list_silences

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

With no annotations provided, the description carries the behavioral burden. The [READ] prefix signals a non-destructive operation, and it mentions that all silence states are included. However, it does not disclose response structure, pagination, or potential side effects beyond the read-only nature, leaving some gaps for an agent.

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 extremely concise and front-loaded with the [READ] indicator and resource. The Arg section is clear and to the point, with no unnecessary words or repetition. It earns its place efficiently.

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 simple listing tool with one optional parameter and no output schema, the description is reasonably complete. It clarifies the target selection and the included states. It lacks details about the exact return payload, but that is not critical for this straightforward operation given the context signals.

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 input schema provides minimal description for the 'target' parameter, but the description compensates by explaining that it is a Prometheus target name from config and that omitting it uses the default. This adds meaningful semantic context beyond the schema's type and default.

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 returns Alertmanager silences with their states (active, pending, expired). The verb 'list' is implied by the tool name and the resource is explicit. It does not explicitly distinguish from sibling tools like create_silence or expire_silence, but the read-only nature is evident from the [READ] prefix.

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 implies that the tool is used to list silences, and the 'target' parameter provides contextual guidance for selecting a specific Alertmanager. However, it does not explicitly state when to use this tool versus alternatives or when not to use it. The usage is implied rather than fully specified.

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