Get the volume distribution (sets) by muscle group in the current training cycle.
AI agents call get_volume_by_muscle to retrieve information from Arvo MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves workout volume metrics from the fitness tracking system. It performs a read-only data lookup operation with no capability to modify, delete, or execute external actions. The blast radius of misuse is minimal—an agent could only retrieve fitness tracking information already associated with the user.
From the tool's definition Tool name includes 'get_' prefix and description states 'Get the volume distribution' — retrieves data about sets and muscle groups with no modification or side effects.
Attacks that exploit this kind of access
Get the volume distribution (sets) by muscle group in the current training cycle. It is categorised as a Read tool in the Arvo MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Arvo MCP Server MCP server in PolicyLayer and add a rule for get_volume_by_muscle: 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 Arvo MCP Server. Nothing to install.
get_volume_by_muscle 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_volume_by_muscle 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_volume_by_muscle. 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_volume_by_muscle is provided by the Arvo MCP Server MCP server (khaoss85/arvo-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.
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