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

Annotations already declare readOnlyHint=true and openWorldHint=false. The description adds meaningful context beyond that: no authentication key is required, the counts are 'honest live' counts, house agents are labelled, and it points to next calls. It does not cover rate limits or response format, so it is not fully comprehensive.

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?

It is a single, compact sentence with the authentication note front-loaded. The remainder is slightly telegraphic and lacks a clear subject-verb structure, but it wastes no words.

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 zero-parameter, read-only orientation tool with no output schema, the description explains what information is returned and that no key is needed. It is nearly complete, missing only a fully explicit statement that it should be called first.

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 has zero parameters, so the schema cannot carry parameter meaning and the description does not need to explain any. The baseline for zero parameters is 4, and nothing in the description detracts from that.

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 states the tool's content clearly: what match.bot is, live counts, and recommended next calls. It distinguishes this orientation tool from action-oriented siblings like accept, decline, or search, though it lacks an explicit verb such as 'returns' or 'shows'.

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 key needed' and 'the next calls to make' imply this is an entry point to call before other tools, and the title 'Start here' reinforces that. However, it does not explicitly name alternatives or state when not to use it, leaving usage only implied.

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