获取存储桶元数据
AI agents call tos_get_bucket_meta to retrieve information from TOS 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 bucket metadata information without creating, modifying, deleting, or executing any operations. It is purely informational and read-only, placing it in the Read category with low severity as metadata disclosure has minimal immediate impact compared to other operations on this server like delete_bucket or put_object.
From the tool's definition Tool name 'tos_get_bucket_meta' and description '获取存储桶元数据' (retrieve bucket metadata) indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
获取存储桶元数据. It is categorised as a Read tool in the TOS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the TOS MCP Server MCP server in PolicyLayer and add a rule for tos_get_bucket_meta: 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 TOS MCP Server. Nothing to install.
tos_get_bucket_meta 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 tos_get_bucket_meta 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 tos_get_bucket_meta. 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.
tos_get_bucket_meta is provided by the TOS MCP Server MCP server (jneless/tos-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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