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

readOnlyHint=true already tells the agent this is a safe read, lowering the bar. The description adds one behavioral fact, that an empty result is reported as 'none held' rather than an error, which is useful. It does not disclose pagination behavior, result ordering, or result shape beyond what the annotations cover.

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?

Very tight: the resource question is front-loaded and the filter list follows immediately. The closing sentence about 'none held' is a little cryptic but short. No wasted text.

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 five-parameter list tool with no output schema and only a readOnly annotation, the description is adequate but thin. It omits pagination semantics and result shape, and gives no comparative context against get_pathway, though the fully specified schema covers the mechanical details.

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 all five parameters carry their own descriptions, so the schema does the heavy lifting. The description names three of the filters but adds no syntax, format, or combination semantics beyond the schema, warranting the baseline.

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 conveys a specific resource and action: retrieving which pathways are held, with the three filter keys (title words, agreement id, checklist id) named explicitly. An agent can identify it as a multi-result lookup rather than the single-item get_pathway. It stops short of directly distinguishing itself from get_pathway or find_checklists, so it is clear but not fully sibling-differentiating.

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 filter options are listed, which implies usage, but there is no explicit when-to-use or when-not-to-use guidance and no alternative tool is named. Given the crowded sibling set (get_pathway, find_checklists, find_agreements), the description leaves the routing decision entirely to inference.

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