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

Annotations already declare destructiveHint=true, idempotentHint=false and openWorldHint=true, so the safety profile is covered. The description usefully adds the target of destruction (the armed checkpoint button on the worker's page), but says nothing about what happens on a repeat call (non-idempotent), required permissions, or whether the task state changes.

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 front-loaded sentence stating verb, object and scope with zero filler. Nothing redundant and nothing that needs to be moved earlier.

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 tool with no output schema, annotations carry the safety story and the schema carries the arguments, but the description leaves the non-idempotent behavior and sibling routing (cancel_task vs cancel_checkpoint) unexplained. Adequate, with clear gaps.

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% and both parameters are documented there, including the pointer that checkpoint_id comes from add_checkpoint. The description adds no syntax, format, or constraint details beyond the schema, so baseline 3 applies.

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?

Names a specific verb ('Remove') and resource ('an armed checkpoint button') and even scopes where it lives ('from the worker's page'), so the agent knows this undoes an armed checkpoint. It does not explicitly contrast with the obvious sibling add_checkpoint, but the effect 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?

There is no when-to-use guidance, no prerequisites, and no mention of how this differs from sibling teardown tools like cancel_task or stop_interactive. The agent must infer from the name alone that this is the undo for add_checkpoint.

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