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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint=false and destructiveHint=false, so the safety profile is fully covered. The description's remaining content mostly previews return values, which the output schema already documents, so genuinely new behavioral context is thin (no auth, rate-limit, or matching-quality notes).

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 compact, front-loaded sentences with no padding. The trailing '[no key]' artifact is unexplained and slightly muddies an otherwise clean statement.

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 simple two-parameter, non-nested lookup with an output schema, the description conveys purpose and result content adequately. It falls short only on parameter semantics (limit) and on any hint of match quality or fallback when nothing matches.

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%, so the description must carry parameter meaning, and it only implies that the input is 'an objection' text. The 'limit' parameter is never mentioned, and there is no guidance on the 500-character cap or what the integer bound controls.

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+resource: matching an objection to common arguments and published articles, then returning the claim, answer, points, and URLs. This distinguishes it reasonably well from siblings like search_articles or related_articles, though it never names an alternative to sharpen the distinction.

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 phrase 'Match an objection' implies the usage context (you have a claim/objection and want supporting material), but there is no explicit when-to-use, when-not-to-use, or routing to sibling tools such as search_articles or get_common_argument. Usage is left to inference.

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