create_exercise_template · Hevy MCP: Risk & Policy

WHAT IT DOES

What create_exercise_template does on Hevy

AI agents use create_exercise_template to create or update resources in Hevy — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Hevy environment.

WHY IT NEEDS A POLICY

Why create_exercise_template needs a policy

The tool creates a new exercise template, which is a reversible Write operation. It modifies the user's fitness data by adding a new template record. Severity is medium because misuse could clutter the user's exercise library or create invalid templates, but the effect is not destructive (templates can be deleted) and carries no financial impact.

From the tool's definition Tool name 'create_exercise_template' indicates data creation. Description is empty, limiting confidence. Context from server description shows this is part of the Hevy fitness API covering exercise management alongside other creation endpoints like…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_exercise_template Rate-limited

create_exercise_template stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_exercise_template": {
      "limits": [
        {
          "counter": "create_exercise_template_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Hevy, so you can run agents against it safely.

FAQ

Questions about create_exercise_template

What does the create_exercise_template tool do? +

create_exercise_template. It is categorised as a Write tool in the Hevy MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_exercise_template? +

Register the Hevy MCP server in PolicyLayer and add a rule for create_exercise_template: 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 Hevy. Nothing to install.

What risk level is create_exercise_template? +

create_exercise_template is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_exercise_template? +

Yes. Add a rate_limit block to the create_exercise_template 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.

How do I block create_exercise_template completely? +

Set action: deny in the PolicyLayer policy for create_exercise_template. 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.

What MCP server provides create_exercise_template? +

create_exercise_template is provided by the Hevy MCP server (srdjancodes/hevy-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.