analyze_workout_execution

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

Annotations already establish readOnlyHint=true and destructiveHint=false, so the safety profile is known. The description adds meaningful behavioral context: results are conditional on COROS exposing programExerciseIndex, and the tool specifically reports target compliance rather than generic performance metrics. No contradiction exists.

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, lean sentence that front-loads the core comparison and then adds the key conditional reporting detail. Every phrase contributes meaning, with no filler or redundant restatement of the tool name.

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 no output schema and no parameter descriptions, the description provides a solid high-level purpose and one important conditional. It does not explain return shape, failure behavior, what happens when programExerciseIndex is absent, or how sportType affects analysis, leaving moderate gaps for an agent invoking it.

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 supply parameter meaning. It implicitly maps workoutId to the planned workout and activityId to the completed activity, but sportType is left entirely unexplained, and no parameter-level detail or format guidance is provided.

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 ('Compare'), a clear resource pair (planned COROS workout vs. completed activity linked to program blocks), and a concrete outcome (reports duration and HR/cadence target compliance). This distinguishes it from broad siblings like analyze_completed_activity and compare_plan_to_actual by referencing programExerciseIndex linkage.

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 phrasing implies this tool should be used when comparing a planned workout to its completed activity and when COROS exposes programExerciseIndex. However, there is no explicit statement about when to prefer this tool over similar alternatives or when not to use it, so 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.