register_standard_clusters

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

With no annotations, the description carries the burden of behavioral disclosure. It reveals a key behavior: top-level credentials are used by default for all aliases, and credentials_by_alias can override per alias. However, it does not disclose other behaviors like idempotency, overwriting existing aliases, or side effects, which would be expected for a registration tool.

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 description is three short sentences, front-loaded with the main action and immediately followed by essential behavioral notes. No filler or redundant information. Every sentence earns its place.

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?

Given the tool has 5 parameters and no annotations, the description provides enough context for an agent to select and invoke the tool correctly: it explains the core parameters and the default credential behavior. It omits details on verify_ssl and set_default_alias, but these are minor and the output schema exists, so return values are not needed.

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?

The schema has 0% description coverage, so the description must compensate. It explains the purpose of username, password, and credentials_by_alias, including the relationship between them. It does not mention verify_ssl or set_default_alias, but these are reasonably self-explanatory from their names and defaults.

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 clearly states the tool's specific verb and resource: 'Register all built-in cluster aliases in one call.' This distinguishes it from sibling tools like register_cluster, which presumably registers a single cluster, by emphasizing the bulk 'all built-in' scope.

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 clear context for when to use the tool: when you want to register all built-in aliases at once, with an optional per-alias override. It does not explicitly mention alternatives or when not to use it, but the 'in one call' phrasing implies a bulk setup difference from register_cluster.

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