card_checklist_update

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

No annotations are supplied, so the description carries the full behavioral burden. It never says what a mutation does to existing checklist items, whether the operation is idempotent, what permissions are needed, or what comes back on success or failure.

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, the trigger condition front-loaded and the validation rule trailing. Every clause earns its place with no restatement of the tool name.

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 simple three-parameter mutation with full schema coverage and no output schema, the purpose and the at-least-one rule cover the essentials. What is missing is any statement of effect or outcome, which matters here because no annotations describe the write semantics.

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 the baseline is 3, but the description adds a real cross-parameter rule the schema does not encode: only checklistId is required, yet at least one of name or pos must be supplied. That is genuine value beyond the structured fields.

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?

Names a specific verb set (renaming, changing position) against a specific resource (Trello card checklist), which cleanly separates it from siblings like card_checklist_create, card_checklist_delete and card_checklist_item_update without opening a schema. No sibling is named explicitly, so it falls short of a 5.

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?

"Use when renaming ... or changing the checklist's position" gives an explicit triggering condition, and the closing clause states the invocation precondition (at least one of name or pos). It stops short of naming an alternative tool or stating when not to use it.

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