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

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Danny Avila 2025-09-04 21:50:32 -04:00
parent 611411e712
commit f87bc231c5
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4 changed files with 37 additions and 5 deletions
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23
api/server/controllers/agents/callbacks.js
View file

@ -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 });

17
api/server/controllers/agents/client.js
View file

@ -867,6 +867,9 @@ class AgentClient extends BaseClient {
if (userMCPAuthMap != null) {
config.configurable.userMCPAuthMap = userMCPAuthMap;
}
/** @deprecated Agent Chain */
config.configurable.last_agent_id = agents[agents.length - 1].id;
await run.processStream({ messages }, config, {
callbacks: {
[Callback.TOOL_ERROR]: logToolError,
@ -877,6 +880,20 @@ class AgentClient extends BaseClient {
};
await runAgents(initialMessages);
/** @deprecated Agent Chain */
if (config.configurable.hide_sequential_outputs) {
this.contentParts = this.contentParts.filter((part, index) => {
// Include parts that are either:
// 1. At or after the finalContentStart index
// 2. Of type tool_call
// 3. Have tool_call_ids property
return (
index >= this.contentParts.length - 1 ||
part.type === ContentTypes.TOOL_CALL ||
part.tool_call_ids
);
});
}
try {
const attachments = await this.awaitMemoryWithTimeout(memoryPromise);

1
api/server/services/Endpoints/agents/initialize.js
View file

@ -192,6 +192,7 @@ const initializeClient = async ({ req, res, signal, endpointOption }) => {
}
}
/** @deprecated Agent Chain */
if (agent_ids?.length) {
for (const agentId of agent_ids) {
if (checkAgentInit(agentId)) {

1
packages/api/src/agents/chain.ts
View file

@ -7,6 +7,7 @@ const DEFAULT_PROMPT_TEMPLATE = `Based on the following conversation and analysi
/**
* Helper function to create sequential chain edges with buffer string prompts
*
* @deprecated Agent Chain helper
* @param agentIds - Array of agent IDs in order of execution
* @param promptTemplate - Optional prompt template string; defaults to a predefined template if not provided
* @returns Array of edges configured for sequential chain with buffer prompts