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

Annotations already declare destructiveHint=true and idempotentHint=true, so the irreversibility warning largely restates structured data. The description adds no new behavioral context such as permission requirements or what happens to dependent resources (e.g., attached tools/knowledge) when the assistant is removed.

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 with the core action front-loaded and the caution second; little waste. The irreversibility clause is slightly redundant with annotations but justified as a safety reminder.

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 delete with full schema coverage and annotations carrying the safety profile, the description covers what an agent needs to call it correctly. The only minor gap is side effects on dependent resources, which is not stated.

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%, so both `id` and `if_revision` are fully documented in the schema itself, establishing baseline 3. The description's 'review the identifier' adds only emphasis, no new parameter semantics.

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 ('Delete this assistant'), making the operation immediately identifiable. It does not explicitly differentiate itself from siblings such as update_assistant or delete_tool, but the resource naming is clear enough.

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 verb rather than stated: there is no explicit guidance on when to delete versus archive/update, nor any prerequisites. The caution to 'review the identifier before deleting' is a safety note, not selection guidance against alternatives.

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