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

Annotations already declare readOnlyHint=true and openWorldHint=true, and the description adds real context by naming the upstream source (SEC EDGAR) and clarifying that body text is parsed rather than raw. It does not say which items are covered (1, 1A, 7, 8, etc.), how long the text is, or whether it is truncated, so behavioral disclosure remains partial.

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 with no filler, and the resource and scope are front-loaded. The parenthetical source note is genuinely informative rather than padding, though the 10-K/10-Q wording repeats the title.

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 must convey the return shape, and 'item-level sections with parsed body text' is only a partial answer — item identifiers, ordering, and text volume are unstated. For a simple single-parameter read tool this is minimally adequate but leaves an agent guessing about payload size and structure.

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 description coverage is 100% and the single parameter rssd_id is fully documented in the schema, so the schema carries the weight. The description's 'for one bank' reinforces that the call is scoped to a single entity but adds no format or validity detail beyond the schema.

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 the specific resource (item-level 10-K/10-Q sections with parsed body text) and its scope (a single bank), which is enough to distinguish it from a general filing search. The retrieval verb is only implicit, but the noun phrase is concrete enough for an agent to know what it returns.

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?

There is no when-to-use guidance and no differentiation from the closely related sibling filing_narratives, which plausibly returns the same underlying filings in a different shape. The phrase 'for one bank' implies a per-entity lookup, but nothing tells the agent when this is preferable to other filing-centric tools.

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