download_attachment
AI agents call download_attachment to retrieve information from MCP Atlassian without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and exports attachment files from Atlassian Cloud products. The action is read-only with no side effects—it merely accesses and downloads existing data. Confidence is slightly reduced due to empty description, but the tool name and sibling context strongly indicate data retrieval functionality.
From the tool's definition Tool name 'download_attachment' and context as a sibling to other read-only tools (download_attachments, get_attachments, get_comments, get_agile_boards, get_all_projects, batch_get_changelogs).
Attacks that exploit this kind of access
download_attachment. It is categorised as a Read tool in the MCP Atlassian MCP Server, which means it retrieves data without modifying state.
Register the MCP Atlassian MCP server in PolicyLayer and add a rule for download_attachment: 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 MCP Atlassian. Nothing to install.
download_attachment 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 download_attachment 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 download_attachment. 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.
download_attachment is provided by the MCP Atlassian MCP server (sooperset/mcp-atlassian). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.