get_testimonial

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

Annotations are absent, so the description carries the full burden of behavioral disclosure. It only states the action ('get by ID') but does not mention the return format, error behavior on missing ID, response shape, or any side effects. For a simple get operation, more context would be helpful but is not provided.

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, succinct sentence that immediately conveys the purpose. It is front-loaded with the key action and reference, and contains no filler or redundant phrasing.

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?

The tool is simple (one required parameter, no output schema), so the description is minimally acceptable for understanding what it does. However, given the lack of annotations and output schema, it would be more complete if it indicated the return type (e.g., a testimonial object) or what happens for non-existent IDs. As it stands, an agent can call it correctly for the basic action but may lack clarity on expected results.

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%, with the single parameter 'id' described as 'Testimonial ID'. The description adds no additional meaning beyond the schema, so the baseline of 3 is appropriate. There is no extra nuance about id format or constraints beyond what the schema already declares.

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 states a specific verb ('get'), a specific resource ('testimonial'), and a specific selector ('by ID'). It clearly differentiates from list_testimonials (which returns all) and from create/update/delete operations. The intent is unambiguous.

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: retrieve a single testimonial when you have its ID. However, it does not explicitly say when to prefer this over list_testimonials or what conditions would make it inappropriate (e.g., needing all testimonials). No explicit alternatives or exclusions are given.

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