 🏞️ fix: Gemini Image Filenames and Add Tool Cache Safety (#11306) 2026-01-12 09:01:23 -05:00
auth 🪙 refactor: Distinguish ID Tokens from Access Tokens in OIDC Federated Auth (#11711) 2026-02-13 11:07:39 -05:00
AuthController.js ♻️ refactor: On-demand MCP connections: remove proactive reconnect, default to available (#11839) 2026-02-17 22:33:57 -05:00
Balance.js 🏗️ refactor: Extract DB layers to data-schemas for shared use (#7650) 2025-05-30 22:18:13 -04:00
EndpointController.js refactor: Integrate Capabilities into Agent File Uploads and Tool Handling (#5048) 2024-12-19 13:04:48 -05:00
FavoritesController.js 📌 feat: Pin Agents and Models in the Sidebar (#10634) 2025-12-11 16:38:20 -05:00
mcp.js 🔒 feat: Add MCP server domain restrictions for remote transports (#11013) 2025-12-18 13:57:49 -05:00
ModelController.js 🧹 chore: Cleanup Logger and Utility Imports (#9935) 2025-10-01 23:30:47 -04:00
PermissionsController.js 🛸 feat: Remote Agent Access with External API Support (#11503) 2026-01-28 17:44:33 -05:00
PluginController.js 🗃️ refactor: Separate Tool Cache Namespace for Blue/Green Deployments (#11738) 2026-02-11 22:20:43 -05:00
PluginController.spec.js 🗃️ refactor: Separate Tool Cache Namespace for Blue/Green Deployments (#11738) 2026-02-11 22:20:43 -05:00
tools.js 🛜 refactor: Streamline App Config Usage (#9234) 2025-08-26 12:10:18 -04:00
TwoFactorController.js 🧵 refactor: Migrate Endpoint Initialization to TypeScript (#10794) 2025-12-11 16:37:16 -05:00
UserController.js 🛡️ fix: Secure MCP/Actions OAuth Flows, Resolve Race Condition & Tool Cache Cleanup (#11756) 2026-02-12 14:22:05 -05:00