get_exercise_by_id

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

With no annotations, the description carries the full burden of behavioral disclosure. It makes the read-only nature clear through 'Get' and lists the returned fields, but it does not describe behavior for invalid or missing IDs, authentication requirements, or other potential side effects.

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 compact and front-loaded with the core purpose, followed by minimal Args and Returns sections. Every sentence contributes useful information with no fluff or repetition of the schema fields.

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 single-parameter lookup where the return shape is covered by an output schema, the description is mostly complete. It could add a note about not-found behavior or point to search_exercises when an ID isn't available, but the core invocation path is fully specified.

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%, so the Args section must compensate. It defines exercise_id as 'the unique identifier of the exercise,' which is sufficient for an agent to understand that this parameter selects the specific record to return.

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 the action ('Get detailed information') and the exact target resource ('a specific exercise by its ID'). This singular-lookup framing distinguishes it from sibling tools like get_all_exercises and the get_exercises_by_* collection 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 phrase 'by its ID' implies this tool should be used when an exercise_id is already known. However, there is no explicit guidance about when to prefer it over search_exercises or get_all_exercises, and no mention of when not to use it.

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