Set or update the name of an activity. Args: activity_id: ID of the activity to update activity_name: New activity name
AI agents use set_activity_name to create or update resources in Garmin MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Garmin MCP Server environment.
This tool creates or modifies data (renaming an activity) in a reversible manner. The change can be undone by renaming again. It does not execute code, delete data irreversibly, or trigger financial transactions. It is a straightforward Write operation with minimal blast radius—misuse would only result in incorrect activity names in the user's fitness data.
From the tool's definition Tool description explicitly states 'Set or update the name of an activity' with parameters for activity_id and activity_name. The verb 'update' indicates modification of existing data.
Documented attack patterns abuse exactly the kind of access set_activity_name gives an agent:
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 set_activity_name:
{
"version": "1",
"default": "deny",
"tools": {
"set_activity_name": {
"limits": [
{
"counter": "set_activity_name_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}set_activity_name 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.
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Set or update the name of an activity. Args: activity_id: ID of the activity to update activity_name: New activity name. It is categorised as a Write tool in the Garmin MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Garmin MCP Server MCP server in PolicyLayer and add a rule for set_activity_name: 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.
set_activity_name is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the set_activity_name 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 set_activity_name. 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.
set_activity_name 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.
Deterministic rules across all 126 Garmin MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
126 Garmin MCP Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.