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

Annotations already declare readOnlyHint=false, destructiveHint=true, and idempotentHint=false, so the safety profile is covered. The description's only addition is the authorization prerequisite ('you can edit'), which is useful context; it says nothing about the fact that the existing title is overwritten, what happens when the caller lacks permission, or what a success response contains.

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?

A single short sentence with zero filler, and the operation is front-loaded before the access qualifier. It is efficient but borders on terse, leaving the permission clause slightly ambiguous in wording.

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 simple two-parameter mutation with full schema coverage and annotations describing the safety profile, the description is minimally sufficient. It is still thin on the overwrite semantics of the existing title and error conditions such as missing dashboard or insufficient permission.

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% ('New dashboard title', 'Dashboard ID'), so the schema fully carries parameter meaning. The description adds no constraints such as title length, uniqueness, or formatting beyond what the schema already states, which is the expected baseline for a fully documented two-parameter tool.

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 pairs a specific verb ('Rename') with a specific resource ('a dashboard'), so the operation is unambiguous. It does not differentiate from adjacent report tools such as report_create_dashboard, report_duplicate_dashboard, or report_update_block, which is why it falls 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?

The phrase 'you can edit' implies a permission precondition and therefore implied usage, but there is no explicit when/when-not guidance and no named alternative (e.g. report_update_block for other dashboard properties). The agent must infer the edit-permission requirement rather than being told how to check it.

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