Get current Roblox place and universe metadata

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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered. The description still adds genuinely new behavior: every read is pcall-guarded and restricted fields come back as null rather than failing the call, plus the active-client prerequisite and a medium cost signal.

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 field list and pcall/null behavior are front-loaded and earn their place, but the trailing meta-template is padded: "Safety: read-only" and "idempotency=read-only" merely restate the annotations, and "Phase: observe; cost=medium; Produces: ..." is boilerplate that dilutes an otherwise tight description.

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?

With no output schema, the description carries the return-value burden and does so by naming the fields an agent will receive, along with the null-on-restricted-field fallback and the failure pointer to tool-schema. For a zero-parameter read tool this is close to complete, with only the absence of any sibling routing as a 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?

The tool takes zero parameters and the schema is an empty object at 100% coverage, so there is nothing for the description to disambiguate; baseline 4 applies. The description correctly describes the empty signature rather than inventing parameters.

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 first sentence gives a specific verb (Read) and resource (identifying metadata for the game the active client is in) and enumerates exactly what is returned: PlaceId, GameId, JobId, PlaceVersion, names, player count. It does not, however, name or contrast any sibling such as get-place-details or get-game-state, so an agent must infer the boundary itself.

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?

"Use this to confirm which game/server you are attached to before running place-specific code" states a concrete usage context, and the Requires: active-client line adds a precondition. There is no explicit when-not or named alternative, which keeps it below a 5.

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