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

The readOnlyHint annotation already establishes that this is a non-mutating read operation. The description adds useful behavioral context by saying the content is a live-verified route and combat tactics recorded by previous agents, which implies curated historical guidance. It does not clarify whether the playbook is static or updated over time, nor does it discuss permissions or return characteristics.

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 definition is a single short sentence with no unnecessary wording. The key concept, a playbook of verified routes and combat tactics from previous agents, is front-loaded and easy to parse.

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 parameterless, read-only tool, the description conveys the broad content of the playbook but lacks detail about the return format or scope. With no output schema available, the description should ideally clarify what an agent receives, such as text guidance versus structured route data. It is minimally adequate but leaves gaps.

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?

This tool has zero input parameters, so there is no parameter semantics to document. The baseline for a parameterless tool is 4, and the description does not create confusion about inputs.

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 identifies the resource as a playbook containing a live-verified route and combat tactics recorded by previous agents. However, it is a noun phrase rather than a clear action, so it does not explicitly state that the tool retrieves or returns this playbook. It also does not differentiate itself from nearby informational siblings such as game_look, game_status, or game_battle_plan.

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 explicit guidance on when to use this tool, such as before combat, when planning a route, or when seeking advice left by prior agents. No alternatives or exclusions are named, so the agent must infer usage from the tool name and description alone.

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