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

With readOnlyHint=true already covering the safety profile, the description adds genuine behavioral context: the exact fields returned and the filtering rule that excludes text/datagrid widgets. It stops short of noting pagination or ordering behavior.

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?

A compact, front-loaded sentence listing returned fields followed by the exclusion and the raw endpoint. Dense but every clause carries information; no wasted padding.

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 correctly compensates by enumerating the fields returned (Name, Type, TypeDesc, Size, Hash) and what is filtered out. For a single-parameter read-only list tool this is close to complete, though pagination/ordering details are absent.

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 sole 'report' parameter is fully documented in the schema (hash or URL title, pointing to wufoo_list_reports). The description only restates the endpoint URL template and adds nothing beyond the schema, so the baseline 3 applies.

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 names the specific resource (chart, graph and big-number widgets on a report) and enumerates the returned fields, so an agent knows exactly what this tool yields. It is clearly distinguishable from siblings like wufoo_get_report or wufoo_list_reports.

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 an implicit exclusion ('Text and datagrid widgets are not returned') that helps scope selection, but it never states when to reach for this tool versus wufoo_get_report or other report siblings, nor any prerequisites.

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