get_benchmark_fixture

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

With no annotations provided, the description must carry the behavioral disclosure burden. It indicates a read-only fetch operation and that fixtures are bundled locally, but it does not address potential errors (e.g., non-existent name) or the exact return format. This is basic transparency for a simple read tool, but lacks depth.

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 sentence that immediately states the action and object, with no filler or redundancy. Perfectly concise.

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 one parameter and no output schema, the description sufficiently defines the purpose and input. It could mention error handling, but the simplicity of the tool makes the description adequate for an agent to invoke it correctly.

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 schema covers the single parameter 'name' with a 100% description and an example format. The tool description adds minimal extra meaning by linking the parameter to 'bundled benchmark fixture', but overall the schema does the heavy lifting.

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 uses a specific verb 'Fetch' and clearly identifies the resource: the Verilog source of a bundled benchmark fixture. This distinguishes it from siblings like list_benchmark_fixtures, which lists fixtures rather than fetching their content.

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 retrieving the source code of a named fixture, but it does not explicitly mention when to use this versus alternatives such as list_benchmark_fixtures. No exclusions or alternative guidance is provided, making it merely implied usage.

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