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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety profile is covered. The description adds one genuinely useful behavioral note - that shows are returned as a 'first page' (i.e. truncated/paginated) - but says nothing about auth, rate limits, or how to page beyond the first page.

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, front-loaded sentence that packs the return contents with no filler. Efficient, though the em-dash list is dense enough that the core 'fetch by id' action is somewhat 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?

An output schema exists, so return values need not be re-explained, and annotations cover the safety profile. However, with a required param at 0% coverage and no usage routing to sibling tools, the definition leaves real gaps an agent would have to guess at.

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 single required id parameter has 0% schema description coverage, so the description must carry the burden, yet it never mentions or characterizes the id. It only weakly implies the value identifies a channel. The schema coverage gap is not compensated.

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 names the specific resource (a Fanatics Live channel's detail page) and enumerates what it returns: parent shop plus first page of live/upcoming and past/replay shows. This distinguishes it from siblings like fanaticslive_shop or fanaticslive_show by content, though the retrieval verb itself is implicit.

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 explicit when-to-use or when-not-to-use statement, nor any named alternative. Usage is only implied: it is clearly a single-resource detail fetch, which an agent can infer from 'own detail page' and the required id.

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