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

Annotations already declare readOnlyHint=true, openWorldHint=false, and destructiveHint=false, so the safety profile is covered. The description adds that it checks both pages and illustrations readiness, which is useful, but doesn't disclose return format (no output schema) or whether status is a boolean/enum/partial-progress state.

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?

Single, front-loaded sentence with no wasted words. Every element (verb, resource, scope of readiness) earns its place.

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?

For a simple 1-param read tool with annotations covering safety, the description is adequate but lacks any note on what 'ready' returns, whether it's a boolean or partial state, and how the agent should proceed while not ready.

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 0%, so the description carries some burden, but it doesn't mention storyId or clarify whether it accepts a story identifier. With only one well-named required param, the impact is limited. Baseline 3 is defensible but lower than ideal given no description coverage.

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 states a specific verb ('Check') and resource (a story's pages and illustrations readiness), distinguishing it from get_story (which likely returns story content) and other story tools. It doesn't explicitly name a sibling, so it falls short of a 5.

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 when-to-use guidance is given. There's no indication of when to poll this status versus calling get_story, nor any mention of rate limits or polling behavior, leaving the agent to infer usage from the name alone.

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