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

Annotations already declare destructiveHint=true, readOnlyHint=false, and openWorldHint=false, so the agent knows this is an irreversible write. The description is consistent with that but adds only the id provenance, saying nothing about whether the removal is reversible, what happens to conflicting bookings, or what is returned.

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?

A single short sentence with the action front-loaded and the parameter hint parenthetically attached. Nothing is wasted and nothing needs to be skimmed for.

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 two-parameter destructive mutation with no output schema, the definition covers the essentials of what to call and where the id comes from. It omits the failure/edge behavior an agent would want before an irreversible delete, leaving a gap that annotations only partially cover.

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 50%: 'site' is documented in the schema but 'id' has no schema description. The description compensates by telling the agent the id must come from get_booking, which is exactly the missing meaning. It does not explain the id format (slug vs numeric) or that site scopes the lookup, so it is not exhaustive.

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 ('Remove') and resource ('a blocked period'), which cleanly distinguishes it from block_time and the booking tools. It does not explicitly name the sibling counterpart block_time, but the object of 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?

The parenthetical '(id from get_booking)' gives a prerequisite for obtaining the required id, which is real usage guidance. However, it never states when to prefer this over block_time or update_booking, nor any preconditions such as whether the block must be in the future.

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