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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety and scope are covered by structured data. The description adds real value by specifying what the snapshot contains, but says nothing about whether the town depends on the currently switched course/exam, how the miss count relates to get_misses, or whether values are live or cached.

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 dense sentence that front-loads the core concept (current exam and town) and then enumerates contents. It is efficient with no filler, though the packed list of domain fields is slightly hard to parse on first read.

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 and no parameters, the description carries the burden of describing the return value and does so field by field. Minor gaps remain about scope (which course's exam determines the town) and whether the miss count is global or per domain.

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, so there is nothing for the description to disambiguate; baseline 4 applies. The description correctly implies the target is resolved server-side from the player's current exam context rather than passed in.

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 resource (the player's current exam and town) and enumerates the payload: one building per exam domain with domainId, level, Renown, question tier, available bands, plus pending misses. This clearly separates it from action siblings like answer_question or deal_questions, though it does not explicitly distinguish itself from read siblings such as get_misses and get_standing, which overlap on the 'misses awaiting review' element.

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 indication of when to call this versus get_misses or get_standing, both of which surface overlapping state. There is no mention of prerequisites (e.g., an active exam/course context) or exclusions, leaving the agent to infer usage from the field list alone.

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