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

Annotations already flag destructiveHint=true and openWorldHint=true; the description adds the substantive reason ('repricing can affect many listings') plus the two-step human confirmation gate, which is exactly the kind of behavioral context annotations cannot convey. It does not describe what happens to existing settings on partial updates, which keeps it out of 5 territory.

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?

Three short sentences, front-loaded with what it does, followed by the preconditions and the auth note. Minimal waste; only the trailing auth sentence is somewhat terse/awkward, but it carries real information.

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?

An output schema exists so return values need no explanation, and the destructive-repricing consequence plus mandatory confirmations are covered. The main remaining gap is that the contents of the request body and the semantics of a partial vs full settings update are left entirely to external WAPI knowledge.

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 coverage is 100%, so the baseline is 3; the description earns an extra point by explaining the rationale for the two boolean flags and by clarifying that the channel/ChannelOAuthId can be resolved internally rather than being user-supplied. The opaque 'body' parameter (PriceWarrior UpdateSettingsRequest) remains unexplained in both places.

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 ('Updates Price Warrior settings') and scopes it to 'one visible store', which cleanly separates it from the read-side sibling hgr_get_price_warrior and from the different-resource hgr_update_pricing_rule. It stops short of naming a sibling explicitly, so it is clear but not maximally differentiated.

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 confirmation preconditions (confirmed=true, impactConfirmed=true) imply this is a deliberate, high-impact action rather than a casual call, and 'one visible store' hints that a channel must be selected first. However, it never says when to prefer this over hgr_update_pricing_rule or hgr_get_price_warrior, and no explicit exclusions are given.

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