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

With annotations providing no safety hints (all false), the description carries the burden of behavioral disclosure. It explains the impact on remaining matches (walkovers) and format-specific behavior (americano regenerates future rounds), and emphasizes the preview/confirm mechanism. This is valuable context beyond the schema's parameter descriptions.

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 description is two sentences long and front-loaded with the primary action, followed by behavioral consequences and a usage note. Every sentence earns its place with no redundancy or fluff.

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?

The description covers the essential outcomes (walkovers, americano regeneration) and the preview/confirm workflow, which is central to this tool. It doesn't discuss prerequisites or error scenarios, but the output schema exists and the parameter schema is well-documented, so the description is sufficiently complete for an agent to use the tool correctly.

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?

Schema description coverage is 75%, so most parameters are documented. The description adds context for 'confirm' ('Preview first, confirm to apply') but this is already detailed in the schema. It doesn't clarify 'player_name' beyond indicating a player or pair. Overall, the description adds marginal value over the schema, so the baseline of 3 is appropriate.

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 function: 'Withdraw a player (or their pair) mid-tournament.' This is a specific verb-and-resource description. It doesn't explicitly compare to sibling tools like remove_player or replace_player, but the mention of tournament consequences (walkovers, americano rounds) helps distinguish it from simple removal.

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 provides clear usage context: withdrawing a player mid-tournament, with a preview-first workflow ('Preview first, confirm to apply'). It doesn't explicitly state when not to use it or name alternatives, but the context is clear enough for an agent to decide when to invoke it.

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