add_checklist_item

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only says 'Add' without detailing side effects, permission requirements, idempotency, or what happens on failure (e.g., if the card or checklist doesn't exist). The mutation is implied but not elaborated. There is no contradiction, but the behavioral context is minimal.

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?

The description is a single, clear sentence: 'Add an item to a card checklist.' It has zero redundancy, front-loads the core action, and is immediately scannable. Every word contributes. This is an example of efficient communication.

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 7 parameters (3 required, 4 optional) and no output schema, the one-line description is insufficient for an agent to understand how to use the tool correctly. It doesn't mention what happens on success (e.g., returns the new item) or failure, nor does it explain how optional parameters like 'sort_order' or 'responsible_id' affect behavior. The absence of annotations further compounds the gap. The schema provides parameter names but not integration context.

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?

The schema covers all 7 parameters with descriptions (100% coverage), so the baseline is 3. The tool description adds no extra parameter meaning or guidance beyond what the schema already provides. For instance, it doesn't explain the relationship between 'checked', 'due_date', and 'responsible_id' or any constraints. The schema already handles basic semantics, so this is an acceptable baseline.

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 clearly states the action ('Add') and the resource ('an item to a card checklist'). It is specific enough to distinguish from removal or modification tools, though it doesn't explicitly contrast with sibling tools like update_checklist_item or remove_checklist_item. The phrase 'card checklist' makes the target unambiguous.

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?

No guidance is provided on when to use this tool versus alternatives such as update_checklist_item for modifying an existing item, or create_checklist for creating a new checklist. The description does not mention any prerequisites (e.g., the checklist must already exist) or conditions favoring this tool over siblings. An agent would have to infer usage from the name alone.

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