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

The readOnlyHint annotation already establishes that this is a safe read operation. The description adds no behavioral context beyond that: it does not state what happens when the id is not found, whether the transcript may be empty or incomplete, or what the retrieval returns.

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 with no filler and the retrieval condition is front-loaded. However, its extreme brevity leaves substantial gaps that a slightly longer sentence could have closed, making it minimally adequate rather than well-structured.

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?

This is a simple one-parameter read tool with annotations covering safety, but there is no output schema, so the description should describe what a transcript result contains or its shape. It also omits error/not-found behavior, leaving the agent without enough information about the outcome of the call.

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 0% for the single required id parameter, so the description must compensate and does not. 'By id' merely restates that the parameter identifies a transcript; it adds no format, source, or validity details beyond what the schema's type and required field already convey.

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 and resource ('Get one transcript') and specifies single-item retrieval 'by id', which implicitly distinguishes it from list_transcripts. It does not explicitly differentiate itself from the closely related spokephone_get_transcript_segments sibling, so it falls short of a 5.

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 phrase 'by id' implies the tool is used when a transcript id is known, but there is no explicit when-to-use guidance, no exclusions, and no mention of alternatives such as get_transcript_segments or list_transcripts. An agent must infer the selection criteria entirely.

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