Extract Subtitles — Extract embedded subtitles from MKV/MP4 video. Video And Audio Studio run — processes in the browser but uses more credits per run than the Document / Image / Scanner workspaces. Welcome credits cover a limited number of runs. Day Pass does not include this workspace. All thre...
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AI agents call mio_video_extract_subtitles to retrieve information from MiOffice — AI-Powered Workspace Studio without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though mio_video_extract_subtitles only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"mio_video_extract_subtitles": {}
}
}See the full MiOffice — AI-Powered Workspace Studio policy for all 133 tools.
These attack patterns abuse exactly the kind of access mio_video_extract_subtitles gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Extract Subtitles — Extract embedded subtitles from MKV/MP4 video. Video And Audio Studio run — processes in the browser but uses more credits per run than the Document / Image / Scanner workspaces. Welcome credits cover a limited number of runs. Day Pass does not include this workspace. All three credit-based workspaces unlock with the same one-time credit pack — there is no per-workspace subscription. See mioffice.ai/pricing for current plans.. It is categorised as a Read tool in the MiOffice — AI-Powered Workspace Studio MCP Server, which means it retrieves data without modifying state.
Register the MiOffice — AI-Powered Workspace Studio MCP server in PolicyLayer and add a rule for mio_video_extract_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 MiOffice — AI-Powered Workspace Studio. Nothing to install.
mio_video_extract_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 mio_video_extract_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 mio_video_extract_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.
mio_video_extract_subtitles is provided by the MiOffice — AI-Powered Workspace Studio MCP server (https://mioffice.ai/api/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 133 MiOffice — AI-Powered Workspace Studio tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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