Create a Canva folder

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

Annotations already declare the safety profile (readOnly=false, destructive=false, idempotent=false, openWorld=true). The description adds the useful cost trait ('Free') and the default location, but it does not warn that the operation is non-idempotent (duplicate folders on repeat calls), which the annotations flag but do not explain.

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 short and front-loads the core action, but the final sentence ('save_to_canva's folderId then files renders into it') is garbled and forces the agent to parse an awkward clause to extract the workflow hint.

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 creation tool with full schema coverage, no output schema, and annotations covering the safety profile, the description is largely sufficient. Only the missing duplicate/idempotency note and the awkward phrasing keep it from being fully complete.

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 both parameters are already documented. The description restates the parentFolderId default as 'Projects', which slightly diverges from the schema's 'root (default)' wording and adds marginal clarity rather than new semantics.

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 – 'Create a folder in the user's Canva' – and clarifies the default location (Projects). It implies the distinction from list_canva_folder and save_to_canva by describing creation vs. usage, though it never names the siblings explicitly.

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 gives clear context: create a folder, then use the returned id as save_to_canva's folderId to render files into it. This workflow linkage is helpful, but there is no explicit 'when not to use' or comparison to sibling folder tools.

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