getCustomWorkoutUpload

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

With no annotations provided, the description carries the full burden for behavioral disclosure. It indicates a read-like operation by returning a URL, but it does not mention whether the URL is pre-signed, expires, requires authentication, or has any prerequisites. For a simple getter, the description is adequate but not rich in behavioral context.

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 a single sentence that is front-loaded with the action and resource. Every word is meaningful, with no unnecessary elaboration.

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 simple tool with no input parameters and no output schema, the description covers the primary purpose and return value (an S3 URL). However, it leaves out minor contextual details such as whether the URL is user-specific, temporary, or requires the user to have uploaded custom workouts. Still, it is largely complete given the tool's low complexity.

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 the schema is empty with 100% coverage. Per the rule, baseline is 4 when there are no parameters. The description does not need to add parameter meaning, and it does not.

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 clearly states a specific action: 'Get S3 URL for downloading custom workouts.' It identifies the resource (custom workouts) and the outcome (an S3 URL). However, it does not explicitly distinguish itself from the sibling tool 'downloadCustomWorkoutsFromS3', which also relates to downloading custom workouts, so the differentiation is only implicit through the word 'URL'.

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?

No guidance is provided on when to use this tool versus the sibling tools like downloadCustomWorkoutsFromS3, uploadCustomWorkout, or deleteCustomWorkout. The description gives no context about prerequisites, alternatives, or exclusions.

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