Generate signed download URLs for specific backup files
AI agents call sitebay_backup_get_download_urls to retrieve information from SiteBay MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool generates download URLs for existing backup files, which is a read operation that retrieves pre-existing data. It does not create, modify, delete, or execute any operations. Severity is low because URL generation alone has no direct blast radius; the actual file access depends on what the user does with the URL afterward. The 'signed' aspect indicates proper access control is in place.
From the tool's definition Tool name contains 'get' and description states 'Generate signed download URLs' — this retrieves file metadata/URLs without modifying, deleting, or executing operations.
Attacks that exploit this kind of access
Generate signed download URLs for specific backup files. It is categorised as a Read tool in the SiteBay MCP Server MCP Server, which means it retrieves data without modifying state.
Register the SiteBay MCP Server MCP server in PolicyLayer and add a rule for sitebay_backup_get_download_urls: 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 SiteBay MCP Server. Nothing to install.
sitebay_backup_get_download_urls 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 sitebay_backup_get_download_urls 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 sitebay_backup_get_download_urls. 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.
sitebay_backup_get_download_urls is provided by the SiteBay MCP Server MCP server (sitebay/sitebay-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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