Calculate the unique hash of a transaction using transaction parameters.
AI agents call calcular_hash_transaccion to retrieve information from MIST Cash MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Calculating a hash is a deterministic, read-only computation. It does not send funds, modify state, or trigger any external operations. The result is a derived value from the input parameters. Low severity as misuse has minimal blast radius.
From the tool's definition 'Calculate the unique hash of a transaction using transaction parameters' — this is a pure computation/read operation that derives a hash value from inputs without modifying any state.
Attacks that exploit this kind of access
Calculate the unique hash of a transaction using transaction parameters. It is categorised as a Read tool in the MIST Cash MCP Server MCP Server, which means it retrieves data without modifying state.
Register the MIST Cash MCP Server MCP server in PolicyLayer and add a rule for calcular_hash_transaccion: 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 MIST Cash MCP Server. Nothing to install.
calcular_hash_transaccion 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 calcular_hash_transaccion 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 calcular_hash_transaccion. 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.
calcular_hash_transaccion is provided by the MIST Cash MCP Server MCP server (joadataarg/mcp-mistcash). 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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