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

Annotations already declare destructiveHint=true, idempotentHint=true and readOnlyHint=false, so the safety profile is covered. The description adds two things the annotations cannot: where the identifier originates and a mandatory human-confirmation step, which is meaningful for a destructive operation. It stops short of describing the resulting state (e.g. whether entries logged during the skip are affected).

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 clauses, no filler: the action and its id provenance come first, the safety directive second. Every word earns its place and nothing an agent needs is buried.

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?

With one fully documented parameter, an output schema handling return values, and annotations covering the destructive/idempotent profile, the description is nearly complete. Only the post-removal effect on the underlying day is unstated, which is a minor gap for a single-id undo tool.

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 100%, so the baseline is 3, but the description adds real value by enumerating the three producer tools the uuid must be drawn from — information absent from the schema's generic 'The skip or pause to remove.'

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?

Specific verb ('Removes') plus specific resource ('a skip or a pause'), scoped by id. It goes further than the name by naming the exact sibling tools that produce the ids (skip_day, pause_days, summarize_day), so an agent can place it in the workflow 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?

The description establishes the precondition for use — the id must come from skip_day, pause_days, or summarize_day — and adds an explicit confirmation rule ('Ask the person first'). It does not name a when-not case or a sibling alternative (e.g. re-skipping instead of unskipping), which keeps it short of a 5.

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