get_live_sessions

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states 'currently active' but does not clarify what constitutes 'active,' whether the data is real-time or cached, how recent the 'recent' window is, or whether any side effects or state changes occur. This is insufficient for a tool with no annotation support.

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 very short, which is concise, but it is somewhat redundant ('Recent/live' and 'currently active' overlap). It lacks a verb and reads more as a fragment than a clear functional statement. While it is front-loaded, it could be tightened and made more informative without adding length.

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 annotations, no output schema, and only a minimal description, the tool's expected return value and behavior are under-specified. The agent does not know what fields the response contains, whether pagination applies, or how this tool compares to similar siblings like get_session_details or get_live_geo. Given the simple parameter set but lack of contextual info, the description is not complete enough.

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 descriptions for both parameters (appId and buildMode), achieving 100% coverage. The description does not add any additional meaning beyond what the schema already states, such as the buildMode behavior of querying appId_DEBUG. Per the rubric, baseline 3 is appropriate when the schema covers all parameters.

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 'Recent/live sessions currently active for an app' clearly indicates the tool retrieves current live sessions for a specific app, which is a specific verb+resource. It distinguishes from historical sessions by emphasizing 'currently active,' but it does not explicitly name sibling alternatives like get_historical_sessions or get_session_details.

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 usage for current/live sessions rather than historical ones, but it provides no explicit when-to-use or when-not-to-use guidance. There are no exclusions or alternatives mentioned, leaving the agent to infer based on the sibling tool names.

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