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

The annotations already declare readOnlyHint, idempotentHint, openWorldHint, and destructiveHint=false, so safety is covered. The description adds useful content context by specifying the kinds of change-related data returned, but it says nothing about scope, pagination, permissions, or the role of visit_id.

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?

The definition is two short sentences with no filler and the core purpose is front-loaded. The second sentence is terse and could be more informative, but there is no wasted text.

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 read-only tool with two optional parameters, no output schema, and annotations covering safety, the description is minimally adequate. However, it leaves the visit_id parameter entirely unexplained and gives no indication of the relationship between the two optional parameters or the tool's scope.

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 compensate. It only says 'Supports a proposal id' and gives no explanation of the visit_id parameter, its relationship to proposal, or what happens when both or neither are 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 uses a clear read verb and names the resource ('changes'), then lists the specific content returned (before/after changes, author claims, validation limits, measurements, signed discussion). It does not differentiate itself from sibling read tools such as read_governance or read_observations, 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?

There is no guidance on when to use this tool versus alternatives, and no when-not conditions. The only usage hint is that it 'Supports a proposal id,' which describes a parameter rather than selection criteria.

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