AI agents call sync_project to retrieve information from Overleaf MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
sync_project retrieves the latest state of a project from Overleaf without creating, modifying, or deleting any data. It is a fetch operation with no side effects on the Overleaf project itself. Misuse could expose project contents to an unauthorized agent, but the blast radius is limited to information disclosure.
From the tool's definition Tool description states 'Pull latest changes from Overleaf' — a pull operation retrieves/syncs data without modifying the source or making irreversible changes.
Documented attack patterns abuse exactly the kind of access sync_project gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Overleaf MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for sync_project:
{
"version": "1",
"default": "deny",
"tools": {
"sync_project": {}
}
}sync_project is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Pull latest changes from Overleaf. It is categorised as a Read tool in the Overleaf MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Overleaf MCP Server MCP server in PolicyLayer and add a rule for sync_project: 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 Overleaf MCP Server. Nothing to install.
sync_project 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_project 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_project. 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_project is provided by the Overleaf MCP Server MCP server (younesbensafia/overleaf-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 4 Overleaf MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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4 Overleaf MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.