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

Beyond the readOnly/non-destructive annotations, it discloses the important behavioral trait that the tool returns a URL that must be fetched with TestMu AI credentials, rather than the raw bytes. It omits whether the URL expires or is time-limited, which is a meaningful gap for a download-URL tool.

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?

It is three tight sentences that front-load the core behavior and then state the required input and the optional scoping. Every sentence contributes and none can be removed without losing information.

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?

There is no output schema, so the description explains what is returned (URL plus size/status metadata). Combined with the input prerequisites and annotations, an agent has everything needed to call it correctly.

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?

Schema description coverage is 100%, so the three parameters are already documented. The description mostly restates them (artefactName provenance, taskId optionality) and adds little meaning beyond the schema text, fitting the baseline of 3.

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 uses a specific verb and resource: it returns an authenticated download URL for a named HyperExecute job artifact. It clearly routes to the sibling that lists artifact names (getHyperExecuteJobArtifacts) and distinguishes its own scope (one specific artifact rather than a listing).

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?

It states the prerequisite for artefactName (from getHyperExecuteJobArtifacts) and when to use the optional taskId (to scope to a task). It has clear context but does not explicitly say when to prefer the other sibling, getJobArtifactDetail.

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