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

Annotations already declare readOnlyHint, idempotentHint and non-destructive behavior, so the safety profile is covered. The description adds one useful piece of context — that results are scoped to the linked Market Brew account — but says nothing about pagination, ordering, or result volume.

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?

Two short sentences, front-loaded with the usage trigger followed by the scoping note. No wasted text, though the first sentence is close to pure name restatement.

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 list tool with full annotation coverage, this is adequate but thin: it never indicates what a returned widget looks like or whether the list is bounded, leaving the agent without expectations about the response.

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 takes zero parameters, so there is nothing for the description to disambiguate; baseline 4 applies. The description correctly implies no filtering inputs are needed.

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 a verb (list) and resource (Ask Widgets), so the basic action is clear. However, it largely restates the tool name/title and gives no differentiation from sibling list tools such as list_content_boosters or list_ask_conversations, nor does it define what an 'Ask Widget' is.

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?

'Use this when the user asks to list Ask Widgets' is essentially a restatement of the tool name as a trigger phrase rather than genuine guidance. There is no mention of alternatives, prerequisites, or when not to use it (e.g., when a count or a single widget lookup is wanted).

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