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

Annotations already declare readOnlyHint, idempotentHint and destructiveHint=false, so the safety profile is covered. The description adds a modest behavioral detail — that the response reflects liveness and the currently published commit, useful for smoke-test/deploy verification — but says nothing about rate limits, auth, or response shape.

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?

Two short sentences with no padding, and the liveness purpose comes first. However, the second sentence is opaque enough that its brevity reads as under-specification rather than efficiency.

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 output schema, the description carries the burden of explaining return values; "liveness and the commit" gives a partial hint but not the format or possible states. For a simple 0-param read tool this is roughly adequate, but an agent cannot fully predict the response.

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 is 4. No parameter-related text 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?

"Liveness and the commit that is published now" gestures at what the tool reports, but never states a verb or explicitly what it does (check service health / return current deploy commit). The second sentence about a smoke test is cryptic and does not clarify the resource. It leans on the name/title rather than describing the operation.

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 no when-to-use guidance and no differentiation from siblings such as channel_health, which an agent could easily confuse with this tool. "The smoke test waits for its own deploy here" hints at an internal usage pattern but gives the agent no actionable condition for selecting this tool.

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