hostodo_set_rdns

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

With no annotations provided, the description carries the full burden. It honestly discloses that the tool returns a 'coming_soon response' and warns 'Do not send secrets', providing critical behavioral context beyond the schema.

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 sentences, front-loaded with the purpose, and every sentence adds value: purpose, stub nature, and security warning. No redundancy or wasted words.

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 that this is a stub tool with no output schema and 4 optional parameters, the description fully explains its limited functionality and expected behavior. It is complete for the tool's nature.

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 coverage is 100% with complete descriptions. The tool description adds no additional meaning to the parameters beyond 'non-secret metadata', which is already in the schema. Baseline score applies.

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 that the tool is intended to 'Set reverse DNS for an IP' but also explicitly reveals it is a stub that does not perform the action. This makes the purpose clear yet distinct from functional siblings.

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 notes that the tool 'does not perform the requested action yet' and is a 'PMF stub', implying it should not be used for actual operations. However, it does not suggest alternative tools like hostodo_create_dns_record for DNS operations.

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