get_sms_stats_live

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

With no annotations, the description carries the burden of behavioral disclosure. 'Live' and 'snapshot' imply a real-time, read-only point-in-time view, but the description says nothing about freshness guarantees, rate limits, latency, or whether the call is safe/side-effect free.

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?

A single sentence with no filler; the core subject ('live SMS operational snapshot') is front-loaded, and the billing exclusion is a purposeful clarification. Every word contributes.

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 zero-parameter read tool, the description conveys the basic purpose and distinguishes it from billing, and no output schema exists to fill in return details. However, it does not describe the actual returned fields/metrics or contrast with the two other get_sms_stats_* siblings, leaving some ambiguity.

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 has zero parameters and an empty schema, so there are no parameter semantics for the description to add. The 'queues / in-flight' wording adds useful context about what data the no-parameter call returns.

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 identifies the resource as a live SMS operational snapshot covering queues and in-flight messages, and explicitly excludes billing reports. It is clear, but it does not name sibling stats tools (get_sms_stats_summary, get_sms_stats_timeseries) or spell out how they differ beyond 'live snapshot.'

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 one useful exclusion ('not a billing report') and implies use when operational queue/in-flight status is needed. It does not provide explicit when-to-use versus the other get_sms_stats_* siblings or mention any preconditions.

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