get_workout_messages

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

No annotations are provided, so the description carries the full burden. It discloses the return structure in detail: '{stream: {id, title, lastActivity, ...}, comments: [...]} where each comment has content, authorName, replies, and reactions.' This goes beyond the schema and sets clear expectations for the output, though it does not explicitly state read-only behavior or mention errors or edge cases.

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 two sentences, front-loaded with the main purpose, and includes a useful output schema sketch. Every sentence earns its place with no redundant fluff.

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 description is complete enough for a simple get tool, but it misses important context: no explanation of the optional team_id parameter, no mention of ordering or pagination for comments, and no usage guidance. Given the tool has two parameters and no output schema, the description could do more to fully prepare an agent.

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 description must compensate, but it does not mention parameters at all. The schema alone provides property names and types, but the description adds no semantic value about how to use team_id or program_workout_id. This leaves the agent to infer from the tool name and schema titles.

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 'Get the messaging stream and all comments for a workout' with a specific verb and resource. It distinguishes itself from sibling tools like get_workout_details, get_workout_history, and get_workout_leaderboard by focusing specifically on messages and comments.

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 when to use the tool (when messaging stream and comments are needed) but provides no explicit guidance on when-not-to-use or alternatives. There is no comparison to siblings or mention of prerequisites, so the usage context is only implied.

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