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

Annotations already flag destructiveHint=true and idempotentHint=true, but the description adds meaningful context: the removal is 'permanent', it requires user confirmation, and IDs must never be surfaced. These behavioral constraints go beyond the structured hints.

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?

Four short, front-loaded sentences with no filler; the destructive action and confirmation rule lead. The 'never show IDs' sentence is slightly tangential but still relevant to invocation behavior.

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?

With annotations covering the safety profile, full schema coverage, and no output schema, the description supplies everything needed: permanence, confirmation requirement, ID sourcing, and the sibling alternative. Nothing an agent needs to call it correctly is missing.

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 the schema itself documents both checklist_id and item_ids as coming from trip_checklists, so the description largely restates that provenance. The 'never show IDs to users' note adds a presentation constraint but no new parameter mechanics. 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?

Specific verb+resource (remove tasks from a trip checklist) with explicit scope ('one or more tasks'). It also distinguishes itself from the whole-checklist deletion path by naming segment_delete, so an agent can route without opening schemas.

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?

Gives clear usage context: source the IDs from trip_checklists, confirm with the user first, and use segment_delete for a full checklist. Lacks explicit exclusion against adjacent item-level tools (checklist_item_update, checklist_items_reorder), but the intent is unambiguous.

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