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

Annotations establish that this is a write operation that is idempotent and non-destructive. The description adds a genuine behavioral note beyond the annotations: the submitted content is treated as a third-party claim and cannot affect platform rules. However, it omits how the declaration is validated, whether it can be replaced or appended, and what errors look like.

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 no filler, and the semantic constraint on the submitted content is front-loaded after the core action. Nothing is padded, though the brevity is partly under-specification rather than discipline.

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 write tool with a nested object parameter, 0% schema coverage, and no output schema, the description is too thin. It does not explain the declaration's expected structure, the response on success, or how idempotency is honored, leaving key call-shaping details to guesswork.

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 0% across three parameters, so the description carries the full burden. It gives a hint that the 'declaration' payload is semantically inert (a third-party claim) but says nothing about the shape of that nested object, the meaning of project_id, or when idempotency_key should be supplied.

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 verb and resource ('Supply the project description'), but the term 'declaration' is never defined and the wording is close to a restatement of the title 'Describe the project'. An agent cannot infer what a declaration actually contains or how it differs from other project-mutating siblings like create_project or set_env.

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?

There is no statement of when to call this tool, what prerequisites exist, or how it relates to alternatives such as answer_questions or create_project. The only implied usage is that a project description is needed, which the agent must guess from the title.

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