Get metadata and information about a PDF file without reading its content. Use this tool when the user asks about PDF properties like: number of pages, file size, title, author, creation date, PDF version, or other document information. This is faster than extract_text for just getting file info.
Part of the Parseflow server.
Free to start. No card required.
AI agents call get_metadata to retrieve information from Parseflow 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 get_metadata 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": {
"get_metadata": {}
}
}See the full Parseflow policy for all 23 tools.
These attack patterns abuse exactly the kind of access get_metadata 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.
Get metadata and information about a PDF file without reading its content. Use this tool when the user asks about PDF properties like: number of pages, file size, title, author, creation date, PDF version, or other document information. This is faster than extract_text for just getting file info.. It is categorised as a Read tool in the Parseflow MCP Server, which means it retrieves data without modifying state.
Register the Parseflow MCP server in PolicyLayer and add a rule for get_metadata: 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 Parseflow. Nothing to install.
get_metadata 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_metadata 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_metadata. 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_metadata is provided by the Parseflow MCP server (parseflow-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 23 Parseflow tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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