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

Annotations already carry readOnly, idempotent, non-destructive and closed-world hints, so the safety profile is covered. The description adds real value beyond them: the ranking is capped at 10, the window is since 2016, and the universe of valid CFR parts is enumerated. It does not describe whether citation counts are returned.

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 the core purpose first, followed by the part enumeration. The long list of part codes reads as a run-on, but every element carries meaning and nothing is filler.

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 output schema, the description still conveys what comes back (a ranked list of the 10 most-cited standards), the scope filter, and the time window. Annotations cover safety traits. Only the return shape (does it include citation counts?) is left unstated, which is a minor gap.

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 only 50%; cfr_part has a description while limit has none. The description compensates by enumerating the valid part codes (1910, 1926, 1904, 1915, 1917, 1918, 1928), which the schema lacks entirely, and 'The 10 most-cited' explains the limit default/max. The limit parameter itself is still never discussed.

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 resource (29 CFR safety standards), a ranking criterion (most-cited), a fixed scope (top 10) and a time window (since 2016). It is clearly distinguishable from get_standard and search_standards by its ranked, aggregate nature, though it never names those 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?

Usage is implied rather than stated: 'for all standards or one CFR part' tells the agent it can run unfiltered or scoped, but there is no explicit when-to-use guidance, no exclusions, and no pointer to search_standards or get_standard as alternatives.

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