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

Annotations already declare destructiveHint=true, idempotentHint=true, and readOnlyHint=false, so the safety profile is covered. The description adds ownership scope ('signed-in person's watchlists') but does not clarify whether removal applies to all watchlists, what happens if the stock is not watched, or any auth/permission requirements.

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?

A single well-formed sentence with zero waste, front-loading the action and target.

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?

Given a complete output schema, rich annotations, and a fully documented single parameter, the description is nearly sufficient. It states the target scope but leaves minor ambiguity about whether removal applies across all watchlists or a specific one.

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% and the single `stock` parameter is fully described in the schema with symbol/company-name examples. The description adds only the 'US stock' constraint, which is already reflected in the schema description.

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 (Remove) and resource (US stock from the signed-in person's StockMap watchlists), making the action clear. It implicitly contrasts with the sibling `watch` tool but does not explicitly name or distinguish from it.

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 gives no explicit guidance on when to use this tool versus alternatives such as `watch` or `my_watchlists`. Usage is only implied by the verb 'Remove'.

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