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

The annotations already declare readOnlyHint=false and destructiveHint=false, so creation is understood. The description adds non-obvious behavioral defaults: omitting parentReference means workspace root, and the default type changes from project at root to folder when nested. It does not mention possible side effects or return values, but the core behavior is clearly disclosed.

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 only two sentences and each sentence adds meaningful information. There is no wasted wording, and the most important purpose is front-loaded.

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 simple create tool with three scalar parameters and no output schema, the description covers essential placement and type-default behavior. A full list of allowed type values or explicit creation-response expectations would improve completeness, but the description is not misleading or materially incomplete.

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%, so the description must compensate. It explains the meaningful semantics of parentReference (workspace root when absent) and type (project at root, folder when nested). The required 'name' parameter is left implicit, and possible type values are not enumerated, but the most non-trivial parameter behavior is surfaced.

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 begins with a specific verb and resource ('Create folder/project') and gives useful placement context about workspace root and nested behavior. It clearly distinguishes from the folder CRUD siblings, though it does not explicitly differentiate from other creation tools like spaces_create or library_create.

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 implies when to use the tool by naming 'folder/project', and it provides context about root versus nested creation via parentReference. However, it does not explicitly state when this tool should be chosen over alternatives or describe exclusions.

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