list_tools

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

The description implies a read-only operation (listing tools) but does not explicitly state that it has no side effects or that it is safe. Since no annotations are provided, the description carries the full burden, and while the behavior is simple, it lacks explicit disclosure of traits like idempotency or non-destructiveness.

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 a single, short sentence that conveys the tool's purpose without any unnecessary words. It is front-loaded and efficient.

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 tool with no parameters and an existing output schema, the description is complete. It adequately informs the agent of the tool's function without needing to elaborate on return values.

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 the schema coverage is 100% (empty schema). With no parameters to describe, the description does not need to add parameter semantics, and the baseline score of 4 is appropriate.

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 states that the tool provides a list of available tools and their descriptions. It uses a specific verb ('provides') and identifies the resource (available tools). While it distinguishes itself from the many sibling tools (which are domain-specific), it does not explicitly differentiate its purpose from other meta-tools (if any).

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?

No usage guidelines are provided. The description does not indicate when to use this tool versus alternatives, nor does it mention any prerequisites or context for invocation.

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