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

Annotations already declare readOnlyHint=false, destructiveHint=false and idempotentHint=false, so the write/non-destructive/non-idempotent profile is covered structurally. The description contributes one genuinely useful piece of context beyond the annotations: the projects:write scope requirement. It does not mention duplicate-creation behavior implied by idempotentHint=false or what the call returns.

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?

Two short sentences with zero filler, and the core action is front-loaded before the permission note. Every sentence earns its place.

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 creation tool with no output schema and no annotations covering return behavior, the description covers the action and the auth requirement but omits anything about what the created project returns or duplicate-name handling. Adequate but with clear 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?

Schema description coverage is 100% across all 15 parameters, so the schema already explains each field, its constraints and enum values. The description adds no parameter-level detail such as required fields or date formats, which is acceptable given full coverage but not value-adding.

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?

States a specific verb and resource ('Create a new project'), which is unambiguous on its own. It does not, however, differentiate itself from the many closely named siblings such as bulk_create or the numerous create_project_* tools, so an agent must infer scope from the name alone.

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 only guidance is the required permission scope ('Requires projects:write scope'), which is an authorization prerequisite rather than usage guidance. Nothing says when to use this instead of bulk_create or the related create_project_* tools, and no when-not guidance is present.

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