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

Discloses that it is a write operation and mentions rate limits and max text length, but lacks details on authentication, failure modes, or side effects. Annotations are all false, so description carries the full burden and does an adequate job.

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?

The description is extremely concise: two sentences plus a bullet list, front-loaded with the primary action. Every sentence adds value with no redundancy.

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?

Covers purpose, inputs, output format, and constraints. Lacks details on error behavior or authentication, but for a simple create tool with no output schema, it is largely complete.

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 input schema has 100% description coverage, and the description merely repeats the same parameter information (article_id, text max 2000 chars). It adds no new semantic meaning beyond the schema.

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 clearly states the tool posts a comment on an article, which is a specific verb and resource. It is distinct from sibling tools like 'neptime_create_video_comment' and 'neptime_delete_comment'.

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?

Includes explicit rate limits (50/day, 10s between posts), providing important usage constraints. However, it does not specify when to avoid using the tool or suggest alternatives.

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