mirror of
https://github.com/danny-avila/LibreChat.git
synced 2026-06-10 18:17:08 +00:00
1da789bac0
* feat: add agent file authoring tools * style: format file authoring changes * style: satisfy file authoring prettier * test: fix file authoring initialization expectations * fix: complete skill file authoring flow * fix: pass skill authoring state on edit * test: mock missing bundled skill file * fix: harden agent file authoring gates * fix: preserve file authoring runtime context * test: fix authoring context mock typing * fix: preserve subagent skill primes * test: avoid array at in handler spec * refactor: deepen skill authoring runtime wiring * fix: address codex authoring review findings * test: fix authoring collision fixture type * test: add skill file authoring mock e2e * fix: Improve skill file authoring recovery * fix: Show file authoring args while running * fix: Clarify skill rename authoring errors * fix: Keep code-only file authoring schemas sandbox scoped * fix: Address skill authoring review findings * fix: Gate skill authoring on write access
1081 lines
39 KiB
JavaScript
1081 lines
39 KiB
JavaScript
const { nanoid } = require('nanoid');
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const { logger } = require('@librechat/data-schemas');
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const { Tools, StepTypes, FileContext, ErrorTypes } = require('librechat-data-provider');
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const {
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GraphEvents,
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GraphNodeKeys,
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ToolEndHandler,
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createContentAggregator,
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} = require('@librechat/agents');
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const {
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sendEvent,
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GenerationJobManager,
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writeAttachmentEvent,
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createToolExecuteHandler,
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HOST_FILE_AUTHORING_ARTIFACT_KEY,
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isCodeSessionToolName,
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} = require('@librechat/api');
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const { processFileCitations } = require('~/server/services/Files/Citations');
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const { processCodeOutput, runPreviewFinalize } = require('~/server/services/Files/Code/process');
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const { saveBase64Image } = require('~/server/services/Files/process');
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function isHostFileAuthoringArtifact(artifact) {
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return artifact?.[HOST_FILE_AUTHORING_ARTIFACT_KEY] === true;
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}
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function isCodeArtifactToolOutput(output) {
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return isCodeSessionToolName(output.name) || isHostFileAuthoringArtifact(output.artifact);
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}
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class ModelEndHandler {
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/**
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* @param {Array<UsageMetadata>} collectedUsage
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* @param {Record<string, string> | null} [collectedThoughtSignatures] Map of
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* `tool_call_id → thoughtSignature` accumulated across `chat_model_end`
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* events. Used to persist Vertex Gemini 3 thought signatures across DB
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* round-trips so resumed conversations don't 400 on the next API call.
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* Each `model_end` may emit multiple tool calls (one per LLM cycle in a
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* tool-using turn); per-id storage preserves the mapping so each tool
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* call's signature can be restored onto the right reconstructed
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* AIMessage rather than being concentrated on the last one.
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* Optional; when `null`, the handler is a no-op for signatures. Non-Vertex
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* providers don't emit `additional_kwargs.signatures`, so capture is also
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* a no-op for them even when the map is provided.
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*/
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constructor(collectedUsage, collectedThoughtSignatures = null) {
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if (!Array.isArray(collectedUsage)) {
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throw new Error('collectedUsage must be an array');
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}
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this.collectedUsage = collectedUsage;
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this.collectedThoughtSignatures = collectedThoughtSignatures;
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}
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finalize(errorMessage) {
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if (!errorMessage) {
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return;
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}
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throw new Error(errorMessage);
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}
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/**
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* @param {string} event
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* @param {ModelEndData | undefined} data
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* @param {Record<string, unknown> | undefined} metadata
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* @param {StandardGraph} graph
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* @returns {Promise<void>}
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*/
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async handle(event, data, metadata, graph) {
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if (!graph || !metadata) {
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console.warn(`Graph or metadata not found in ${event} event`);
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return;
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}
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/** @type {string | undefined} */
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let errorMessage;
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try {
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const agentContext = graph.getAgentContext(metadata);
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if (data?.output?.additional_kwargs?.stop_reason === 'refusal') {
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const info = { ...data.output.additional_kwargs };
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errorMessage = JSON.stringify({
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type: ErrorTypes.REFUSAL,
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info,
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});
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logger.debug(`[ModelEndHandler] Model refused to respond`, {
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...info,
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userId: metadata.user_id,
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messageId: metadata.run_id,
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conversationId: metadata.thread_id,
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});
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}
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const usage = data?.output?.usage_metadata;
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if (!usage) {
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return this.finalize(errorMessage);
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}
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const modelName = metadata?.ls_model_name || agentContext.clientOptions?.model;
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if (modelName) {
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usage.model = modelName;
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}
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if (agentContext.provider) {
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usage.provider = agentContext.provider;
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}
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const taggedUsage = markSummarizationUsage(usage, metadata);
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this.collectedUsage.push(taggedUsage);
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/**
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* `additional_kwargs.signatures` is a flat array indexed by response
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* part position (text + functionCall interleaved). `tool_calls` is
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* just the function calls in their original order. Non-empty
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* signatures correspond 1:1 with `tool_calls` in order — see
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* `partsToSignatures` in `@langchain/google-common`. Walk both in a
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* single pass to map each signature onto the right `tool_call.id`.
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*/
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const signatures = data?.output?.additional_kwargs?.signatures;
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const toolCalls = data?.output?.tool_calls;
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if (
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this.collectedThoughtSignatures &&
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Array.isArray(signatures) &&
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Array.isArray(toolCalls)
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) {
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let toolIdx = 0;
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for (const sig of signatures) {
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if (typeof sig !== 'string' || sig.length === 0) continue;
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if (toolIdx >= toolCalls.length) break;
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const id = toolCalls[toolIdx++]?.id;
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if (id) this.collectedThoughtSignatures[id] = sig;
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}
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}
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} catch (error) {
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logger.error('Error handling model end event:', error);
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return this.finalize(errorMessage);
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}
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}
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}
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/**
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* @deprecated Agent Chain helper
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* @param {string | undefined} [last_agent_id]
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* @param {string | undefined} [langgraph_node]
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* @returns {boolean}
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*/
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function checkIfLastAgent(last_agent_id, langgraph_node) {
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if (!last_agent_id || !langgraph_node) {
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return false;
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}
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return langgraph_node?.endsWith(last_agent_id);
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}
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/**
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* Helper to emit events either to res (standard mode) or to job emitter (resumable mode).
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* In Redis mode, awaits the emit to guarantee event ordering (critical for streaming deltas).
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* @param {ServerResponse} res - The server response object
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* @param {string | null} streamId - The stream ID for resumable mode, or null for standard mode
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* @param {Object} eventData - The event data to send
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* @returns {Promise<void>}
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*/
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async function emitEvent(res, streamId, eventData) {
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if (streamId) {
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await GenerationJobManager.emitChunk(streamId, eventData);
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} else {
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sendEvent(res, eventData);
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}
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}
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/**
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* Maps a {@link SubagentUpdateEvent} phase to the corresponding
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* {@link GraphEvents} name that the SDK's `createContentAggregator`
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* knows how to consume. Phases that don't carry content (`start`, `stop`,
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* `error`) or whose payload doesn't match a handled event (`run_step`
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* with an `ON_TOOL_EXECUTE`-shaped batch request rather than a RunStep)
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* return `null` so the caller skips them.
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* @param {SubagentUpdateEvent} event
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* @returns {string | null}
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*/
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function subagentPhaseToGraphEvent(event) {
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switch (event?.phase) {
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case 'run_step':
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/** `ON_RUN_STEP` and `ON_TOOL_EXECUTE` both forward with phase
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* `run_step`; only the former matches the aggregator's RunStep
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* schema. Detect by presence of `stepDetails`. */
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return event.data?.stepDetails ? GraphEvents.ON_RUN_STEP : null;
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case 'run_step_delta':
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return GraphEvents.ON_RUN_STEP_DELTA;
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case 'run_step_completed':
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return GraphEvents.ON_RUN_STEP_COMPLETED;
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case 'message_delta':
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return GraphEvents.ON_MESSAGE_DELTA;
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case 'reasoning_delta':
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return GraphEvents.ON_REASONING_DELTA;
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default:
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return null;
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}
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}
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/**
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* Folds a single {@link SubagentUpdateEvent} into the given content
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* aggregator. Silent no-op for phases outside the aggregator's domain.
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* @param {{ aggregateContent: Function }} aggregator
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* @param {SubagentUpdateEvent} event
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*/
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function feedSubagentAggregator(aggregator, event) {
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const graphEvent = subagentPhaseToGraphEvent(event);
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if (!graphEvent) return;
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aggregator.aggregateContent({ event: graphEvent, data: event.data });
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}
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/**
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* @typedef {Object} ToolExecuteOptions
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* @property {(toolNames: string[]) => Promise<{loadedTools: StructuredTool[]}>} loadTools - Function to load tools by name
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* @property {Object} configurable - Configurable context for tool invocation
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*/
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/**
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* Get default handlers for stream events.
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* @param {Object} options - The options object.
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* @param {ServerResponse} options.res - The server response object.
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* @param {ContentAggregator} options.aggregateContent - Content aggregator function.
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* @param {ToolEndCallback} options.toolEndCallback - Callback to use when tool ends.
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* @param {Array<UsageMetadata>} options.collectedUsage - The list of collected usage metadata.
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* @param {string | null} [options.streamId] - The stream ID for resumable mode, or null for standard mode.
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* @param {ToolExecuteOptions} [options.toolExecuteOptions] - Options for event-driven tool execution.
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* @returns {Record<string, t.EventHandler>} The default handlers.
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* @throws {Error} If the request is not found.
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*/
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function getDefaultHandlers({
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res,
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aggregateContent,
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toolEndCallback,
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collectedUsage,
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collectedThoughtSignatures = null,
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streamId = null,
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toolExecuteOptions = null,
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summarizationOptions = null,
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subagentAggregatorsByToolCallId = null,
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}) {
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if (!res || !aggregateContent) {
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throw new Error(
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`[getDefaultHandlers] Missing required options: res: ${!res}, aggregateContent: ${!aggregateContent}`,
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);
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}
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const handlers = {
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[GraphEvents.CHAT_MODEL_END]: new ModelEndHandler(collectedUsage, collectedThoughtSignatures),
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[GraphEvents.TOOL_END]: new ToolEndHandler(toolEndCallback, logger),
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[GraphEvents.ON_RUN_STEP]: {
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/**
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* Handle ON_RUN_STEP event.
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* @param {string} event - The event name.
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* @param {StreamEventData} data - The event data.
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* @param {GraphRunnableConfig['configurable']} [metadata] The runnable metadata.
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*/
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handle: async (event, data, metadata) => {
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aggregateContent({ event, data });
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if (data?.stepDetails.type === StepTypes.TOOL_CALLS) {
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await emitEvent(res, streamId, { event, data });
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} else if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
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await emitEvent(res, streamId, { event, data });
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} else if (!metadata?.hide_sequential_outputs) {
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await emitEvent(res, streamId, { event, data });
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} else {
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const agentName = metadata?.name ?? 'Agent';
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const isToolCall = data?.stepDetails.type === StepTypes.TOOL_CALLS;
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const action = isToolCall ? 'performing a task...' : 'thinking...';
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await emitEvent(res, streamId, {
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event: 'on_agent_update',
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data: {
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runId: metadata?.run_id,
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message: `${agentName} is ${action}`,
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},
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});
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}
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},
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},
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[GraphEvents.ON_RUN_STEP_DELTA]: {
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/**
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* Handle ON_RUN_STEP_DELTA event.
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* @param {string} event - The event name.
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* @param {StreamEventData} data - The event data.
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* @param {GraphRunnableConfig['configurable']} [metadata] The runnable metadata.
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*/
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handle: async (event, data, metadata) => {
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aggregateContent({ event, data });
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if (data?.delta.type === StepTypes.TOOL_CALLS) {
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await emitEvent(res, streamId, { event, data });
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} else if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
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await emitEvent(res, streamId, { event, data });
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} else if (!metadata?.hide_sequential_outputs) {
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await emitEvent(res, streamId, { event, data });
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}
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},
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},
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[GraphEvents.ON_RUN_STEP_COMPLETED]: {
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/**
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* Handle ON_RUN_STEP_COMPLETED event.
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* @param {string} event - The event name.
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* @param {StreamEventData & { result: ToolEndData }} data - The event data.
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* @param {GraphRunnableConfig['configurable']} [metadata] The runnable metadata.
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*/
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handle: async (event, data, metadata) => {
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aggregateContent({ event, data });
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if (data?.result != null) {
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await emitEvent(res, streamId, { event, data });
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} else if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
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await emitEvent(res, streamId, { event, data });
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} else if (!metadata?.hide_sequential_outputs) {
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await emitEvent(res, streamId, { event, data });
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}
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},
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},
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[GraphEvents.ON_MESSAGE_DELTA]: {
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/**
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* Handle ON_MESSAGE_DELTA event.
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* @param {string} event - The event name.
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* @param {StreamEventData} data - The event data.
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* @param {GraphRunnableConfig['configurable']} [metadata] The runnable metadata.
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*/
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handle: async (event, data, metadata) => {
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aggregateContent({ event, data });
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if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
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await emitEvent(res, streamId, { event, data });
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} else if (!metadata?.hide_sequential_outputs) {
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await emitEvent(res, streamId, { event, data });
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}
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},
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},
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[GraphEvents.ON_REASONING_DELTA]: {
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/**
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* Handle ON_REASONING_DELTA event.
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* @param {string} event - The event name.
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* @param {StreamEventData} data - The event data.
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* @param {GraphRunnableConfig['configurable']} [metadata] The runnable metadata.
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*/
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handle: async (event, data, metadata) => {
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aggregateContent({ event, data });
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if (checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node)) {
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await emitEvent(res, streamId, { event, data });
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} else if (!metadata?.hide_sequential_outputs) {
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await emitEvent(res, streamId, { event, data });
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}
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},
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},
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};
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if (toolExecuteOptions) {
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handlers[GraphEvents.ON_TOOL_EXECUTE] = createToolExecuteHandler(toolExecuteOptions);
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}
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handlers[GraphEvents.ON_SUBAGENT_UPDATE] = {
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/**
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* Forwards subagent progress envelopes to the client stream, and
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* (when a caller-owned aggregator map is provided) also folds each
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* event into a per-tool-call `createContentAggregator`. The
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* resulting `contentParts` are attached to the parent's `subagent`
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* tool_call at message-save time so the child's reasoning / tool
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* calls / final text survive a page refresh — in-memory Recoil
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* atoms alone wouldn't persist that.
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*
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* Aggregation runs regardless of stream visibility (persistence +
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* dialog depend on it), but the SSE forward respects
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* `hide_sequential_outputs` the same way `ON_RUN_STEP`,
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* `ON_MESSAGE_DELTA`, etc. do — so intermediate agents in a
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* sequential chain don't leak their subagent activity when the
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* chain is configured to suppress intermediates.
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*/
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handle: async (event, data, metadata) => {
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const isLastAgent = checkIfLastAgent(metadata?.last_agent_id, metadata?.langgraph_node);
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const visible = isLastAgent || !metadata?.hide_sequential_outputs;
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/**
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* Gate BOTH aggregation (persistence) AND streaming on the same
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* visibility rule. If we aggregated for a hidden intermediate
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* agent, `finalizeSubagentContent` would still attach its
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* child's reasoning / tool output to the saved message — so a
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* page refresh would reveal activity that was intentionally
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* suppressed live. Treat hide_sequential_outputs as a
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* consistent "don't record" rule for subagent traces.
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*/
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if (!visible) return;
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if (subagentAggregatorsByToolCallId && data?.parentToolCallId) {
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const key = data.parentToolCallId;
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let aggregator = subagentAggregatorsByToolCallId.get(key);
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if (!aggregator) {
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aggregator = createContentAggregator();
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subagentAggregatorsByToolCallId.set(key, aggregator);
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}
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try {
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feedSubagentAggregator(aggregator, data);
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} catch (err) {
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logger.warn(
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`[ON_SUBAGENT_UPDATE] Failed to aggregate phase "${data?.phase}" for tool_call ${key}: ${err?.message ?? err}`,
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);
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}
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}
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await emitEvent(res, streamId, { event, data });
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},
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};
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if (summarizationOptions?.enabled !== false) {
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handlers[GraphEvents.ON_SUMMARIZE_START] = {
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handle: async (_event, data) => {
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await emitEvent(res, streamId, {
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event: GraphEvents.ON_SUMMARIZE_START,
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data,
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});
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},
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};
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handlers[GraphEvents.ON_SUMMARIZE_DELTA] = {
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handle: async (_event, data) => {
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aggregateContent({ event: GraphEvents.ON_SUMMARIZE_DELTA, data });
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await emitEvent(res, streamId, {
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event: GraphEvents.ON_SUMMARIZE_DELTA,
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data,
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});
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},
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};
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handlers[GraphEvents.ON_SUMMARIZE_COMPLETE] = {
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handle: async (_event, data) => {
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aggregateContent({ event: GraphEvents.ON_SUMMARIZE_COMPLETE, data });
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await emitEvent(res, streamId, {
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event: GraphEvents.ON_SUMMARIZE_COMPLETE,
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data,
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});
|
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},
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};
|
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}
|
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handlers[GraphEvents.ON_AGENT_LOG] = { handle: agentLogHandler };
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return handlers;
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}
|
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|
|
/**
|
|
* Helper to write attachment events either to res or to job emitter.
|
|
* Note: Attachments are not order-sensitive like deltas, so fire-and-forget is acceptable.
|
|
* @param {ServerResponse} res - The server response object
|
|
* @param {string | null} streamId - The stream ID for resumable mode, or null for standard mode
|
|
* @param {Object} attachment - The attachment data
|
|
*/
|
|
function writeAttachment(res, streamId, attachment) {
|
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if (streamId) {
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GenerationJobManager.emitChunk(streamId, { event: 'attachment', data: attachment });
|
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} else {
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res.write(`event: attachment\ndata: ${JSON.stringify(attachment)}\n\n`);
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}
|
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}
|
|
|
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/**
|
|
* Predicate: is it safe to push an SSE write to the caller right now?
|
|
*
|
|
* In `streamId` (resumable) mode, writes go to the job emitter and the
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|
* `res` state is irrelevant — always writable.
|
|
*
|
|
* In standard mode, the caller's `res` must have headers sent (the
|
|
* stream has been opened) and not yet be `writableEnded` (the response
|
|
* hasn't closed). Writing to a closed stream raises
|
|
* `ERR_STREAM_WRITE_AFTER_END`.
|
|
*
|
|
* Used by deferred preview emits in both `createToolEndCallback`
|
|
* (chat-completions) and `createResponsesToolEndCallback` (Open
|
|
* Responses) so the gate logic stays in one place. (Comprehensive
|
|
* review #3 on PR #12957.)
|
|
*/
|
|
function isStreamWritable(res, streamId) {
|
|
if (streamId) {
|
|
return true;
|
|
}
|
|
return !!res && res.headersSent && !res.writableEnded;
|
|
}
|
|
|
|
/**
|
|
* Emit an update for an attachment that was previously sent with
|
|
* `status: 'pending'`. Fire-and-forget: if the response stream has
|
|
* already closed (the agent finished generating before the deferred
|
|
* preview resolved) the frontend's React Query polling on
|
|
* `/api/files/:file_id/preview` picks up the resolved record on its
|
|
* next tick. Skipping the write in that case avoids
|
|
* `ERR_STREAM_WRITE_AFTER_END`.
|
|
*
|
|
* Reuses the `attachment` SSE event name with a discriminated payload:
|
|
* the frontend's `useAttachmentHandler` upserts by `file_id`, so a
|
|
* second event with the same id and `status: 'ready' | 'failed'`
|
|
* overwrites the pending placeholder in place. No new event type, no
|
|
* new client listener.
|
|
*
|
|
* @param {ServerResponse} res
|
|
* @param {string | null} streamId
|
|
* @param {Object} attachment - Updated attachment payload (must carry `file_id`).
|
|
*/
|
|
function writeAttachmentUpdate(res, streamId, attachment) {
|
|
if (!isStreamWritable(res, streamId)) {
|
|
return;
|
|
}
|
|
writeAttachment(res, streamId, attachment);
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @param {Object} params
|
|
* @param {ServerRequest} params.req
|
|
* @param {ServerResponse} params.res
|
|
* @param {Promise<MongoFile | { filename: string; filepath: string; expires: number;} | null>[]} params.artifactPromises
|
|
* @param {string | null} [params.streamId] - The stream ID for resumable mode, or null for standard mode.
|
|
* @returns {ToolEndCallback} The tool end callback.
|
|
*/
|
|
function createToolEndCallback({ req, res, artifactPromises, streamId = null }) {
|
|
/**
|
|
* @type {ToolEndCallback}
|
|
*/
|
|
return async (data, metadata) => {
|
|
const output = data?.output;
|
|
if (!output) {
|
|
return;
|
|
}
|
|
|
|
if (!output.artifact) {
|
|
return;
|
|
}
|
|
|
|
if (output.artifact[Tools.file_search]) {
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const user = req.user;
|
|
const attachment = await processFileCitations({
|
|
user,
|
|
metadata,
|
|
appConfig: req.config,
|
|
toolArtifact: output.artifact,
|
|
toolCallId: output.tool_call_id,
|
|
});
|
|
if (!attachment) {
|
|
return null;
|
|
}
|
|
if (!streamId && !res.headersSent) {
|
|
return attachment;
|
|
}
|
|
writeAttachment(res, streamId, attachment);
|
|
return attachment;
|
|
})().catch((error) => {
|
|
logger.error('Error processing file citations:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
|
|
if (output.artifact[Tools.ui_resources]) {
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const attachment = {
|
|
type: Tools.ui_resources,
|
|
messageId: metadata.run_id,
|
|
toolCallId: output.tool_call_id,
|
|
conversationId: metadata.thread_id,
|
|
[Tools.ui_resources]: output.artifact[Tools.ui_resources].data,
|
|
};
|
|
if (!streamId && !res.headersSent) {
|
|
return attachment;
|
|
}
|
|
writeAttachment(res, streamId, attachment);
|
|
return attachment;
|
|
})().catch((error) => {
|
|
logger.error('Error processing artifact content:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
|
|
if (output.artifact[Tools.web_search]) {
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const attachment = {
|
|
type: Tools.web_search,
|
|
messageId: metadata.run_id,
|
|
toolCallId: output.tool_call_id,
|
|
conversationId: metadata.thread_id,
|
|
[Tools.web_search]: { ...output.artifact[Tools.web_search] },
|
|
};
|
|
if (!streamId && !res.headersSent) {
|
|
return attachment;
|
|
}
|
|
writeAttachment(res, streamId, attachment);
|
|
return attachment;
|
|
})().catch((error) => {
|
|
logger.error('Error processing artifact content:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
|
|
if (output.artifact.content) {
|
|
/** @type {FormattedContent[]} */
|
|
const content = output.artifact.content;
|
|
for (let i = 0; i < content.length; i++) {
|
|
const part = content[i];
|
|
if (!part) {
|
|
continue;
|
|
}
|
|
if (part.type !== 'image_url') {
|
|
continue;
|
|
}
|
|
const { url } = part.image_url;
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const filename = `${output.name}_img_${nanoid()}`;
|
|
const file_id = output.artifact.file_ids?.[i];
|
|
const file = await saveBase64Image(url, {
|
|
req,
|
|
file_id,
|
|
filename,
|
|
endpoint: metadata.provider,
|
|
context: FileContext.image_generation,
|
|
});
|
|
const fileMetadata = Object.assign(file, {
|
|
messageId: metadata.run_id,
|
|
toolCallId: output.tool_call_id,
|
|
conversationId: metadata.thread_id,
|
|
});
|
|
if (!streamId && !res.headersSent) {
|
|
return fileMetadata;
|
|
}
|
|
|
|
if (!fileMetadata) {
|
|
return null;
|
|
}
|
|
|
|
writeAttachment(res, streamId, fileMetadata);
|
|
return fileMetadata;
|
|
})().catch((error) => {
|
|
logger.error('Error processing artifact content:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (!isCodeArtifactToolOutput(output)) {
|
|
return;
|
|
}
|
|
|
|
if (!output.artifact.files) {
|
|
return;
|
|
}
|
|
|
|
for (const file of output.artifact.files) {
|
|
/* `inherited` files are unchanged passthroughs of inputs the caller
|
|
* already owns (skill files, prior session inputs, inherited
|
|
* .dirkeep markers). Skip post-processing: re-downloading with the
|
|
* user's session key 403s when the file is entity-scoped, and the
|
|
* input is already persisted at its origin. They remain available
|
|
* to subsequent calls via primeInvokedSkills / session inheritance. */
|
|
if (file.inherited) {
|
|
continue;
|
|
}
|
|
const { id, name } = file;
|
|
const toolCallId = output.tool_call_id;
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const result = await processCodeOutput({
|
|
req,
|
|
id,
|
|
name,
|
|
messageId: metadata.run_id,
|
|
toolCallId,
|
|
conversationId: metadata.thread_id,
|
|
/**
|
|
* Use the FILE's `storage_session_id` (storage session),
|
|
* not the top-level artifact `session_id` (exec session).
|
|
* The codeapi worker reports two distinct ids on a tool
|
|
* result:
|
|
* - `artifact.session_id` is the EXEC session — the
|
|
* sandbox VM that ran the bash command. Files don't
|
|
* live there; it's torn down post-execution.
|
|
* - `file.storage_session_id` is the STORAGE session —
|
|
* the file-server bucket prefix where artifacts
|
|
* actually live and are served from.
|
|
* `processCodeOutput` builds `/download/{session_id}/{id}`,
|
|
* so passing the exec id resolves to a path the file-server
|
|
* doesn't know about and 404s. Fall back to artifact-level
|
|
* for older worker payloads that may not populate per-file
|
|
* ids.
|
|
*/
|
|
session_id: file.storage_session_id ?? output.artifact.session_id,
|
|
});
|
|
const fileMetadata = result?.file ?? null;
|
|
const finalize = result?.finalize;
|
|
if (!fileMetadata) {
|
|
return null;
|
|
}
|
|
/* Initial emit: ship the attachment to the client immediately
|
|
* (carries `status: 'pending'` for office buckets so the UI
|
|
* shows "preparing preview…"). The agent's response stops
|
|
* blocking on extraction here.
|
|
*
|
|
* Use the shared `isStreamWritable` predicate rather than the
|
|
* narrower `streamId || res.headersSent` check that lived
|
|
* here before — a client disconnect mid-stream
|
|
* (`res.writableEnded`) would otherwise hit `res.write` and
|
|
* raise `ERR_STREAM_WRITE_AFTER_END` (caught by the outer
|
|
* IIFE catch but logged as noise). Same gate the Responses
|
|
* path uses below. */
|
|
if (isStreamWritable(res, streamId)) {
|
|
writeAttachment(res, streamId, fileMetadata);
|
|
}
|
|
/* Deferred preview rendering: extraction continues running
|
|
* even after the HTTP response closes. If the stream is still
|
|
* open when the preview resolves, push an `attachment`
|
|
* update event so the UI patches in place; otherwise React
|
|
* Query polling on `/api/files/:file_id/preview` picks it up.
|
|
*
|
|
* Spread the full updated record (mirroring the initial emit
|
|
* shape) and overlay `messageId`/`toolCallId` from the
|
|
* current run. The DB record preserves the original
|
|
* `messageId` across cross-turn filename reuse so
|
|
* `getCodeGeneratedFiles` can trace the file back to its
|
|
* original assistant message; routing the update SSE by the
|
|
* persisted id would land the patch on a stale message
|
|
* slot — turn-N's pending placeholder would stay stuck while
|
|
* turn-1's already-resolved attachment got re-merged.
|
|
* (Codex P1 review on PR #12957.) */
|
|
runPreviewFinalize({
|
|
finalize,
|
|
fileId: fileMetadata.file_id,
|
|
previewRevision: result?.previewRevision,
|
|
onResolved: (updated) => {
|
|
writeAttachmentUpdate(res, streamId, {
|
|
...updated,
|
|
messageId: metadata.run_id,
|
|
toolCallId,
|
|
});
|
|
},
|
|
});
|
|
return fileMetadata;
|
|
})().catch((error) => {
|
|
logger.error('Error processing code output:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Helper to write attachment events in Open Responses format (librechat:attachment)
|
|
* @param {ServerResponse} res - The server response object
|
|
* @param {Object} tracker - The response tracker with sequence number
|
|
* @param {Object} attachment - The attachment data
|
|
* @param {Object} metadata - Additional metadata (messageId, conversationId)
|
|
*/
|
|
function writeResponsesAttachment(res, tracker, attachment, metadata) {
|
|
const sequenceNumber = tracker.nextSequence();
|
|
writeAttachmentEvent(res, sequenceNumber, attachment, {
|
|
messageId: metadata.run_id,
|
|
conversationId: metadata.thread_id,
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Creates a tool end callback specifically for the Responses API.
|
|
* Emits attachments as `librechat:attachment` events per the Open Responses extension spec.
|
|
*
|
|
* @param {Object} params
|
|
* @param {ServerRequest} params.req
|
|
* @param {ServerResponse} params.res
|
|
* @param {Object} params.tracker - Response tracker with sequence number
|
|
* @param {Promise<MongoFile | { filename: string; filepath: string; expires: number;} | null>[]} params.artifactPromises
|
|
* @returns {ToolEndCallback} The tool end callback.
|
|
*/
|
|
function createResponsesToolEndCallback({ req, res, tracker, artifactPromises }) {
|
|
/**
|
|
* @type {ToolEndCallback}
|
|
*/
|
|
return async (data, metadata) => {
|
|
const output = data?.output;
|
|
if (!output) {
|
|
return;
|
|
}
|
|
|
|
if (!output.artifact) {
|
|
return;
|
|
}
|
|
|
|
if (output.artifact[Tools.file_search]) {
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const user = req.user;
|
|
const attachment = await processFileCitations({
|
|
user,
|
|
metadata,
|
|
appConfig: req.config,
|
|
toolArtifact: output.artifact,
|
|
toolCallId: output.tool_call_id,
|
|
});
|
|
if (!attachment) {
|
|
return null;
|
|
}
|
|
// For Responses API, emit attachment during streaming
|
|
if (res.headersSent && !res.writableEnded) {
|
|
writeResponsesAttachment(res, tracker, attachment, metadata);
|
|
}
|
|
return attachment;
|
|
})().catch((error) => {
|
|
logger.error('Error processing file citations:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
|
|
if (output.artifact[Tools.ui_resources]) {
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const attachment = {
|
|
type: Tools.ui_resources,
|
|
toolCallId: output.tool_call_id,
|
|
[Tools.ui_resources]: output.artifact[Tools.ui_resources].data,
|
|
};
|
|
// For Responses API, always emit attachment during streaming
|
|
if (res.headersSent && !res.writableEnded) {
|
|
writeResponsesAttachment(res, tracker, attachment, metadata);
|
|
}
|
|
return attachment;
|
|
})().catch((error) => {
|
|
logger.error('Error processing artifact content:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
|
|
if (output.artifact[Tools.web_search]) {
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const attachment = {
|
|
type: Tools.web_search,
|
|
toolCallId: output.tool_call_id,
|
|
[Tools.web_search]: { ...output.artifact[Tools.web_search] },
|
|
};
|
|
// For Responses API, always emit attachment during streaming
|
|
if (res.headersSent && !res.writableEnded) {
|
|
writeResponsesAttachment(res, tracker, attachment, metadata);
|
|
}
|
|
return attachment;
|
|
})().catch((error) => {
|
|
logger.error('Error processing artifact content:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
|
|
if (output.artifact.content) {
|
|
/** @type {FormattedContent[]} */
|
|
const content = output.artifact.content;
|
|
for (let i = 0; i < content.length; i++) {
|
|
const part = content[i];
|
|
if (!part) {
|
|
continue;
|
|
}
|
|
if (part.type !== 'image_url') {
|
|
continue;
|
|
}
|
|
const { url } = part.image_url;
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const filename = `${output.name}_img_${nanoid()}`;
|
|
const file_id = output.artifact.file_ids?.[i];
|
|
const file = await saveBase64Image(url, {
|
|
req,
|
|
file_id,
|
|
filename,
|
|
endpoint: metadata.provider,
|
|
context: FileContext.image_generation,
|
|
});
|
|
const fileMetadata = Object.assign(file, {
|
|
toolCallId: output.tool_call_id,
|
|
});
|
|
|
|
if (!fileMetadata) {
|
|
return null;
|
|
}
|
|
|
|
// For Responses API, emit attachment during streaming
|
|
if (res.headersSent && !res.writableEnded) {
|
|
const attachment = {
|
|
file_id: fileMetadata.file_id,
|
|
filename: fileMetadata.filename,
|
|
type: fileMetadata.type,
|
|
url: fileMetadata.filepath,
|
|
width: fileMetadata.width,
|
|
height: fileMetadata.height,
|
|
tool_call_id: output.tool_call_id,
|
|
};
|
|
writeResponsesAttachment(res, tracker, attachment, metadata);
|
|
}
|
|
|
|
return fileMetadata;
|
|
})().catch((error) => {
|
|
logger.error('Error processing artifact content:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (!isCodeArtifactToolOutput(output)) {
|
|
return;
|
|
}
|
|
|
|
if (!output.artifact.files) {
|
|
return;
|
|
}
|
|
|
|
for (const file of output.artifact.files) {
|
|
/* `inherited` files are unchanged passthroughs of inputs the caller
|
|
* already owns (skill files, prior session inputs, inherited
|
|
* .dirkeep markers). Skip post-processing: re-downloading with the
|
|
* user's session key 403s when the file is entity-scoped, and the
|
|
* input is already persisted at its origin. They remain available
|
|
* to subsequent calls via primeInvokedSkills / session inheritance. */
|
|
if (file.inherited) {
|
|
continue;
|
|
}
|
|
const { id, name } = file;
|
|
const toolCallId = output.tool_call_id;
|
|
artifactPromises.push(
|
|
(async () => {
|
|
const result = await processCodeOutput({
|
|
req,
|
|
id,
|
|
name,
|
|
messageId: metadata.run_id,
|
|
toolCallId,
|
|
conversationId: metadata.thread_id,
|
|
/**
|
|
* Use the FILE's `storage_session_id` (storage session),
|
|
* not the top-level artifact `session_id` (exec session).
|
|
* The codeapi worker reports two distinct ids on a tool
|
|
* result:
|
|
* - `artifact.session_id` is the EXEC session — the
|
|
* sandbox VM that ran the bash command. Files don't
|
|
* live there; it's torn down post-execution.
|
|
* - `file.storage_session_id` is the STORAGE session —
|
|
* the file-server bucket prefix where artifacts
|
|
* actually live and are served from.
|
|
* `processCodeOutput` builds `/download/{session_id}/{id}`,
|
|
* so passing the exec id resolves to a path the file-server
|
|
* doesn't know about and 404s. Fall back to artifact-level
|
|
* for older worker payloads that may not populate per-file
|
|
* ids.
|
|
*/
|
|
session_id: file.storage_session_id ?? output.artifact.session_id,
|
|
});
|
|
const fileMetadata = result?.file ?? null;
|
|
const finalize = result?.finalize;
|
|
if (!fileMetadata) {
|
|
return null;
|
|
}
|
|
|
|
/* Initial emit (Open Responses extension format). The agent's
|
|
* response no longer blocks on extraction. */
|
|
if (isStreamWritable(res, null)) {
|
|
writeResponsesAttachment(
|
|
res,
|
|
tracker,
|
|
buildResponsesAttachment(fileMetadata, toolCallId),
|
|
metadata,
|
|
);
|
|
}
|
|
|
|
/* Deferred preview rendering: extract HTML in the background
|
|
* and emit a follow-up `librechat:attachment` with the same
|
|
* `file_id` so the client merges the resolved record over the
|
|
* pending placeholder. Fire-and-forget — survives response
|
|
* close; polling covers the post-close gap. */
|
|
runPreviewFinalize({
|
|
finalize,
|
|
fileId: fileMetadata.file_id,
|
|
previewRevision: result?.previewRevision,
|
|
onResolved: (updated) => {
|
|
if (!isStreamWritable(res, null)) {
|
|
return;
|
|
}
|
|
writeResponsesAttachment(
|
|
res,
|
|
tracker,
|
|
buildResponsesAttachment(updated, toolCallId),
|
|
metadata,
|
|
);
|
|
},
|
|
});
|
|
|
|
return fileMetadata;
|
|
})().catch((error) => {
|
|
logger.error('Error processing code output:', error);
|
|
return null;
|
|
}),
|
|
);
|
|
}
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Project a file metadata record into the Open Responses attachment
|
|
* shape. Mirrors the legacy inline projection but adds `status` and
|
|
* `previewError` so deferred preview updates carry the lifecycle
|
|
* signal the client uses to upsert by `file_id`.
|
|
*/
|
|
function buildResponsesAttachment(fileMetadata, toolCallId) {
|
|
return {
|
|
file_id: fileMetadata.file_id,
|
|
filename: fileMetadata.filename,
|
|
type: fileMetadata.type,
|
|
url: fileMetadata.filepath,
|
|
width: fileMetadata.width,
|
|
height: fileMetadata.height,
|
|
tool_call_id: toolCallId,
|
|
text: fileMetadata.text ?? null,
|
|
textFormat: fileMetadata.textFormat ?? null,
|
|
status: fileMetadata.status,
|
|
previewError: fileMetadata.previewError,
|
|
};
|
|
}
|
|
|
|
const ALLOWED_LOG_LEVELS = new Set(['debug', 'info', 'warn', 'error']);
|
|
|
|
function agentLogHandler(_event, data) {
|
|
if (!data) {
|
|
return;
|
|
}
|
|
const logFn = ALLOWED_LOG_LEVELS.has(data.level) ? logger[data.level] : logger.debug;
|
|
const meta = typeof data.data === 'object' && data.data != null ? data.data : {};
|
|
logFn(`[agents:${data.scope ?? 'unknown'}] ${data.message ?? ''}`, {
|
|
...meta,
|
|
runId: data.runId,
|
|
agentId: data.agentId,
|
|
});
|
|
}
|
|
|
|
function markSummarizationUsage(usage, metadata) {
|
|
const node = metadata?.langgraph_node;
|
|
if (typeof node === 'string' && node.startsWith(GraphNodeKeys.SUMMARIZE)) {
|
|
return { ...usage, usage_type: 'summarization' };
|
|
}
|
|
return usage;
|
|
}
|
|
|
|
const agentLogHandlerObj = { handle: agentLogHandler };
|
|
|
|
/**
|
|
* Builds the three summarization SSE event handlers.
|
|
* In streaming mode, each event is forwarded to the client via `res.write`.
|
|
* In non-streaming mode, the handlers are no-ops.
|
|
* @param {{ isStreaming: boolean, res: import('express').Response }} opts
|
|
*/
|
|
function buildSummarizationHandlers({ isStreaming, res }) {
|
|
if (!isStreaming) {
|
|
const noop = { handle: () => {} };
|
|
return { on_summarize_start: noop, on_summarize_delta: noop, on_summarize_complete: noop };
|
|
}
|
|
const writeEvent = (name) => ({
|
|
handle: async (_event, data) => {
|
|
if (!res.writableEnded) {
|
|
res.write(`event: ${name}\ndata: ${JSON.stringify(data)}\n\n`);
|
|
}
|
|
},
|
|
});
|
|
return {
|
|
on_summarize_start: writeEvent('on_summarize_start'),
|
|
on_summarize_delta: writeEvent('on_summarize_delta'),
|
|
on_summarize_complete: writeEvent('on_summarize_complete'),
|
|
};
|
|
}
|
|
|
|
module.exports = {
|
|
ModelEndHandler,
|
|
agentLogHandler,
|
|
agentLogHandlerObj,
|
|
getDefaultHandlers,
|
|
createToolEndCallback,
|
|
isStreamWritable,
|
|
markSummarizationUsage,
|
|
buildSummarizationHandlers,
|
|
createResponsesToolEndCallback,
|
|
};
|