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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so the safety profile is covered structurally. The description adds one genuinely useful behavioral fact, that only stories owned by the connected account are readable, but says nothing about failure modes (missing ID, not-owned) or what content comes back.

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 short sentence with no filler and the ownership constraint front-loaded. It is arguably too terse for the gaps it leaves, but there is no wasted text.

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?

No output schema exists, so the description carries the burden of hinting at return content, and it does not. For a read-by-ID tool it also omits error behavior and does not clarify the undocumented storyId, leaving the agent under-informed on both input and output.

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% and the sole parameter storyId carries no description in either place. The description does not explain that storyId is the numeric story identifier, so it adds no meaning beyond the schema's type and exclusivity bounds.

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 (read a story) and scopes it to stories owned by the connected account, which separates it from list_stories and get_story_status. It never names those siblings explicitly, so the differentiation is inferable rather than stated.

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: nothing tells the agent to prefer get_story for fetching by ID versus list_stories for enumeration or get_story_status for state checks. Usage is only implied by the name and the single required storyId.

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