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

With no annotations, the description carries the burden and does reasonably well: it discloses the data source (SEC EDGAR), that every row links to its filing, licensing (CC BY 4.0, free), the shape of the reply (one-line answer plus date), and truncation signalling with a `more` link. It does not discuss auth requirements, but none appear needed.

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?

Front-loaded with the question it answers, then tight fragments on source and scope. Slightly fragmented ('Auditor Watch. SEC 8-K Items 4.01 and 4.02 · auditor changes and non-reliance.') with mild redundancy between the opening question and the fragment line, but no wasted sentences.

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 single-optional-param read tool with no annotations or output schema, the description covers scope, sourcing, response shape, and truncation. Only the routing vs. sibling tools is left implicit, which is a minor gap given the specific topic.

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 100% and the single `limit` parameter is fully documented there, so the schema does the heavy lifting. The description restates the default/ceiling and mentions total/returned/truncated response metadata, which adds marginal rather than new parameter meaning.

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 leads with the exact question the tool answers — public companies that changed auditors or issued non-reliance this week — plus the underlying SEC 8-K Items 4.01/4.02. This is a specific verb+resource framing that an agent can distinguish from siblings like get_breaches or get_restructuring.

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?

It implies the usage context ('this week', auditor changes, non-reliance) but never says when to prefer it over adjacent tools such as get_breaches or get_restructuring, nor does it state exclusions. Usage is inferable from the topic but not spelled out.

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