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

With no annotations, the description carries the full burden. It discloses ordering behavior and the exact fields returned, which is useful. However, it does not explicitly state that this is a read-only operation, how pagination works beyond the default in the schema, or whether content is truncated. It gives some behavioral context but not a full picture.

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 description is a single, efficient sentence that front-loads the operation ('List published discussions'), clarifies the ordering, and enumerates returned fields. Every word earns its place with 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 simple list tool with three optional, fully documented parameters and no output schema, the description provides the necessary context: scope, ordering, and return fields. It lacks an explicit note about being read-only, but 'List' plus the schema and return field list make the operation clear. Minor gaps remain around pagination behavior and result count, but the schema covers defaults.

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%, so the schema already documents each parameter. The description adds nothing beyond the schema for 'limit', 'offset', or 'category' — the baseline of 3 applies because the schema does the heavy lifting and the description doesn't need to compensate.

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 specific verb ('List') and resource ('published discussions (forum threads)'), and adds meaningful distinctions: ordering ('pinned first then newest') and the return fields. This clearly separates it from get_discussion, create_discussion, and list_discussion_replies.

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?

No explicit guidance is given about when to use this tool versus alternatives. There is no mention of when not to use it, no reference to a more filtered or detailed sibling, and no context about draft vs. published states beyond the word 'published'. The description implies usage but does not actively route an agent.

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