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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered. The description adds that results are public URLs and can be unfiltered (potentially large), but says nothing about pagination or limiting of a full listing.

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 tightly written sentences, no filler, with the resource and return fields front-loaded before the optional-filter note.

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 no explanation, and annotations cover the safety profile; the single optional parameter is fully described. The remaining gap is routing guidance against the sibling search_docs, which would make the definition complete.

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%, so the query parameter is already fully documented in the schema. The description restates the keyword-filter-over-titles/descriptions/paths behavior without adding format, matching, or case-sensitivity detail.

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 a specific verb and resource ("List documentation pages") and names the returned fields (path, title, description, public URL), so the agent knows exactly what it gets. It does not differentiate itself from the sibling search_docs, which also accepts keyword filtering, leaving ambiguity about which to pick.

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?

"Pass query to filter by keyword; omit it to list every page" gives clear parameter-level usage guidance. However, there is no guidance on when to prefer this over search_docs or get_doc_page, and no mention of prerequisites or result-size expectations.

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