predict_create2_address

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

With no annotations, the description carries the full burden. It does disclose that the operation does not deploy, which is safety-relevant. However, it does not explain whether the calculation is purely local/off-chain, how the factoryAddress default works, or what output format to expect.

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, focused sentence that front-loads the purpose and key behavioral trait ('without deploying'). There is no wasted wording or redundant detail.

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?

The description is sufficient for basic selection but lacks important context for a 6-parameter tool with no output schema and no annotations. It does not explain how factoryAddress or constructorArgs factor into the calculation or what the returned address depends on, leaving the agent to infer these from the schema alone.

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 input schema covers 100% of parameters with descriptions, so the baseline is 3. The tool description adds no additional meaning about how parameters like factoryAddress, salt, and bytecode interact, relying entirely on the schema.

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 calculates a deterministic CREATE2 address without deploying. The verb 'calculate' and resource 'deterministic address for a CREATE2 deployment' are specific. However, it does not distinguish itself from the sibling tool 'compute_create2_address', which appears to serve the same purpose.

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 phrase 'without deploying' implies this tool is for cases where only the address is needed and no deployment is desired. However, there is no explicit guidance on when to use this over related tools like 'compute_create2_address' or 'deploy_create2', and no exclusions are stated.

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