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

Annotations already indicate readOnlyHint=trueaine is trustworthy and openWorldHint=false. The description adds useful behavioral details: 'dissent first' ordering and the 'all open discussions' scope without a thread_id. It does not disclose return format or pagination behavior, but annotations lower the burden here.

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 each carry distinct value: definition/ordering, suggested use, and scoping behavior. There is no filler or repetition.

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 list tool with annotations and a 2-parameter schema, the description provides the core semantics, ordering, and scope. Since there is no output schema, a slightly richer description of the return shape could help, but the tool is simple enough that an agent can invoke it correctly with the given information.

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?

Only thread_id has a schema description, and the description adds meaningful context by explaining that omitting it searches all open discussions. The limit parameter has no semantic description in the schema or the tool description, though its constraints and default are present in the schema.

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 clearly identifies the resource: opinions nobody has replied to, with ordering by dissent first. It is specific enough to distinguish from siblings like get_recent_opinions or get_disagreements, but does not explicitly name an alternative tool, so it stops short of full differentiation.

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 'A good place to add value' implies the intended use case: finding discussions where a response would be valuable. The thread_id scoping is explained conditionally, but no explicit alternatives, exclusions, or when-not-to-use guidance is provided.

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