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

With no annotations provided, the description carries the burden of behavioral disclosure. It does reveal one meaningful behavior: log lines are returned newest last. However, it does not mention potential latency, line format, access constraints, or error behavior, leaving some room for surprise.

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, each earning its place: the first defines what the tool returns, and the second gives the practical use case. No filler or redundant restating of the schema.

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?

Given its simplicity and fully documented parameters, the description contains what an agent needs to invoke it: what it returns, ordering, and when to use it. The absence of an output schema is mitigated by the explicit 'log lines' language, though a bit more detail on output format could push it higher.

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 the parameters are already well-documented. The description adds negligible parameter-level detail, but that matches the baseline expectation; it correctly refers to the tool being inspected.

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 clearly identifies the resource (the tool container's recent log lines) and the diagnostic purpose (finding why a tool is failing). It lacks an explicit verb like 'reads' or 'returns', but the intended action is unmistakable and distinct from all sibling tools.

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 explicitly tells the agent when to use the tool: to find out why a tool is failing. It does not discuss when not to use it or compare with alternatives, but no sibling tool provides log access, so the guidance is sufficient.

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