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🤖 feat: Agent Handoffs (Routing) (#10176)

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* feat: Add support for agent handoffs with edges in agent forms and schemas

chore: Mark `agent_ids` field as deprecated in favor of edges across various schemas and types

chore: Update dependencies for @langchain/core and @librechat/agents to latest versions

chore: Update peer dependency for @librechat/agents to version 3.0.0-rc2 in package.json

chore: Update @librechat/agents dependency to version 3.0.0-rc3 in package.json and package-lock.json

feat: first pass, multi-agent handoffs

fix: update output type to ToolMessage in memory handling functions

fix: improve type checking for graphConfig in createRun function

refactor: remove unused content filtering logic in AgentClient

chore: update @librechat/agents dependency to version 3.0.0-rc4 in package.json and package-lock.json

fix: update @langchain/core peer dependency version to ^0.3.72 in package.json and package-lock.json

fix: update @librechat/agents dependency to version 3.0.0-rc6 in package.json and package-lock.json; refactor stream rate handling in various endpoints

feat: Agent handoff UI

chore: update @librechat/agents dependency to version 3.0.0-rc8 in package.json and package-lock.json

fix: improve hasInfo condition and adjust UI element classes in AgentHandoff component

refactor: remove current fixed agent display from AgentHandoffs component due to redundancy

feat: enhance AgentHandoffs UI with localized beta label and improved layout

chore: update @librechat/agents dependency to version 3.0.0-rc10 in package.json and package-lock.json

feat: add `createSequentialChainEdges` function to add back agent chaining via multi-agents

feat: update `createSequentialChainEdges` call to only provide conversation context between agents

feat: deprecate Agent Chain functionality and update related methods for improved clarity

* chore: update @librechat/agents dependency to version 3.0.0-rc11 in package.json and package-lock.json

* refactor: remove unused addCacheControl function and related imports and import from @librechat/agents

* chore: remove unused i18n keys

* refactor: remove unused format export from index.ts

* chore: update @librechat/agents to v3.0.0-rc13

* chore: remove BEDROCK_LEGACY provider from Providers enum

* chore: update @librechat/agents to version 3.0.2 in package.json
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Danny Avila 2025-11-05 17:15:17 -05:00 • committed by GitHub
parent 958a6c7872
commit 8a4a5a4790
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41 changed files with 1108 additions and 3810 deletions
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23
api/server/controllers/agents/callbacks.js
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@ -95,6 +95,19 @@ class ModelEndHandler {
}
}
/**
* @deprecated Agent Chain helper
* @param {string | undefined} [last_agent_id]
* @param {string | undefined} [langgraph_node]
* @returns {boolean}
*/
function checkIfLastAgent(last_agent_id, langgraph_node) {
if (!last_agent_id || !langgraph_node) {
return false;
}
return langgraph_node?.endsWith(last_agent_id);
}
/**
* Get default handlers for stream events.
* @param {Object} options - The options object.
@ -125,7 +138,7 @@ function getDefaultHandlers({ res, aggregateContent, toolEndCallback, collectedU
handle: (event, data, metadata) => {
if (data?.stepDetails.type === StepTypes.TOOL_CALLS) {
sendEvent(res, { event, data });
} else if (metadata?.last_agent_index === metadata?.agent_index) {
} else if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
sendEvent(res, { event, data });
} else if (!metadata?.hide_sequential_outputs) {
sendEvent(res, { event, data });
@ -154,7 +167,7 @@ function getDefaultHandlers({ res, aggregateContent, toolEndCallback, collectedU
handle: (event, data, metadata) => {
if (data?.delta.type === StepTypes.TOOL_CALLS) {
sendEvent(res, { event, data });
} else if (metadata?.last_agent_index === metadata?.agent_index) {
} else if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
sendEvent(res, { event, data });
} else if (!metadata?.hide_sequential_outputs) {
sendEvent(res, { event, data });
@ -172,7 +185,7 @@ function getDefaultHandlers({ res, aggregateContent, toolEndCallback, collectedU
handle: (event, data, metadata) => {
if (data?.result != null) {
sendEvent(res, { event, data });
} else if (metadata?.last_agent_index === metadata?.agent_index) {
} else if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
sendEvent(res, { event, data });
} else if (!metadata?.hide_sequential_outputs) {
sendEvent(res, { event, data });
@ -188,7 +201,7 @@ function getDefaultHandlers({ res, aggregateContent, toolEndCallback, collectedU
* @param {GraphRunnableConfig['configurable']} [metadata] The runnable metadata.
*/
handle: (event, data, metadata) => {
if (metadata?.last_agent_index === metadata?.agent_index) {
if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
sendEvent(res, { event, data });
} else if (!metadata?.hide_sequential_outputs) {
sendEvent(res, { event, data });
@ -204,7 +217,7 @@ function getDefaultHandlers({ res, aggregateContent, toolEndCallback, collectedU
* @param {GraphRunnableConfig['configurable']} [metadata] The runnable metadata.
*/
handle: (event, data, metadata) => {
if (metadata?.last_agent_index === metadata?.agent_index) {
if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
sendEvent(res, { event, data });
} else if (!metadata?.hide_sequential_outputs) {
sendEvent(res, { event, data });