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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so safety and side-effect profile are covered by structured data. The description adds only that the catalog is 'public', implying no auth or user scoping; it does not mention catalog size, caching, or whether links are static.

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?

A single front-loaded sentence naming the action and both return subjects, with no filler or restated title. Nothing can be trimmed without losing information.

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 no-arg, read-only, idempotent catalog fetch with annotations covering behavior, the description tells the agent what comes back (catalog plus product links). With no output schema, it could go slightly further on response shape (e.g., list vs. object, whether links are embedded), which is the only gap.

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 tool takes zero parameters and the schema is fully closed (additionalProperties: false), so there is nothing for the description to disambiguate. Baseline 4 applies since no parameter interpretation is required.

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 (return) and resource (public NoInfra hosted-agent catalog and product links), so the agent knows exactly what this call yields. It does not explicitly contrast with the closest sibling, noinfra.services.list, which could plausibly return overlapping content.

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 only implied: the word 'public' suggests no-auth discovery, but there is no statement of when to prefer this over noinfra.recommend_agent or noinfra.services.list. For a zero-parameter read tool the intent is inferable, but no explicit trigger or exclusion is given.

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