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calculate_event_signature

Calculate the keccak256 topic hash for an event signature to identify and filter blockchain events.

Instructions

Calculate the keccak256 topic hash for an event signature

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
signatureYesEvent signature (e.g., 'Transfer(address,address,uint256)')
Behavior3/5

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

No annotations are provided, so the description must communicate behavior. It accurately indicates the pure computational nature (keccak256 hash) without side effects, but does not disclose the return format (e.g., hex string) or potential input constraints. It does not contradict any annotations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The entire description is a single, front-loaded sentence with no wasted words. It immediately states the action and the target, making it both concise and well structured.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity, the description and schema are largely sufficient. However, since there is no output schema, mentioning the return type (e.g., hex string) would improve completeness. Still, the purpose is clear and the tool is trivial.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The input schema covers 100% of parameters with a clear example. The description adds no additional parameter semantics beyond what the schema already provides, so the baseline of 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses the specific verb 'Calculate' paired with the resource 'keccak256 topic hash for an event signature'. It clearly distinguishes this from sibling tools like keccak256_hash (generic hashing) and get_event_topic (likely retrieval) by specifying the exact purpose.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage for hashing event signatures to compute topic0, but does not explicitly state when to choose this over alternatives like keccak256_hash or get_event_topic. No exclusions or alternative recommendations are given.

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

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