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

The description discloses that it returns download URLs (not files) and requires a session_key for access, which implies a credential-based security model. However, with no annotations provided, the description does not explicitly state whether the operation is read-only, what happens if parameters are invalid, or potential timeout/rate limits. It is minimally transparent but not misleading.

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?

The description is extremely concise with two front-loaded sentences: the first states purpose and deliverables, the second states requirements. No extraneous information, every sentence earns its place. This is optimal for quick agent comprehension.

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?

Given the tool's simplicity (2 required params, no output schema), the description covers the core functionality well. It mentions return type (URLs) but does not specify the response structure or mention potential error scenarios (e.g., invalid report_id). The absence of an output schema is not fully compensated, but the description provides sufficient context for most use cases.

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?

The input schema has 100% coverage, describing both report_id and session_key. The description adds minor context (e.g., report_id format hint and session_key origin from access email), but these are essentially redundant with the schema descriptions. Since the schema already provides clear definitions, the description adds limited semantic value beyond what is structured.

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 clearly states the tool returns download URLs for specific deliverables (filing packet, coaching report, package zip, scorecard PDF). The verb 'Return' and the explicit enumeration of deliverables make the purpose unambiguous, distinguishing it from sibling tools that focus on different stages (e.g., precheck_score, precheck_search_corpus).

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?

The description notes required parameters (report_id and session_key) but does not provide explicit guidance on when to use this tool versus alternatives. It implies usage when deliverables are needed after review completion, but lacks when-not-to-use conditions or direct references to sibling tools for context. This is adequate but leaves room for ambiguity.

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