Get detailed chargeback information. Includes transaction dates/types and
AI agents call get_chargebacks_detail to retrieve information from Marqeta DiVA API 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 queries existing financial data (chargeback details) without creating, modifying, or deleting records. It poses medium severity because exposure of detailed chargeback and transaction information could enable unauthorized financial intelligence gathering or fraud analysis, but does not directly affect the financial system's state or allow fund movements.
From the tool's definition Tool name 'get_chargebacks_detail' and description 'Get detailed chargeback information' indicate a retrieval/query operation with no modification or deletion of data.
Attacks that exploit this kind of access
Get detailed chargeback information. Includes transaction dates/types and. It is categorised as a Read tool in the Marqeta DiVA API MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Marqeta DiVA API MCP Server MCP server in PolicyLayer and add a rule for get_chargebacks_detail: 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 Marqeta DiVA API MCP Server. Nothing to install.
get_chargebacks_detail 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_chargebacks_detail 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_chargebacks_detail. 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_chargebacks_detail is provided by the Marqeta DiVA API MCP Server MCP server (zvika-finally/marqeta-diva-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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