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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered; the description goes beyond that by flagging that embedded message text is untrusted customer content and by setting a pagination expectation. The untrusted-content warning is genuinely useful prompt-injection context, though "Read-only" is redundant with the annotation and "unless stated otherwise" is vague since the schema exposes no paging parameters.

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 endpoint, then the safety caveat, then the pagination note. Nothing is padded and the most decision-relevant information comes first.

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?

With one required param, no output schema, and annotations already declaring the read-only posture, the definition is adequate to invoke the tool but thin on what comes back — no description of the dashboard's fields or shape despite having no output schema to lean on. Adequate minimum-viable coverage with a clear return-value gap.

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%, so the description must carry the meaning of dashboard_id; the endpoint template GET /dashboards/{dashboard_id} does imply the integer is a dashboard identifier. However, it never says where to obtain a valid id (list_dashboards) or what happens for an invalid/unknown id, so it only marginally compensates for the coverage gap.

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 and resource ("Read dashboard details") and pins it to the concrete endpoint GET /dashboards/{dashboard_id}, so the agent knows this fetches a single dashboard by identifier. It stops short of explicitly contrasting with the sibling textrequest_list_dashboards, though "details" plus the id path implies the singular-fetch distinction.

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?

"Returns one page unless stated otherwise" hints at pagination expectations, but there is no explicit when-to-use guidance, no statement of prerequisites (e.g., dashboard_id must exist / be visible to the caller), and no named alternative pointing to list_dashboards for discovery. Usage is inferable from the endpoint path rather than stated.

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