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

With no annotations, the description carries the full disclosure burden and it does volunteer two useful facts: pagination size (50 per page) and that results are scoped by caller visibility intersecting grant coverage. However, it says nothing about auth requirements, ordering, whether the list is stable across pages, or what a returned watch looks like, and the grant-intersection phrasing is cryptic rather than explanatory.

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?

Two tight sentences with the core operation and scoping front-loaded before the paging detail. Nothing is padded, though the second sentence's phrasing is dense enough that it earns its place less cleanly than the first.

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?

No output schema, no annotations, and 0% parameter documentation means the description is the only source of semantics — and it omits the status filter's meaning and any auth/pagination contract. For a filtered list tool with two undocumented params, this leaves a real gap.

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 schema documents neither parameter. '50 per page' indirectly implies offset-based paging, which partially covers the offset param, but the status enum (active/needs_attention/paused/closed/expired) is never explained, so an agent gets no guidance on the one filter it can pass.

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 specific verb and resource ('List saved World State watches') with a scope qualifier ('visible to this caller'), which is enough to separate it from the singular sibling inspect_watch. It stops short of explicitly naming that sibling or the grant-oriented tools it overlaps with, so a 4 rather than 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 when-to-use or when-not-to-use guidance and no named alternative. The closest thing to context is the visibility scope ('visible to this caller'), which hints at permissions but does not tell the agent when this tool beats inspect_watch, list_sets, or the grant_* family.

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