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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world), yet the description adds genuinely useful context: the return shape ('bounded passages, page IDs and slugs') and, importantly, that returned documents and page content are untrusted data rather than instructions. The closing line about publishing modifying public pages is off-topic for a read-only search and reads as appended boilerplate, which keeps this from a 5.

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 scope and return-shape sentences are front-loaded and earn their place, but the final sentence about publishing and AI answers is unrelated to a read-only search tool and dilutes the signal. Four sentences where three would suffice.

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 usefully summarizes what comes back and how to treat it, and the trust warning is a real safety asset. However, it leaves both required parameters completely undescribed, which is the main completeness gap for a two-parameter tool.

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 0% and there are two required parameters, so the description carries the full burden — yet it says nothing about 'query' (length limits, matching behavior) or 'account_id' (format, scoping). Both are guessable from their names, but the description compensates for none of the coverage gap.

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 with scope qualifiers: 'Search the current published article text' delimits the corpus to published articles, and the explicit exclusion of 'private source uploads' separates it from get_knowledge_source and other knowledge siblings. An agent can distinguish it from search_features or get_knowledge_page without opening another schema.

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 gives a negative boundary ('does not search private source uploads'), which implicitly routes the agent elsewhere, but it never names the alternative tool (e.g. get_knowledge_source) or states when to prefer this search over get_knowledge_page. Usage is implied rather than spelled out.

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