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

Annotations already declare readOnlyHint=true and openWorldHint=true, so safety is covered. The description adds nothing beyond that: no mention of pagination, date-range behavior, rate limits, or what a 'submissions' record contains.

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?

It is short, but this is under-specification rather than conciseness. The single fragment omits the operational detail the agent needs, so brevity here is a liability rather than an asset.

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?

An output schema exists, so return values need not be explained, but with six undocumented parameters and no scope or usage detail, the definition is not complete enough for an agent to invoke this correctly against its many SEC siblings.

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?

Six parameters (to, from, cik, ticker, form, limit) with 0% schema description coverage, and the description explains none of them. It does not clarify that from/to are date bounds, that cik and ticker are alternative company identifiers, or how form filters filings.

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 fragment names a resource (SEC EDGAR company filings) and implies a list operation, so the agent can guess what it returns. However, it is a verbless noun phrase that does not distinguish this from siblings like sec_filing, sec_filing_sections, or sec_company_search, leaving the exact scope of 'submissions' unclear.

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?

No when-to-use, when-not-to-use, or alternative-tool guidance is given. An agent has no signal for choosing this over the many other sec_* siblings that also deal with filings.

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