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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint and destructiveHint=false, so the safety profile is covered. The description adds behavioral value by enumerating the return content (timeline, latest development, AI digest, related events), which matters since there is no output schema. It stops short of noting cost, rate limits, or error behavior for invalid IDs.

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?

Two sentences, zero filler, and the high-value content (what is returned, where the ID comes from) is front-loaded. Every clause 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 read-only single-story lookup with full schema coverage and no output schema, the description adequately covers scope, return content, and ID provenance. Only minor gaps remain, such as how report_limit affects the timeline 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 100%, so both parameters are already documented in the schema, including the same 'final path segment of links.story' sourcing rule. The description reinforces the ID provenance but adds no syntax or format detail beyond the schema, so the 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 ('Get') and a specific resource ('one public story') plus the exact content returned: timeline, latest development, AI digest, related events. This clearly distinguishes it from siblings like aihot_get_hot_topics or aihot_get_daily, which operate on aggregates rather than a single story.

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?

Gives strong precondition guidance: the tool applies to one public story and the public_id must come from aihot_get_hot_topics links.story, with an explicit prohibition on inventing IDs. It does not, however, name alternative tools for other retrieval scenarios or state when not to use this one.

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