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

Annotations already cover the safety profile (readOnly, idempotent, openWorld, non-destructive), so the description's added value is the credit model – '1 point per returned record' – and the shape of the payload (rating, review text, reviewer name). That is genuine context beyond what annotations provide, though it omits pagination or rate-limit behavior.

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 tight sentence with the resource front-loaded, the accepted identifier forms parenthesized, and the cost note appended. Nothing is wasted or buried.

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?

With no output schema, the description helpfully names the returned fields, and the cost-per-record note answers a key agent question. For a simple two-parameter read tool this is nearly sufficient; only pagination/limits detail is missing, and max_items is covered by the schema.

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%, documenting both 'tool' (slug or URL, with an example) and 'max_items' (range 1-250, default 25). The description restates 'slug or URL' without adding format or syntax detail, so it neither compensates nor detracts; baseline 3 applies.

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+resource ('User reviews of one Futurepedia AI tool') and enumerates the returned fields (rating, review text, reviewer name), so an agent can tell it apart from run_futurepedia_tools and run_futurepedia_tools_search. It stops short of explicitly naming how it differs from sibling review-like tools for other directories, but the Futurepedia scoping is clear.

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?

No statement of when to use this versus alternatives such as run_futurepedia_tools_search or run_theresanaiforthat_tools_reviews. The singular 'one tool' implies a per-entity lookup, but the agent must infer when reviews are the right call versus the base tool record.

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