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

Annotations already declare the write/safety profile (readOnlyHint=false, destructiveHint=false, openWorldHint=true), so the bar is lower, yet the description adds two genuine side effects: the statuses requirement and the fact that the creator becomes project leader. It does not mention permission requirements or what happens on a duplicate project key.

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 tight sentences, front-loaded with the action and immediately followed by the two constraints that matter most; nothing is padded or repeated.

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?

An output schema exists and annotations cover the safety profile, so the description needn't explain return values. Given that, it is largely complete, covering the required structural input and the leadership side effect, though it omits error/duplicate-key behavior.

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% and each of name, key, and statuses is documented in the schema, so the baseline of 3 applies. The description only echoes that statuses are mandatory, adding no format or validation detail beyond the schema.

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 project') with an explicit scope ('in the connected account'), which cleanly separates it from siblings like create_task, create_tag, and update_project.

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 establishes a hard prerequisite ('You must define the workflow statuses'), which is useful context, but gives no guidance on when to create a project versus updating an existing one or checking list_projects first, and names no alternative tool.

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