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

With no annotations, the description must carry behavioral disclosure, but it only notes that omitting org changes the output to a list of organizations. It does not describe permissions, rate limits, return format, pagination, or whether providing org returns filings. Behavioral transparency is low.

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?

Two short sentences, front-loaded with the resource and examples, then the usage rule. No wasted words.

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 tool with one optional parameter, no annotations, and no output schema, the description is under-specified. It does not explain the return format, whether results are paginated, or what filing details are included, leaving an agent with gaps 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?

Schema coverage is 100%, so baseline is 3. The description adds meaningful semantics beyond the schema: omitting org triggers an organization list, while providing org presumably retrieves filings for that org. This clarifies the optional parameter's effect, earning a 4.

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 identifies the resource (SRO rule filings) and gives examples of organizations, but does not state an explicit action verb and does not differentiate from sibling filing tools like search_filings. An agent can infer it retrieves filings, but the purpose is not fully explicit.

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 provides one usage rule: omit org to list organizations. However, it does not say when to use this tool versus alternatives such as search_filings or list_filing_files, nor does it describe prerequisites. The guidance is minimal but present.

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