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✨ feat: Add Dynamic User Field Placeholder Support in MCP Variables (#7825)

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* chore: linting in mcp.spec.ts

* chore: linting in mcp.ts

* feat(mcp): support dynamic user field placeholders in MCP environment variables

- Added user object handling in MCP options, allowing for dynamic user field processing in environment variables, headers, and URLs.
- Updated `processMCPEnv` to utilize user fields for more flexible configurations.

* chore: update backend review workflow to include unit tests for @librechat/data-schemas
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Danny Avila 2025-06-10 22:20:41 -04:00 • committed by GitHub
parent c2a18f61b4
commit cdf42b3a03
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6 changed files with 357 additions and 39 deletions
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7
api/server/services/MCP.js
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@ -50,9 +50,10 @@ async function createMCPTool({ req, toolKey, provider: _provider }) {
/** @type {(toolArguments: Object | string, config?: GraphRunnableConfig) => Promise<unknown>} */
const _call = async (toolArguments, config) => {
const userId = config?.configurable?.user?.id || config?.configurable?.user_id;
try {
const derivedSignal = config?.signal ? AbortSignal.any([config.signal]) : undefined;
const mcpManager = getMCPManager(config?.configurable?.user_id);
const mcpManager = getMCPManager(userId);
const provider = (config?.metadata?.provider || _provider)?.toLowerCase();
const result = await mcpManager.callTool({
serverName,
@ -60,8 +61,8 @@ async function createMCPTool({ req, toolKey, provider: _provider }) {
provider,
toolArguments,
options: {
userId: config?.configurable?.user_id,
signal: derivedSignal,
user: config?.configurable?.user,
},
});
@ -74,7 +75,7 @@ async function createMCPTool({ req, toolKey, provider: _provider }) {
return result;
} catch (error) {
logger.error(
`[MCP][User: ${config?.configurable?.user_id}][${serverName}] Error calling "${toolName}" MCP tool:`,
`[MCP][User: ${userId}][${serverName}] Error calling "${toolName}" MCP tool:`,
error,
);
throw new Error(