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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety signaling is covered. The description adds no behavioral context at all — no indication of what the release detail contains, whether additional calls are needed, or any rate/access constraints.

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?

It is short, but this is under-specification rather than conciseness: a four-word fragment that does not earn its place by conveying any actionable information. There is no front-loaded statement of what the tool returns or requires.

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 described. However, for a three-parameter, zero-covered detail tool, the description leaves the identity of the resource, the choice among id/url/path, and the purpose versus siblings entirely unresolved.

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?

All three parameters (id, url, path) have 0% schema description coverage, so the description carries the full burden and conveys nothing about them. Worse, the schema exposes three alternate resource identifiers whose relationship and precedence are completely unexplained anywhere.

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 restates the tool name almost verbatim ('Box Office Mojo release detail') without specifying what a 'release' is or what detail is returned. It does not distinguish this tool from siblings like boxofficemojo_title, boxofficemojo_release_group, or boxofficemojo_calendar, so an agent cannot tell which one to pick.

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?

There is no when-to-use guidance, no mention of prerequisites, and no reference to any alternative tool. The agent is left to infer usage entirely from the name against a very large sibling set.

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