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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety and open-world nature are covered. The description adds that output is a paginated set of article cards and that a discovered path is required, but does not describe pagination limits, total counts, or rate behavior. Modest added value over the annotations.

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 sentences, front-loaded with verb and resource, followed by the operational precondition. No filler; every clause carries 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 not be explained. The description covers the resource, the pagination aspect, and the discovery prerequisite, leaving only minor gaps around pagination bounds and sibling disambiguation.

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 100%, so both 'page' and 'path' are documented in the schema itself. The description only echoes that the URL should be discovered and that paging is involved, adding little syntax or format detail beyond the schema. Baseline 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?

States a specific verb and resource: 'Fetch one paginated set of article cards from a discovered Rotten Tomatoes editorial section, hub, or hub subpage.' An agent understands it retrieves a list of cards, but the description never explicitly names how it differs from siblings like rottentomatoes_editorial_content, editorial_search, or editorial_detail, so differentiation relies on inference.

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 instruction to 'Use a section or hub URL from Rotten Tomatoes discovery before paging through its articles' gives a clear prerequisite workflow: obtain a discovered URL first, then page. It provides solid context but names no explicit alternatives or when-not-to-use conditions.

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