Version 2.4.6 | Jan 29, 2026
Overview
ZBrain Builder release 2.4.6 enhances agent collaboration, knowledge accuracy, and operational efficiency. Highlights include shared scratchpads for coordinated agent execution, retrieval testing to validate knowledge before production, and native EML email ingestion for broader knowledge coverage. Real-time Microsoft Teams alerts improve visibility into flow failures, while simplified configurations for Google Sheets, Google Drive, and MCP reduce setup friction. Together, these updates deliver faster setup, cleaner execution, and greater confidence at scale.
ZBrain Builder 2.4.6 release overview
Flows & Pieces
Auto-discovery of public Google Sheets and worksheets via dropdown selection.
Quicker, more reliable agent configuration by eliminating manual ID entry and setup errors.
Auto-discovery of public Google Drive folders via dropdown selection.
Faster, simpler, and error-free queue configuration without manual folder ID entry.
Real-time Microsoft Teams alerts for flow execution failures.
Immediate failure visibility, faster incident response, and reduced operational monitoring effort.
Agents
Shared, execution-scoped scratchpad for agent crews.
Cleaner multi-agent collaboration with controlled context sharing and predictable execution outcomes.
Single-field MCP connection via Server URL.
Faster, consistent MCP setup with reduced configuration complexity and errors.
AI-powered instruction generator in Agent Crew
Adds a “Generate” option to the Agent Crew instruction panel, enabling users to auto-generate or refine agent instructions using contextual input.
Optimized deep research output in the agent crew
Enhances the Deep Research tool to deliver succinct, resolution-focused insights within Agent Crew.
Multi-document upload and management in the agent dashboard
Allows users to upload, view, and manage up to 10 documents simultaneously within the Agent Dashboard
RAG
Pre-deployment retrieval testing with basic and agentic methods.
Higher knowledge accuracy, faster optimization, and greater confidence before production use.
Native EML (email) file ingestion for knowledge bases.
Richer, more complete knowledge coverage by seamlessly incorporating email communications into existing workflows.
New features
Flows
Google Sheet source selection via dropdown
ZBrain Builder now simplifies Google Sheet configuration by automatically fetching and displaying accessible public spreadsheets and worksheet names in a searchable dropdown. This enhancement removes the need to manually enter sheet or spreadsheet IDs, reducing setup errors and improving usability when creating or updating agent queues.
Navigation: ZBrain Builder → Agent → Create New → Create Agent → Create Queue → Add an Input Source → Google Sheet
Key outcomes:
Eliminates manual entry of spreadsheet and sheet IDs, significantly reducing agent configuration time.
Prevents incorrect or invalid ID inputs, improving workflow reliability.
Makes selection intuitive, even at scale, with human-readable sheet names and searchable dropdowns
Enables quick switching or updating of data sources without rework.
Ensures uniform data source selection across new and existing queues with clear validation and error handling.
Google Drive folder selection via dropdown
ZBrain Builder now streamlines Google Drive ingestion by automatically listing accessible public folders in a searchable dropdown when a Google Drive connection is selected. This enhancement removes the need for manual folder ID entry, making queue configuration faster, more intuitive, and less error-prone for both new and existing agents.
Navigation: ZBrain Builder→ Agent → Create New → Create Agent → Create Queue → Add an Input Source → Google Drive
Key outcomes
Eliminates manual folder ID input, reducing friction during agent and queue creation and accelerating setup time.
Prevents invalid or mismatched folder IDs, improving ingestion reliability.
Human-readable folder names with search and scroll enable quick selection, even with large folder lists.
Allows teams to update or switch drive folders without reconfiguring connections easily.
Delivers uniform behavior across new queue creation and existing queue updates, with clear error handling for failed connections.
Microsoft Teams notifications for Flow failures
ZBrain Builder now proactively alerts users to flow execution failures by sending real-time notifications to a configured Microsoft Teams channel. This capability eliminates the need for manual monitoring, enabling faster issue detection, quicker remediation, and improved operational reliability.
Navigation: ZBrain Builder → Flows → All Flows → Flow List → Failure Notification Toggle
Key outcomes
Allows teams to identify and act on issues as soon as they occur with instant failure alerts.
Ensures critical execution issues are not missed.
Removes the need for users to constantly check flow execution status manually.
Helps teams diagnose and resolve issues faster with detailed failure information (step, error, timestamp)
Agents
Direct MCP library access for tool addition
ZBrain improves the MCP integration experience by simplifying how users add tools. The existing “Add Tool” action is renamed for clarity and now routes users directly to the MCP Library, removing unnecessary intermediate options and ensuring a consistent, guided workflow.
Navigation: ZBrain → Top Right Gear Icon → MCP → New MCP Server
Key outcomes
Makes the action self-explanatory and reduces confusion due to renaming the button to “Add from Library” or “Add from MCP Library”
Eliminates extra clicks and reduces setup time by providing direct access to the MCP Library.
Prevents incorrect or unsupported configuration paths, as the “From piece” option is removed.
Supports standardized, controlled integrations due to centralizing tool selection through the MCP library
MCP card enhancements
Shared scratchpad for Agent Crews
ZBrain Builder introduces a shared scratchpad at the crew level, enabling agents within the same crew to exchange intermediate context, plans, and summaries during a single execution. This capability supports structured collaboration between agents while ensuring execution-specific data remains isolated and does not pollute long-term agent context.
Navigation: ZBrain → Agents → Create New → Create Agent Crew → Define Crew Structure
Key outcomes
Agents can seamlessly share intermediate insights and handoffs, enabling more coordinated and intelligent execution.
Temporary scratchpads prevent cross-agent context leakage and avoid contaminating persistent agent memory.
Structured read/write patterns reduce ambiguity in how agents pass information during execution.
Scratchpad interactions are captured in execution logs, supporting traceability and debugging.
Encourages modular agent design with clear responsibilities, improving scalability and maintainability of agent crews.
RAG
Retrieval testing for knowledge bases
ZBrain now enables users to test and validate Knowledge Base retrieval using both basic and agentic retrieval methods. This feature allows teams to evaluate how effectively their knowledge responds to real queries before using it in production agents or flows.
Navigation: ZBrain → Knowledge → Pre-Created Knowledge → Retrieval Testing
Key outcomes
Users can validate the relevance and accuracy of retrievals early, reducing downstream errors in agent responses.
Side-by-side testing of basic and agentic retrieval helps teams quickly identify gaps and refine content or tuning strategies.
Pre-flight testing ensures the Knowledge Base behaves as expected under real query conditions.
Every test is logged with query details and timestamps, enabling traceability and iterative improvement.
Catch retrieval issues upfront, minimizing rework and support overhead.
Enhancements
Agents
Simplified the MCP connect tab with the server URL
ZBrain Builder now streamlines the MCP connection experience by simplifying the connect tab to display only the server URL. All other connection options are removed from view, ensuring a focused, consistent, and confusion-free setup for both new and existing MCP configurations.
Navigation: ZBrain → Top Right Gear Icon → Settings-> MCP → Open Existing MCP / Create New → Connect Tab
Key outcomes
Minimizes cognitive load and setup friction with a single, focused server URL view
Users land directly on the required connection field without extra navigation.
Removes unused or unsupported options and prevents incorrect connection choices.
The simplified Connect tab remains the same across sessions and applies to all existing MCPs.
Standardizes MCP connections across teams, making support and maintenance easier.
RAG
EML (Email) file support as a knowledge source
ZBrain Builder now supports EML (email) files as a knowledge source, enabling users to ingest email content alongside existing document formats. This enhancement enables teams to include critical email communications, decisions, and discussions directly into their knowledge bases without altering existing workflows.
Navigation: ZBrain → Knowledge → Create New / Update Existing
Key outcomes
Enables ingestion of email conversations, improving the completeness and relevance of enterprise knowledge bases.
EML files behave like any other supported document type, requiring no special handling or additional steps.
Automatic email-aware chunking accelerates setup while preserving flexibility for advanced tuning.
Structured extraction of email metadata and body content ensures higher-quality knowledge indexing.
Existing knowledge creation and refinement steps continue to function unchanged, reducing adoption friction.
Last updated