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

No annotations are provided, so the description carries the full burden. It signals a read-style listing and a deadline sort, but never states that a paid subscription token is required (only hinted by 'PRO'), nor anything about result limits, pagination, or return shape.

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 front-loaded sentence with no filler; the key constraint (open comment periods) and ordering (deadline first) come first. Its brevity is close to under-specification but avoids waste.

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?

With no annotations, no output schema, and one of two parameters undocumented, the description should do more: it omits the auth/subscription requirement, expected return content, and result limits. As written, an agent knows the topic but not how to call it successfully.

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 coverage is 50%: access_token is documented in the schema but keyword is not. The description mentions 'keyword/agency' yet the schema has no agency parameter, so it introduces a mismatch and adds little clarifying detail about how keyword matching works.

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 names a specific resource (proposed rules with open comment periods), a filter (keyword/agency), and an ordering (deadline first), so the agent can tell what it retrieves. It does not differentiate itself from the siblings reg_search and reg_watch, 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?

The 'comment periods still open' framing implies the use case (finding rules open for public comment), but there is no explicit when-to-use vs reg_search/reg_watch guidance and no stated prerequisites or exclusions. Usage must be inferred from the resource description.

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