initializeWorld

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does mention the mandatory inclusion of all fields and empty resources, but fails to disclose side effects, persistence, whether the world is immediately active, or what the return value is. This is a minimal level of transparency.

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 extremely concise and front-loaded, with the core purpose in the first clause and a critical requirement following. Every word earns its place, and there is no extraneous 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?

Given the complexity of the schema (9 parameters, nested objects) and no output schema, the description is incomplete. It lacks context about the tool's role in the simulation lifecycle, how it relates to sibling tools like simulate or loadWorld, and what the caller should expect. An agent would need to make assumptions about return values and prerequisites.

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 provides 100% description coverage for all 9 parameters, so the baseline is 3. The description's emphasis on including resources:{} is redundant since the schema already states 'REQUIRED: Include even if empty {}.' No additional semantic value is added.

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 tool's function with a specific verb and resource: 'Create a new world simulation.' This distinguishes it from sibling tools like loadWorld, listWorlds, or simulate, which operate on existing worlds or advance simulation.

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 explicit guidance on when to use this tool versus alternatives. It only offers a parameter requirement (include all fields), which is an invocation detail, not usage context. No mention of 'use this to initialize a world before simulating' or any exclusions.

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