AI agents call get_subtitles to retrieve information from Bilibili Video Info MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves subtitle information from a video without any side effects. It performs a simple data query operation comparable to a search or fetch, with no ability to modify, delete, or execute operations. The blast radius of misuse is minimal—at worst, an agent could retrieve subtitles they shouldn't have access to, which is a read-level information disclosure risk.
From the tool's definition Tool name 'get_subtitles' and description 'Get subtitles from a Bilibili video' indicate retrieval of subtitle data with no modification, deletion, or execution capabilities.
Documented attack patterns abuse exactly the kind of access get_subtitles gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Bilibili Video Info MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_subtitles:
{
"version": "1",
"default": "deny",
"tools": {
"get_subtitles": {}
}
}get_subtitles is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get subtitles from a Bilibili video. It is categorised as a Read tool in the Bilibili Video Info MCP MCP Server, which means it retrieves data without modifying state.
Register the Bilibili Video Info MCP server in PolicyLayer and add a rule for get_subtitles: 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 Bilibili Video Info MCP. Nothing to install.
get_subtitles 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 get_subtitles 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 get_subtitles. 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.
get_subtitles is provided by the Bilibili Video Info MCP server (lesir831/bilibili-video-info-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Bilibili Video Info MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
3 Bilibili Video Info MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.