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

Annotations already declare destructiveHint=true and idempotentHint=true, so the safety profile is partly covered. The description adds value beyond that by disclosing auth requirements (Indie plan, authorized account or API key with write scope), which an agent needs before calling. It stops short of stating irreversibility or what the deletion returns.

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 sentences with zero filler, and the critical 'WRITE tool' nature is front-loaded before the resource and prerequisites. Every clause earns its place.

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 single-parameter, no-output-schema destructive tool, the description covers the operation, its scope, and the permission requirements. Remaining gaps (reversibility, response shape) are minor, and the lack of an output schema means return values need not be explained.

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% and the id property already explains it is the UUID returned by sonar_list_alerts or sonar_set_alert. The description adds no parameter-level detail, so the baseline 3 applies rather than any compensation being warranted.

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 and resource: 'delete an alert subscription in the caller's Sonar workspace.' The 'WRITE tool' prefix disambiguates it from read siblings like sonar_list_alerts, and 'delete' is clearly distinguishable from sonar_set_alert. It does not, however, explicitly name those siblings as alternatives.

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 'delete an alert subscription,' and the plan/write-scope prerequisites are useful context, but the description never states when to reach for this tool versus sonar_set_alert (to modify) or sonar_list_alerts (to inspect). No explicit exclusions or routing guidance.

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