movel_x

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

With no annotations, the description carries the full burden. It mentions the move direction and distance units, but discloses no behavioral traits such as blocking behavior, acceleration profiles, error handling, or whether negative distances reverse the direction. This is insufficient for a robot control 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?

The description is a single sentence with parameter explanations, making it concise and front-loaded. It wastes no words, though it could be more structured with separate sections for behavior and parameters.

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?

Given the complexity of a robot movement tool, the description is incomplete. It does not explain return values (no output schema), synchronization behavior, prerequisites (e.g., robot must be connected), or potential side effects. Annotations are absent, leaving many gaps.

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 description adds meaning to the two parameters: IP is the robot address, distance is in meters. This is helpful since the schema has no parameter descriptions. However, it does not specify expected formats (e.g., IP address format) or range constraints for distance, which would improve usability.

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 the tool moves a robot's TCP along the X-axis, with IP and distance parameters. It distinguishes from siblings like movel_y and movel_z by specifying the axis. However, it does not explicitly state that this is a linear move (as 'movel' implies), which could be deduced from the name.

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 given on when to use this tool versus alternatives like movel (general linear move) or movel_y/movel_z. The description lacks context for selection based on desired axis of movement or other criteria.

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