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 covered. The description adds valuable specifics beyond annotations: that the whole run and point history are deleted (scope of destruction) and a user-confirmation requirement. This is genuine added context.

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 short sentences, front-loaded with the action and the critical 'INCLUDING history' warning before the confirmation instruction. No waste.

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 2-param destructive delete with full schema coverage and annotations, the description covers the key extras an agent needs: destruction scope and confirmation requirement. No output schema is needed for a delete. Minor gap: no mention of irreversibility beyond 'deletes'.

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%, with configId and projectId fully documented in the schema. The description adds no parameter syntax or format details. Baseline 3 is correct when schema does the heavy lifting.

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 (Deletes) and resource (geo-grid rank-tracking config), enough to distinguish from siblings like delete_local_pack_rank_config. Doesn't explicitly name the sibling it differs from, but the resource is specific.

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?

Adds a 'Confirm with the user before calling' instruction, which is useful guidance for a destructive op. However, it does not say when to use delete_local_rank_grid_config vs delete_local_pack_rank_config or other config deletion tools.

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