tool_catalog

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

No annotations are supplied, so the description carries the full behavioral burden. It does add one genuinely useful fact — no device connection is required — implying a safe, static read, but it never states whether the call is side-effect free, whether results are static or version-dependent, or what the "operating rules" actually are. For an unannotated tool this is thin.

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 short sentence with the most useful constraint in parentheses, so nothing is padded. The phrasing is dense with unexplained terminology ("v2", "Agent operating rules") rather than being front-loaded on what the agent gets back.

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 zero parameters and an output schema, the definition does not need to document arguments or return shape. However, for a discovery/onboarding tool the description should say what the catalog covers and how the returned rules should be applied; "v2 capabilities" leaves that ambiguous.

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, so there is nothing for the description to disambiguate; the baseline of 4 applies. The description correctly presents this as a no-argument call.

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?

"Discover v2 capabilities and the efficient Agent operating rules" gives a verb and a rough object, but "v2 capabilities" is undefined jargon and the description never says it returns a catalog of tools/actions. It is not differentiated from plausible siblings such as learn or agent_profile, which an agent could easily confuse it with.

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 only usage signal is the parenthetical "no device connection needed," which hints the tool can be called before a device is attached. There is no statement of when this should be preferred over learn, agent_profile, or device_connection, and no exclusion guidance.

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