sync_unibox
Import message history from every connected account (or one account_id) into the Unibox. Long-running (up to ~5 min) and idempotent; returns partial:true when the time budget ran out — call again to continue. Track it with get_unibox_sync_progress.
This record as markdown: /tools/digital-crew-technologies-max-mcp-server/sync-unibox.md
What sync_unibox does on Max MCP Server
AI agents call sync_unibox to retrieve information from Max MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why sync_unibox is rated Low
Even though sync_unibox only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs sync_unibox safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Max MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sync_unibox, this is the rule to start with:
sync_unibox is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Max MCP Server, apply this rule, and every sync_unibox call is checked against it from then on.
Questions about sync_unibox
Import message history from every connected account (or one account_id) into the Unibox. Long-running (up to ~5 min) and idempotent; returns partial:true when the time budget ran out — call again to continue. Track it with get_unibox_sync_progress. It is categorised as a Read tool in the Max MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Max MCP Server MCP server in PolicyLayer and add a rule for sync_unibox: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Max MCP Server. Nothing to install.
sync_unibox is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the sync_unibox rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for sync_unibox. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
sync_unibox is provided by the Max MCP Server MCP server (digital-crew-technologies/max-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Max MCP Server, and thousands of servers like it.
This server
Across the catalogue