add_item

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

With no annotations provided, the description carries full burden for behavioral disclosure. While 'Add a new item' implies a write/mutation operation, it doesn't address important behavioral aspects like: what happens if an item with the same ID exists, whether this requires specific permissions, what the response looks like, or potential side effects. For a mutation tool with zero annotation coverage, this is insufficient.

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 maximally concise - a single clear sentence that states exactly what the tool does without any unnecessary words. It's front-loaded with the core purpose and wastes no space on redundant information.

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 mutation tool with no annotations and no output schema, the description is incomplete. It doesn't explain what type of 'item' this adds (crucial given the sibling tools), what the expected response format is, or any behavioral constraints. The agent would need to guess about important operational details.

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?

With 100% schema description coverage, the schema already documents all three parameters (id, name, project_path). The description adds no additional parameter semantics beyond what's in the schema - it doesn't explain what constitutes a valid 'item', what the ID range should be, or how the name relates to the item type. This meets the baseline for high schema coverage.

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 resource ('new item to the database'), making the purpose immediately understandable. However, it doesn't differentiate this tool from similar siblings like 'add_actor', 'add_class', or 'add_skill', which all appear to add different types of database entries in the RPG Maker context.

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?

The description provides no guidance on when to use this tool versus alternatives. With multiple 'add_' siblings (add_actor, add_class, add_skill, etc.), there's no indication of what type of 'item' this adds or when it's appropriate versus other database addition tools.

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