This record as markdown: /tools/io-github-2s-io-mcp/store.blob-list.md
What store.blob-list does on Mcp
AI agents call store.blob-list to retrieve information from Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why store.blob-list is rated Low
This tool retrieves and enumerates stored blobs/files without side effects. It is a straightforward Read operation with minimal risk if misused by an agent, as it cannot modify, delete, or execute anything. The incomplete description confirms it's a simple listing utility.
From the tool's definition Tool name 'store.blob-list' and description indicate a listing operation ('list the files'). No modification, deletion, execution, or financial operation is performed—only retrieval of file metadata/names.
Attacks that exploit this kind of access
The rule that runs store.blob-list safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For store.blob-list, this is the rule to start with:
store.blob-list 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 Mcp, apply this rule, and every store.blob-list call is checked against it from then on.
Questions about store.blob-list
STORE: list the files you\. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.
Register the MCP server in PolicyLayer and add a rule for store.blob-list: 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. Nothing to install.
store.blob-list 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 store.blob-list 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 store.blob-list. 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.
store.blob-list is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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