get_user_recent_updates

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

Annotations already declare readOnlyHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds no behavioral context beyond restating the resource—it does not define what 'recent' means, how pagination via maxId/minId behaves, or what activity fields are returned.

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 front-loaded sentence with no wasted words. It is arguably too sparse for a six-parameter tool, but it is not verbose or poorly structured.

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?

Annotations cover safety and the schema fully documents parameters, but the description does not clarify behavioral details like the 'recent' window, default ordering, or how ID-based pagination should be used. Adequate for invocation, but with clear gaps for a multi-filter activity retrieval tool.

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 all six parameters are documented in the schema, including defaults, ranges, and enum values. The description adds no parameter-level meaning beyond the schema, making the baseline 3 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?

States a clear verb ('Returns') and resource ('recent updates (activities) for a specific user'), so an agent knows exactly what the tool fetches. It does not distinguish itself from siblings such as get_space_activities, which also returns activity-like data, leaving the scope boundary implicit.

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?

Provides no guidance on when to use this tool versus alternatives like get_space_activities or get_watching_list_items. There are no exclusions, prerequisites, or usage conditions stated.

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