Convert multiple documents in a directory to a different format Args: source_dir: Directory containing source documents target_dir: Directory where converted documents should be saved target_format: Target format for conversion source_extensions: List of source file extensions to convert (default...
AI agents use batch_convert_documents to create or update resources in LibreOffice MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your LibreOffice MCP Server environment.
This tool creates new files (converted documents) in a specified directory, which constitutes data creation/modification with side effects. While the original documents are not modified, new files are written to the filesystem. This is a Write operation rather than Read (which would only retrieve data) or Execute (which would run arbitrary code).
From the tool's definition Tool performs batch conversion of multiple documents and saves converted documents to a target directory. The description explicitly states "Directory where converted documents should be saved" and the operation creates new files by converting existing ones.
Risk signalsBulk/mass operation — affects multiple targets
Documented attack patterns abuse exactly the kind of access batch_convert_documents gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and LibreOffice MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for batch_convert_documents:
{
"version": "1",
"default": "deny",
"tools": {
"batch_convert_documents": {
"limits": [
{
"counter": "batch_convert_documents_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}batch_convert_documents stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Convert multiple documents in a directory to a different format Args: source_dir: Directory containing source documents target_dir: Directory where converted documents should be saved target_format: Target format for conversion source_extensions: List of source file extensions to convert (default: common formats). It is categorised as a Write tool in the LibreOffice MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the LibreOffice MCP Server MCP server in PolicyLayer and add a rule for batch_convert_documents: 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 LibreOffice MCP Server. Nothing to install.
batch_convert_documents is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the batch_convert_documents 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 batch_convert_documents. 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.
batch_convert_documents is provided by the LibreOffice MCP Server MCP server (patrup/mcp-libre). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 14 LibreOffice MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
14 LibreOffice MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.