motion_roll_profile

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

With no annotations, the description carries the full burden, and it discloses only one behavioral fact — that values past 80 degrees exceed the forearm's range. It never states whether this is a read or write operation, what it returns, or what the fbx input must be, leaving most behavior opaque.

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 a single compact sentence with no filler, and the core concept is front-loaded. However, the parenthetical is cryptic rather than clarifying, so brevity comes at the cost of comprehensibility.

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 two-parameter tool with no annotations, no output schema, and 0% schema coverage, the description does not supply enough for an agent to invoke it correctly. It neither explains the fbx input nor the side default, and omits return behavior entirely.

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 0% and the description never mentions the two parameters (fbx, side). The '0 thumb up' phrasing references a roll value, not a parameter, so neither parameter gains any meaning from the description.

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 identifies the subject — the hand's roll about its forearm through a clip — but offers no explicit verb or action (profile? measure? return?), so an agent cannot tell what the tool actually does versus merely names its domain. It also fails to distinguish itself from siblings motion_roll and motion_roll_set, which likely operate on the same concept.

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?

There is no when-to-use guidance, no prerequisites, and no reference to the obvious alternatives motion_roll or motion_roll_set despite their presence in the sibling list. The 80-degree note implies a constraint but not when this tool should be chosen.

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