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OneMoeLine

Intervals.icu MCP Server

by OneMoeLine

Get activity power curve

get_activity_power_curve
Read-only

Retrieve the mean maximal power curve for a specific activity ID to analyze power output across durations.

Instructions

Get the mean maximal power curve for a specific activity.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
activity_idYesThe activity ID

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv1.0.0

TDQS

B3.2/5.0
Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered and the bar is lower. The description adds the specific meaning of the returned data ('mean maximal power curve'), but says nothing about return format, units, or whether the curve is time-windowed. With no output schema, a bit more behavioral detail would help.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

A single front-loaded sentence with no filler. It is efficiently sized, though notably under-specified rather than deliberately minimal.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple single-parameter read tool with annotations covering the safety profile, the essentials are present. The main gaps are the lack of distinction from get_power_curves and no indication of what the returned curve contains at a high level, which matters since there is no output schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100% for the single activity_id parameter, so the schema fully documents it. The description adds no syntax, format, or sourcing guidance for the ID, leaving the baseline 3 appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb ('Get') and resource ('mean maximal power curve') scoped to 'a specific activity', which is clearer than a bare title restatement. However, it offers no differentiation from the sibling get_power_curves, so an agent cannot tell from the description alone which of the two power-curve tools to pick.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no when-to-use context, no prerequisites, and does not name or distinguish itself from the obvious alternative (get_power_curves). Usage must be inferred entirely from the name.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.