List media files in your Cosmic bucket.
AI agents call list_media to retrieve information from Cosmic MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and enumerates media files without creating, modifying, deleting, or executing operations. It is a standard read operation with minimal blast radius if misused by an AI agent (e.g., information disclosure limited to media inventory already accessible within the bucket).
From the tool's definition Tool name is 'list_media' and description states it 'List[s] media files in your Cosmic bucket' — a query/retrieval operation with no modification or deletion semantics.
Attacks that exploit this kind of access
List media files in your Cosmic bucket. It is categorised as a Read tool in the Cosmic MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Cosmic MCP Server MCP server in PolicyLayer and add a rule for list_media: 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 Cosmic MCP Server. Nothing to install.
list_media 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 list_media 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 list_media. 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.
list_media is provided by the Cosmic MCP Server MCP server (patgpt/cosmic-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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