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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint, so the safety profile is covered. The description's only added claim is that it reflects the newly published commit, which is a useful behavioral trait, but it is buried in unclear phrasing and says nothing about what status/response is returned or any auth/failure semantics.

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?

It is a single short sentence, so it is not bloated, but it is neither front-loaded nor plainly worded — the key fact (health/liveness of the current deploy) is obscured by jargon rather than stated first.

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 no parameters and no output schema, the description carries the full burden of explaining what a caller gets back, yet it never states the return shape or success/failure semantics. For a health endpoint used by deploy smoke tests, that leaves the agent unable to reason about the result.

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; baseline 4 applies. No parameter detail is needed or missing.

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 word "Liveness" gestures at a health check, but the sentence is cryptic jargon ('o commit publicado agora', 'é como o smoke espera o próprio deploy') rather than a clear verb+resource statement. An agent can guess this reports liveness/current deployed commit, but it is not stated plainly, and nothing distinguishes it from the sibling channel_health.

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?

There is an oblique hint about how a smoke test waits on its own deploy, which implies post-deploy verification, but no explicit when-to-use, when-not-to-use, or relationship to the sibling channel_health. The agent must infer the invocation context from a metaphor.

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