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

With no annotations provided, the description carries the full burden. 'See' implies a read-only operation and it discloses the result categories (sign-ups, running, recent results, entrants, own entry), which is useful. However it says nothing about auth requirements, result limits, whether 'recent results' are truncated, or ordering, so behavioral coverage is only partial.

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?

One tightly packed sentence that front-loads the resource and then the scope. No filler, no repetition of the tool name.

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?

There is no output schema, so the description correctly compensates by naming the categories of information returned, which is what an agent needs to decide relevance. It falls short only on auth/pagination behavior for what is presumably a larger listing.

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?

There is a single optional 'token' parameter and schema description coverage is 100%, so the schema already fully documents it. The description adds no syntax or fallback detail about the token, so the baseline 3 for schema-driven parameters applies.

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 verb and resource ('See scheduled tournaments') and enumerates the scope of what is covered: sign-ups, running events, recent results, entrant lists, and the caller's own entry status. This is clearly distinguishable from mutating siblings such as enter_tournament and withdraw_tournament.

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?

The description describes what is returned but never states when to reach for this tool rather than siblings like examine_history, activity, or list_games, nor does it set any preconditions. Usage is left entirely to inference from the content list.

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