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

Annotations already flag readOnlyHint=false and destructiveHint=true, and 'Proposes only' usefully clarifies that the call stages a proposal rather than committing the skip outright. It does not say whether the proposal auto-expires, requires a separate confirmation, or what happens if the routine isn't scheduled today, which are the remaining behavioral unknowns for a destructive-staging tool.

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?

Two short sentences, front-loaded with the action and ending on the key constraint 'Proposes only.' The slight repetition of 'propose/Proposes' is justified because the fragment adds distinct semantics (staging vs. executing) rather than restating the first sentence.

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, low-parameter tool with no output schema, the definition covers the core action and the fact that it only proposes. It is still thin on the lifecycle of the proposal (what the return looks like, whether confirmation is needed, date scoping), which matters given the destructiveHint.

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 coverage is only 33% (routine_id and reason have no schema descriptions), so the description partially compensates by noting the reason is optional. routine_id is only implied by 'instance of a recurring routine', and additional_information is never mentioned in the description at all, so some compensation gap remains.

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 ('propose skipping') and a specific resource ('today's instance of a recurring routine'), which clearly separates it from complete_routine_today or update_routine. It does not explicitly name the sibling or the follow-up (e.g., confirm_change) it hands off to, but the action is unambiguous.

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?

Usage is implied by the name and description: call this when the user wants to skip a routine occurrence today. There is no explicit statement of prerequisites, no when-not guidance, and no mention of what to do after the proposal (confirm/discard), leaving the agent to infer the follow-up flow from sibling names.

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