Update a project

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

Annotations already declare readOnlyHint=false, idempotentHint=true and destructiveHint=false, so the safety profile is partly structured. The description goes beyond them with the critical 'brandProfile replaces both lists entirely: pass every domain and name the project should keep', which warns that unspecified entries are dropped, and 'Safe to retry' restates idempotency in operator-friendly terms.

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 tight sentences, front-loaded with the two actions and immediately followed by the replace semantics, which is the highest-value detail. The trailing 'Safe to retry' is slightly redundant with idempotentHint=true but is short enough not to be wasteful.

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 mutation tool with no output schema, the description covers what changes, how the list parameters behave, and retry safety. Remaining gaps are minor: permission requirements and how to confirm success are not stated, but nothing needed to invoke it correctly is missing.

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 only 25%, and only brandProfile carries an inline schema description, so the description must compensate. It does so for the highest-risk parameter by spelling out replacement semantics and the requirement to re-send all retained values; name is covered by 'rename', while organizationId/projectId are self-evident identifiers.

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?

Names specific operations and the affected resource: renaming a project and replacing its monitored website domains and brand names. This is enough to separate it from update_organization, update_competitor, or rename_cluster by resource, though it never names those siblings explicitly.

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 phrase 'or both' makes clear the two operations are independently optional, which is real usage guidance. However there is no when-not guidance, no mention of prerequisites such as ownership/admin rights, and no reference to siblings like preview_operation for validating the change first.

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