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

Annotations already disclose that this is destructive, non-idempotent, non-read-only, and closed-world, so the description's lower burden is partly met. It adds that changes happen 'in place' and explains the upload_id approval-shortening workflow, but it does not explain destructive scope, partial edits, or validation behavior.

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-loads the core purpose in the first sentence. The second sentence is a specialized but useful workflow note, though it is somewhat niche relative to the many parameters the tool exposes.

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 15-parameter destructive path-editing tool with nested objects and low schema description coverage, the description is too thin. Annotations cover the safety profile, but key operational semantics for most parameters and editing behaviors are left undocumented.

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 only 13% for 15 parameters, so the description needs to compensate but does not. It mentions anchors/handles generally and the upload_id workflow, but gives no meaningful detail on the many point-editing parameters, coordinate_space, tension behavior, or how set/move/delete/insert operations interact.

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 states a specific verb and resource: 'Change a path's anchors and handles in place.' That clearly identifies an edit operation on an existing path, though it does not explicitly differentiate from sibling tools such as create_path, inspect_path, or smooth_path.

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 purpose implies this is for editing an existing path's anchors/handles, but the description gives no explicit when-to-use or when-not-to-use guidance versus sibling tools. The shell/upload workflow is a useful operational note, but it addresses only one invocation path rather than tool selection.

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