Fetch video subtitles. You should automatically try to correct any ASR errors in the returned text.
AI agents call get_bilibili_subtitle to retrieve information from Bilibili Subtitle Fetch without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves subtitle data from Bilibili videos. It performs a read-only query operation with no capability to modify, delete, or execute code. The ASR error correction is client-side text processing of already-retrieved data. Blast radius is minimal—misuse results in unauthorized access to publicly/licensed subtitle content at worst, not system compromise or data destruction.
From the tool's definition Tool name 'get_bilibili_subtitle' and description 'Fetch video subtitles' indicates data retrieval with no side effects. The instruction to 'automatically try to correct any ASR errors' is post-processing of retrieved data, not a write operation.
Documented attack patterns abuse exactly the kind of access get_bilibili_subtitle gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Bilibili Subtitle Fetch, and nothing reaches the server without passing your rules. This is the rule we recommend for get_bilibili_subtitle:
{
"version": "1",
"default": "deny",
"tools": {
"get_bilibili_subtitle": {}
}
}get_bilibili_subtitle is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
Fetch video subtitles. You should automatically try to correct any ASR errors in the returned text. It is categorised as a Read tool in the Bilibili Subtitle Fetch MCP Server, which means it retrieves data without modifying state.
Register the Bilibili Subtitle Fetch MCP server in PolicyLayer and add a rule for get_bilibili_subtitle: 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 Subtitle Fetch. Nothing to install.
get_bilibili_subtitle 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_bilibili_subtitle 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_bilibili_subtitle. 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_bilibili_subtitle is provided by the Bilibili Subtitle Fetch MCP server (initsnow/bilibili-subtitle-fetch). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Bilibili Subtitle Fetch, 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 Subtitle Fetch tools catalogued and risk-classified — across an index of 43,000+ MCP servers.