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

Annotations already declare readOnly, idempotent, non-destructive and closed-world, so the safety profile is covered. The description adds that results concern published/live sites and their addresses, but says nothing about scope defaults (no required params) or whether unpublished or in-progress sites appear.

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?

One sentence, zero padding, lead with the trigger. It is arguably too terse rather than bloated, which is a completeness issue rather than a structure problem.

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?

There is no output schema, and the description only loosely sketches the return (live sites with addresses). It omits the default scope when project_id is absent and gives no sense of result shape, which is a real gap for a tool with no output schema.

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 description coverage is 100%, so language and project_id are already documented in the schema. The description adds no meaning beyond that—it doesn't explain what project_id does to the result or why language is needed for a status read.

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 sentence identifies the resource (the person's Pugi sites) and the information returned (live state and address), which is enough to distinguish it from publish and build_site. It is framed as a trigger rather than stating a verb like 'retrieve', but the effect is still clear.

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?

It gives an explicit use condition: when the person asks which sites are live and at what address. It does not mention alternatives or when not to use it (e.g. versus job_status for a pending build), but the positive trigger is unambiguous.

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