visual_loop.cancel

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

Annotations already indicate this is not read-only, not idempotent, and not destructive, but the description adds little behavioral context beyond 'Risk: standard' and generic requirements. It does not disclose what canceling a loop does, whether it is reversible, or what side effects occur.

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 short and front-loaded with the command name, but the opening phrase mostly repeats the title. The risk, maturity, and requirements are compactly stated, though they do not substitute for a functional explanation.

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 tool with five parameters, an output schema, and no clearly explained purpose, this description is not complete enough for an agent to call it correctly. It lacks what visual loop cancellation means, how loopId should be obtained, and when it is appropriate to cancel.

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 coverage is 60%, and the description adds no parameter-level meaning. The key parameter loopId has no description in the schema and none in the description, so an agent cannot tell what identifier to supply or where it comes from.

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 only restates the tool as 'PartMe Blender Harness command `visual_loop.cancel`' without stating what the command does. The verb 'cancel' appears only in the name/title, so the description itself is essentially tautological and does not explain that it cancels a visual loop.

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 provides no guidance on when to use this tool versus siblings such as blender_visual_loop_create, blender_visual_loop_status, or blender_job_cancel. It mentions requirements and risk, but not the situations in which cancel should be invoked.

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