Get cards assigned to a specific spending ruleset. Results are paginated.
AI agents call pex_get_spending_ruleset_cards to retrieve information from PEX MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists cards associated with a spending ruleset. It is a read-only operation that returns information without side effects. The pagination mechanism confirms it is a data retrieval tool. No data is created, modified, deleted, or executed. Therefore, it falls into the Read category with low severity since exposure would only allow viewing of business card and ruleset information.
From the tool's definition Tool name and description indicate retrieval of cards assigned to a spending ruleset with pagination support. No modification, deletion, or execution of operations occurs—purely querying existing data.
Attacks that exploit this kind of access
Get cards assigned to a specific spending ruleset. Results are paginated. It is categorised as a Read tool in the PEX MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PEX MCP Server MCP server in PolicyLayer and add a rule for pex_get_spending_ruleset_cards: 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 PEX MCP Server. Nothing to install.
pex_get_spending_ruleset_cards 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 pex_get_spending_ruleset_cards 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 pex_get_spending_ruleset_cards. 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.
pex_get_spending_ruleset_cards is provided by the PEX MCP Server MCP server (pexcard/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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