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

Annotations cover safety (readOnlyHint=true, openWorldHint=false), so the bar is lower, and the description still adds real behavior: results are deduplicated to the best plan per provider unless one_per_provider is false, and default ranking is by value index. It does not describe result size limits or pagination, but for a read-only search this is solid disclosure.

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 sentences, no filler, with the core purpose and the return-shape caveat front-loaded. Nothing is redundant enough to cut, though it is slightly dense with parenthetical defaults.

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 9-parameter read-only search with no output schema, the description covers the important unknown: how results are collapsed per provider. Minor gaps remain around result ordering ties and whether the limit interacts with deduplication.

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 all nine parameters are already documented in the schema; baseline 3 applies. The description restates the default sort and the semantics of one_per_provider, which adds only marginal value over the enum/boolean descriptions already present.

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 (Find) and resource (no-commitment monthly VPS plans) plus the qualifying constraint (meet minimum specs) and default ordering. That is enough for an agent to distinguish it from compare_providers, get_provider and domain_prices, though no sibling is named explicitly.

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?

Usage is implied by the search framing and the mention of sort defaults, but there is no explicit statement of when to use this instead of compare_providers or get_provider, and no prerequisite or exclusion guidance.

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