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

Annotations already indicate this is a mutating operation (readOnlyHint: false), and the description repeats that by saying 'Create'. It adds no extra behavioral context such as permission requirements, idempotency, side effects, or whether existing names are rejected. The description is minimal and does not disclose anything beyond what annotations imply.

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 compact and front-loaded with the main purpose. The Args section is minimal and adds needed parameter context. No wasted words, though the wording of parameter definitions could be more informative.

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 operation with only two parameters and an output schema, the description is adequate for invoking the tool correctly. However, it lacks any guidance on when to use it, potential errors, or relationships to sibling tools, which would make it more contextually 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 coverage is 0%, so the description must compensate. It lists both parameters with brief definitions ('Project name', 'Optional description'), but these are largely tautological. It does clarify that description is optional, which adds slight value beyond the default '', but it does not elaborate on format, constraints, or validation rules.

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 'Create a new project' uses a specific verb and resource, clearly distinguishing it from siblings like create_node, update_project, and delete_project. No ambiguity in what the tool does.

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?

No guidance on when to use this tool versus alternatives, no prerequisites, and no exclusions. The only usage hint comes from the tool name and description, which is not sufficient for choosing between create_project and update_project in context.

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