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

Adds real behavior beyond the annotations: patch semantics (only supplied fields mutate) and the two failure modes (missing project, insufficient permission). However, the destructiveHint=true annotation is never elaborated — nothing says what is lost or whether changes can be reverted — so it falls short of a 5.

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?

Three short sentences, front-loaded with the action and scope, zero redundancy. Every sentence carries a distinct fact: scope, patch behavior, failure modes.

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?

No output schema exists, yet the description covers the mutation's effect and error conditions; only the success return shape is unstated, which is a minor gap for a three-field update tool.

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 the baseline is 3; all three params (id, name, website) are documented in the schema with sourcing guidance for id. The description only adds the general patch rule, not parameter-specific meaning.

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 (update) and resource (project) plus an authorization scope ('the signed-in user owns or manages'), which separates it from get-project and create-project implicitly. It does not name any sibling explicitly, so it stops short of a 5.

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?

'Only the fields you pass are changed' implies a partial-patch use case and the error sentence implies preconditions, but no explicit guidance on when to choose this over update-* siblings or get-project, and no exclusions are stated.

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