get_cycling_ftp

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

With no annotations provided, the description carries the behavioral disclosure burden. It clearly indicates a read-only, no-argument operation returning the latest cycling FTP estimate from Garmin, which is sufficient for a simple getter; it does not detail edge cases like missing data or sync delay, but the output schema covers return structure.

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

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

The description is very short and front-loaded, but the first sentence and second sentence partly restate the same idea ('Get the latest' vs. 'Returns the most recent'). Still, it is compact and easy to scan.

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

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

For a zero-parameter read with an output schema, the description is complete: it names the exact data (cycling FTP) and the recency behavior (latest estimate). No additional usage steps or preconditions are needed.

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

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

The tool has zero parameters and 100% schema description coverage, so there are no parameter semantics to document. The baseline of 4 applies because the description correctly implies no arguments are needed.

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

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

The description states a specific verb ('Get'), a resource ('cycling Functional Threshold Power data'), and a qualifier ('latest', 'from Garmin'). This clearly distinguishes the tool from sibling metric getters such as get_lactate_threshold or get_vo2max_trend.

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

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

The description implies the tool is appropriate when the agent needs the most recent cycling FTP estimate, but it does not explicitly state when to prefer it over alternatives or mention exclusions. Usage context is inferred from the tool name and wording rather than directly guided.

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