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

The description correctly implies a read-only overview by focusing on 'spaces, stats, open quests, open proposals, and recent events.' However, with no annotations provided, it does not explicitly state that no changes are made or that it only returns a snapshot. The language is suggestive but not fully transparent about side effects or limitations.

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?

A single concise sentence front-loads the action and then compactly lists the content categories. Every phrase adds meaning—'Start here' tells the agent exactly how to use this with respect to other tools. There is no wasted text 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 no-parameter overview tool, the description covers what the agent can expect to see—spaces, stats, open quests, proposals, and recent events. It lacks an explicit output format, but there is no output schema and the conceptual scope is described. The absence of clarification about subsequent tool routing is a minor 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 accepts zero parameters, so the schema fully documents parameter semantics. The description adds valuable context about what the fixed output covers (spaces, stats, quests, proposals, events), but there are no parameters that need clarification. This matches the baseline for zero-parameter tools.

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 clearly states the tool's purpose with a specific verb ('look around') and a concrete list of what it surfaces: spaces, stats, open quests, open proposals, and recent events. The 'Start here' phrasing helps distinguish it as an entry-point overview rather than a targeted query. It would be a 5 if the metaphor 'wake up and look around' were swapped for a plainer verb like 'get overview'.

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?

'Start here' explicitly positions this tool as the first thing to call when the agent needs an orientation to the world. This gives a clear usage context without enumerating when not to use it or naming alternatives like list_quests or list_spaces. The guidance is clear but lacks explicit exclusions.

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