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

With no annotations, the description carries the full behavioral burden. It usefully discloses that the website will stop loading and that the subscription can be set back, but it does not cover permissions, side effects on related records, or what 'remove' means operationally beyond the visible effect.

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?

The description is short and front-loaded, leading with the removal action and following with impact and reversibility. The final sentence is slightly awkward ('set any subscription back to the website') but still earns its place by clarifying recoverability.

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 one-parameter tool with no output schema, the description gives enough to understand the action, its visible effect, and reversibility. It remains thin on permission requirements and exact subscription semantics, but the low complexity limits how much more is needed.

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 description coverage is 100%, so the single agentId parameter is already documented as 'The agent id that the website belongs to.' The description adds no parameter-specific meaning beyond the schema, which is acceptable at the baseline for full coverage.

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?

The description states a specific verb and resource: 'Remove subscription from agent website.' It clearly identifies the target as the agent website, which distinguishes it from property-website and generic website removal siblings. It does not explicitly name those alternatives, but the action and scope are clear.

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 stated effect: use this when you want to stop an agent website from loading. The description does not explicitly say when to prefer this over subscription_remove_property_website or subscription_remove_website, nor does it list prerequisites.

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