delete_course

THE RISK

Critical Risk

This tool permanently removes user-created or saved courses from Garmin Connect, which is data that cannot be recovered once deleted. This matches the Destructive category definition: 'irreversibly deletes or overwrites data, or actions that cannot be undone.' The severity is high rather than critical because the impact is scoped to a single user's fitness data (not affecting systems, payments, or multiple users),…

From the tool's definition Tool name is 'delete_course' and description states 'Delete a course from Garmin Connect.' The verb 'delete' combined with the action of removing a course from the user's Garmin Connect account indicates irreversible data loss.

Documented attack patterns abuse exactly the kind of access delete_course gives an agent:

HOW TO CONTROL DELETE_COURSE

PolicyLayer is an MCP gateway — it sits between your AI agents and Garmin MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for delete_course:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "delete_course"
  ]
}

delete_course disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Garmin MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

More Garmin MCP Server tools

Destructive delete_food_log Delete a food log entry Permanently removes a logged food item from the nutrition Destructive delete_weigh_ins Delete weight measurements for a specific date Args: date: Date in YY Destructive delete_workout Delete a workout from Garmin Connect Permanently removes a workout from your Garm Destructive delete_workouts Delete multiple workouts from Garmin Connect in a single call Permanently removes Write remove_gear_from_activity Remove gear association from an activity Unlinks a specific piece of gear from an Write log_custom_food log_custom_food Write add_body_composition Add body composition data Args: date: Date in YYYY-MM-DD form Write add_gear_to_activity Associate gear with an activity Links a specific piece of gear (like shoes, bike,

All 126 Garmin MCP Server tools →

Destructive tools on other servers

Frida Game Hacking MCP clear_scan MegaMemory remove_concept Frida Agent MCP kill_app 1MCP Server mcp_uninstall

Go deeper

Critical-risk tools in Garmin MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

What does the delete_course tool do? +

Delete a course from Garmin Connect. Args: course_id: ID of the course to delete (get IDs from get_courses). It is categorised as a Destructive tool in the Garmin MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on delete_course? +

Register the Garmin MCP Server MCP server in PolicyLayer and add a rule for delete_course: 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 Garmin MCP Server. Nothing to install.

What risk level is delete_course? +

delete_course is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit delete_course? +

Yes. Add a rate_limit block to the delete_course 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 delete_course completely? +

Set action: deny in the PolicyLayer policy for delete_course. 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 delete_course? +

delete_course is provided by the Garmin MCP Server MCP server (taxuspt/garmin_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Garmin MCP Server tool call.

Deterministic rules across all 126 Garmin MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

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126 Garmin MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

// WHAT DELETE_COURSE ON GARMIN MCP SERVER DOES

// THE RISK

// HOW TO CONTROL DELETE_COURSE

// EXPLORE