horizon_torn_getMyForumFriendsUpdates

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

The description implies a read operation ('get updates') without disclosing behavioral traits such as what constitutes a 'friend,' the nature of 'activity,' pagination, rate limits, or side effects. Since no annotations are provided, the description carries the full burden but fails to add meaningful behavioral context.

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 concise sentence that is easy to parse. However, it could be improved by front-loading more specific context without becoming verbose.

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?

Without an output schema, the description should provide some indication of the return data format or structure, but it does not. The sibling list includes many forum-related tools, and the description lacks sufficient detail to differentiate what 'updates on friends' activity' returns compared to other 'getMy' forum tools.

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?

The input schema has 100% coverage with detailed parameter descriptions (key, comment, timestamp). The tool description adds no additional meaning beyond these, so the baseline score of 3 is appropriate.

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 'Get updates on your friends' activity' clearly identifies the tool's function as retrieving updates related to friends' activities. It uses a specific verb and resource, but it lacks differentiation from sibling tools like getMyForumFeed or getMyForumPosts, which may overlap in scope.

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 guidance is provided on when to use this tool versus alternatives. There are no prerequisites, restrictions, or comparison to similar tools such as getMyForumFeed or getMyForumSubscribedThreads, leaving the agent to infer usage context.

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