execute_exercise_result_deletion

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

Annotations already flag destructive/non-idempotent/openWorld, but the description goes further: it discloses the internal sequence (recheck calendar, one request, no retries, reread calendar) and enumerates the three terminal statuses including the stale case where nothing is sent. That is exactly the context an agent needs before an irreversible call.

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?

Three tight sentences: action first, precondition second, execution/outcome semantics last. No restated name or title, no filler.

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 destructive one-shot tool with an output schema present, the description covers sequencing, safety gate, retry policy and status meanings, so it is close to complete. The remaining gap is the lifecycle of actionReference (validity window, reuse across calls), which the description leaves implicit.

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?

The schema documents 'confirmed' but leaves 'actionReference' bare (50% coverage); the description compensates by tying that reference to the preview produced by prepare_exercise_result_deletion and by emphasizing the explicit-confirmation gate. It does not say whether the reference expires or must be used unmodified, so it falls short of full compensation.

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?

States a specific verb and resource ('Delete the exact own activity') and pins it to the preceding sibling 'prepare_exercise_result_deletion', so an agent can distinguish it from prepare_exercise_result_deletion or execute_exercise_result without opening any schema.

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?

Gives an explicit precondition ('only after the account holder explicitly confirmed it') and an explicit routing rule (the activity must be the one previewed by the prepare sibling). It also states the call-once policy ('sends at most one deletion request, never retries'), which tells the agent when not to re-invoke.

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