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

With no annotations provided, the description carries the full burden of behavioral disclosure. It only mentions 'Published blog posts' implying read-only operation, but does not disclose authentication requirements, pagination behavior, or any side effects. It does not even explicitly state it is a read operation, though that is implied. The description is minimal and lacks behavioral context.

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 a single, clear sentence that front-loads the core purpose and lists the output fields. It is concise with zero fluff, making it easy for an agent to quickly grasp the tool's function.

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?

Given two parameters with no descriptions, no output schema, and no annotations, the description is severely incomplete. An agent lacks essential information about how to use the parameters and what the response structure will be. While the tool is simple, the missing parameter semantics and lack of any return format details make it inadequate for correct invocation.

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 schema description coverage is 0%, so the description must compensate by explaining the parameters. However, the description does not mention 'limit' or 'locale' at all. It does not explain what limit controls (pagination, count) or what locale affects (language of content). The agent has no guidance on how to set these parameters beyond their names and defaults, which is insufficient.

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 returns published blog posts from a specific blog (赛博畅想) and lists the included fields (title, excerpt, author, tags, date). This is a specific verb+resource and distinguishes it from the many financial data siblings.

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?

The description implies usage for retrieving blog posts, and the tool name 'get_blog_posts' reinforces this. However, there is no explicit guidance on when to use this tool vs alternatives, nor any exclusions. Since it's the only blog-related tool among financial siblings, the usage is implicitly clear but not explicitly stated.

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